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gno/bin/gsh/cmd.asm

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Replaced last of old shell calls with their newer counterparts. This removed the need for p-string routines, so they were removed. Also removed alloc256/free256 and associated data structures. In removing calls, found instances in pwd & prefix commands and prompt handler where current directory name was assumed to be < 256 characters; recoded to use a flexible buffer size. Updated and expanded mmdebug.asm routines that perform error checking on memory management calls. Added macros ~NEW and ~DISPOSE that invoke either the real or debug routines. Fixed call to read $TERM variable's length to fix PR#81. Removed echo of data when setting value of $< in expandvars (expand.asm). The characters are echoed as they are typed and do not need to be reprinted on stdout after carriage-return is typed. Added error checking to the various flavors of prefix (just like cd): - Verify 2nd parameter is a valid directory before setting. - Verify 1st parameter < 32 before displaying or setting.
1998-08-03 17:30:30 +00:00
**************************************************************************
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
*
* The GNO Shell Project
*
* Developed by:
* Jawaid Bazyar
* Tim Meekins
*
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
* $Id: cmd.asm,v 1.11 1999/02/08 17:26:50 tribby Exp $
This checkin contains only enough changes that gsh is able to assemble and link. However, it does not work yet and thus still needs work. The *.asm files have had the following common changes: - 'keep' lines were eliminated - the 'mcopy' now takes the macro from the /obj/gno/bin/gsh directory. This is in anticipation of having the macro files generated from a single source file; there is a large amount of duplication. For the moment, the makefile merely copies the old macro files from the "M" directory to the /obj/gno/bin/gsh directory. - start each file with a dummy routine so that the source code winds up in the *.o rather than the *.root file. - added the 'setcom 60' directive; there were many source lines that were otherwise getting truncated. The makefile is a complete rewrite.
1998-04-24 15:38:47 +00:00
*
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
**************************************************************************
*
* CMD.ASM
* By Tim Meekins
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* Modified by Dave Tribby for GNO 2.0.6
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
*
* Command line parsing routines.
*
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* Note: text set up for tabs at col 16, 22, 41, 49, 57, 65
* | | | | | |
* ^ ^ ^ ^ ^ ^
**************************************************************************
*
* Interfaces defined in this file:
*
* gettoken subroutine (4:word,4:stream)
* Returns value of token in Accumulator
*
* command subroutine (4:waitpid,2:inpipe,2:jobflag,2:inpipe2,
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
* 4:pipesem,4:stream,4:awaitstatus)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
* Called by execute to act on a single command
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* Returns next token in Accumulator
*
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
* argfree subroutine (4:path,2:argc,4:argv)
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
*
* ShellExec subroutine (4:path,2:argc,4:argv,2:jobflag)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
* Reads and executes commands from an exec file.
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* Returns completion status in Accumulator
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
*
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* execute subroutine (4:cmdline,2:jobflag)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
* Interpret a command line.
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* Returns completion status in Accumulator
*
* system Defined for libc; interface in <stdlib.h>
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
* User interface to execute commands via shell
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* int system (char *command)
*
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
**************************************************************************
This checkin contains only enough changes that gsh is able to assemble and link. However, it does not work yet and thus still needs work. The *.asm files have had the following common changes: - 'keep' lines were eliminated - the 'mcopy' now takes the macro from the /obj/gno/bin/gsh directory. This is in anticipation of having the macro files generated from a single source file; there is a large amount of duplication. For the moment, the makefile merely copies the old macro files from the "M" directory to the /obj/gno/bin/gsh directory. - start each file with a dummy routine so that the source code winds up in the *.o rather than the *.root file. - added the 'setcom 60' directive; there were many source lines that were otherwise getting truncated. The makefile is a complete rewrite.
1998-04-24 15:38:47 +00:00
mcopy /obj/gno/bin/gsh/cmd.mac
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
dummycmd start ; ends up in .root
This checkin contains only enough changes that gsh is able to assemble and link. However, it does not work yet and thus still needs work. The *.asm files have had the following common changes: - 'keep' lines were eliminated - the 'mcopy' now takes the macro from the /obj/gno/bin/gsh directory. This is in anticipation of having the macro files generated from a single source file; there is a large amount of duplication. For the moment, the makefile merely copies the old macro files from the "M" directory to the /obj/gno/bin/gsh directory. - start each file with a dummy routine so that the source code winds up in the *.o rather than the *.root file. - added the 'setcom 60' directive; there were many source lines that were otherwise getting truncated. The makefile is a complete rewrite.
1998-04-24 15:38:47 +00:00
end
setcom 60
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
SIGINT gequ 2
SIGSTOP gequ 17
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
SIGTSTP gequ 18
SIGCHLD gequ 20
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; TOKENS used by the parser
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
T_WORD gequ 1
T_BAR gequ 2
T_AMP gequ 3
T_SEMI gequ 4
T_GT gequ 5
T_GTGT gequ 6
T_GTAMP gequ 7
T_GTGTAMP gequ 8
T_LT gequ 9
T_NL gequ 10
T_EOF gequ 11
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
T_ERROR gequ 12
T_NULL gequ 13
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
MAXARG gequ 256
BADFD gequ -2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
**************************************************************************
*
* Read a token from the buffer.
*
* Input: word points to a buffer to place a word is parsed.
*
* Ouput: the token is placed in the accumulator
*
**************************************************************************
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
gettoken START
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
buf equ 1
state equ buf+4
ch equ state+2
space equ ch+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stream equ space+3
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
word equ stream+4
end equ word+4
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
; subroutine (4:word,4:stream),space
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tsc
sec
sbc #space-1
tcs
phd
tcd
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; What state are we in
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
NEUTRAL equ 0 ;a neutral state, get anything
GTGT equ 1 ;looking for a second '>'
INQUOTE equ 2 ;parsing a quoted string
INWORD equ 3 ;parsing a word
SINGQUOTE equ 4 ;single quote string
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; Start in the neutral state
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
ld2 NEUTRAL,state
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda [stream]
sta buf
ldy #2
lda [stream],y
sta buf+2
;
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; Main loop: get character and take action based upon state.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
loop lda [buf]
incad buf
Changes for gsh version 2.0d9: Added additional optional debug code. A version of gsh with the memory checking debug code turned on is available as an exe file. Lock and unlock the hash mutual exclusion key in when disposing of the hash table. Allow five digits rather than four when printing the process number in the ps command. Piping the output of a command into a non-executable file no longer causes gsh to hang.
1999-01-14 17:44:25 +00:00
and #$00FF
sta ch ch = next character.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
bne switch
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; End of string detected. Action depends upon current state.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
if2 state,ne,#INWORD,loop2
jmp endword state INWORD: end the word.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
loop2 anop
dec buf Went too far: back up pointer.
if2 @a,ne,#GTGT,loop3
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
lda #T_GT state GTGT: return single GT.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jmp done
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
loop3 if2 @a,eq,#INQUOTE,error1 INQUOTE: error.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
if2 @a,eq,#SINGQUOTE,error2 SINGQUOTE: error.
lda #T_EOF must be NEUTRAL: return EOF.
jmp done
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
error1 ldx #^errstr1 Report string errors.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda #errstr1
bra error0
error2 ldx #^errstr2
lda #errstr2
error0 jsr errputs
lda #T_ERROR
jmp done
;
; jump to the current state
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
switch lda state
asl a
tax
jmp (statetbl,x)
statetbl dc a2'case_neutral'
dc a2'case_gtgt'
dc a2'case_inquote'
dc a2'case_inword'
dc a2'case_single'
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; CASE NEUTRAL
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; Check for special characters:
; ; & | < creturn EOF -- set token value and go to done
; space tab -- ignore and stay in loop
; > -- Change state to GTGT and stay in loop
; # -- Eat characters to creturn or lf, then stay in loop
; " -- Change state to INQUOTE and stay in loop
; ' -- Change state to SINGQUOTE and stay in loop
; \ -- Get next character, change state to INWORD, and stay in loop
; All other characters: change state to INWORD and stay in loop
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
case_neutral if2 ch,ne,#';',neut1
lda #T_SEMI
jmp done
neut1 if2 @a,ne,#'&',neut2
lda #T_AMP
jmp done
neut2 if2 @a,ne,#'|',neut3
lda #T_BAR
jmp done
neut3 if2 @a,ne,#'<',neut4
lda #T_LT
jmp done
neut5 cmp #' ' ;space
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jeq loop
cmp #9 ;tab
jeq loop
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
if2 @a,ne,#'>',neut6
lda #GTGT
bra neut10
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
neut4 if2 @a,ne,#13,neut4a ;return
lda #T_NL
jmp done
neut4a if2 @a,ne,#0,neut4b ;EOF [Is this possible?? DMT]
lda #T_EOF
jmp done
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
neut4b if2 @a,ne,#'#',neut5 ;comment
neut4c lda [buf]
and #$7F
beq neut4d
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
incad buf
if2 @a,eq,#13,neut4d
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
if2 @a,eq,#10,neut4d
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
bra neut4c
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
neut4d jmp loop
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
neut6 if2 @a,ne,#'"',neut7
startquote lda #INQUOTE
bra neut10
neut7 if2 @a,ne,#"'",neut8
startsingle lda #SINGQUOTE
bra neut10
neut8 if2 @a,ne,#'\',neut9
lda [buf]
and #$FF
incad buf
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
if2 @a,eq,#13,neut10a
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
neut9 sta [word] ;default
incad word
lda #INWORD
neut10 sta state
neut10a jmp loop
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; CASE GTGT
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
case_gtgt if2 ch,eq,#'>',gtgt2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
if2 @a,eq,#'&',gtgt1
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
dec buf
lda #T_GT
jmp done
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
gtgt1 lda #T_GTAMP
jmp done
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
gtgt2 lda [buf]
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
and #$FF
if2 @a,eq,#'&',gtgt3
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda #T_GTGT
jmp done
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
gtgt3 incad buf
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda #T_GTGTAMP
jmp done
;
; CASE INQUOTE
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
case_inquote if2 ch,ne,#'\',quote2 ;is it a quoted character?
lda [buf]
incad buf
putword sta [word]
incad word
jmp loop
quote2 if2 @a,ne,#'"',putword
ld2 INWORD,state
jmp loop
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; CASE SINGLEQUOTE
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
case_single anop
if2 ch,ne,#"'",putword
ld2 INWORD,state
jmp loop
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; CASE INWORD
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
case_inword if2 ch,eq,#000,endword
if2 @a,eq,#';',endword
if2 @a,eq,#'&',endword
if2 @a,eq,#'|',endword
if2 @a,eq,#'>',endword
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
if2 @a,eq,#'<',endword
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
if2 @a,eq,#' ',endword
if2 @a,eq,#009,endword
if2 @a,eq,#013,endword
cmp #'"'
jeq startquote
cmp #"'"
jeq startsingle
if2 @a,ne,#'\',putword
lda [buf]
incad buf
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
and #$FF
if2 @a,eq,#13,word2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
bra putword
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
word2 jmp loop
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
endword dec buf
finiword lda #0
sta [word]
lda #T_WORD
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
done tax
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda buf
sta [stream]
lda buf+2
ldy #2
sta [stream],y
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda space
sta end-3
lda space+1
sta end-2
pld
tsc
clc
adc #end-4
tcs
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
txa
rtl
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
errstr1 dc c'gsh: Missing ending ".',h'0d00'
errstr2 dc c"gsh: Missing ending '.",h'0d00'
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
END
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
**************************************************************************
*
* Parse a single command
*
**************************************************************************
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
command START
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pipefds equ 1
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
errappend equ pipefds+4
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
errfile equ errappend+2
srcfile equ errfile+4
dstfile equ srcfile+4
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
needq equ dstfile+4
argv equ needq+2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
word equ argv+4
cmdline equ word+4
pid equ cmdline+4
append equ pid+2
temp equ append+2
argc equ temp+4
token equ argc+2
space equ token+2
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
awaitstatus equ space+3
stream equ awaitstatus+4
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pipesem equ stream+4
inpipe2 equ pipesem+4
jobflag equ inpipe2+2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
inpipe equ jobflag+2
waitpid equ inpipe+2
end equ waitpid+4
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
; subroutine (4:waitpid,2:inpipe,2:jobflag,2:inpipe2,4:pipesem,4:stream,4:awaitstatus),space
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tsc
sec
sbc #space-1
tcs
phd
tcd
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
ph4 maxline_size Allocate maxline_size bytes
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
~NEW and pointer in cmdline.
sta cmdline
stx cmdline+2
lda #0 Initialize to null C string.
sta [cmdline]
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
jsl allocmaxline Allocate memory for token.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta word
stx word+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph4 #MAXARG*4 Allocate argv parameter pointer array
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
~NEW
sta argv
stx argv+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
stz argc Argument count = 0
stz srcfile Clear I/O redirection pointers
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stz srcfile+2
stz dstfile
stz dstfile+2
stz errfile
stz errfile+2
stz pipefds
stz pipefds+2
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda #-3
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [waitpid]
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
loop pei (word+2) Get next token from input stream.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (word)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (stream+2)
pei (stream)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl gettoken
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
sta token Jump to appropriate token handler.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
asl a
tax
jmp (toktbl,x)
toktbl dc a2'loop'
dc a2'tok_word'
dc a2'tok_bar'
dc a2'tok_amp'
dc a2'tok_semi'
dc a2'tok_gt'
dc a2'tok_gtgt'
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
dc a2'tok_gtamp'
dc a2'tok_gtgtamp'
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
dc a2'tok_lt'
dc a2'tok_nl'
dc a2'tok_eof'
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
dc a2'tok_error'
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; Parse a word token
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tok_word if2 argc,ne,#MAXARG,word1
lda #err00 ;Too many arguments
jmp error
word1 pei (word+2)
pei (word)
jsr cstrlen
inc a
pea 0
pha
~NEW
sta temp
stx temp+2
ora temp+2
bne word2
lda #err01 ;Out of memory for arguments
jmp error
word2 lda argc ;Copy word to argv[argc]
asl2 a
tay
lda temp
sta [argv],y
lda temp+2
iny2
sta [argv],y
pei (word+2)
pei (word)
pei (temp+2)
pei (temp)
jsr copycstr
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Determine whether parameter needs surrounding quotes
;
stz needq
lda [word] If this is a null parameter,
and #$FF
beq qneeded it needs to be quoted.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ldy #0
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
chkchar if2 @a,eq,#' ',qneeded
if2 @a,eq,#'&',qneeded
if2 @a,eq,#'|',qneeded
if2 @a,eq,#'<',qneeded
if2 @a,eq,#'>',qneeded
if2 @a,eq,#';',qneeded
iny Not special character.
lda [word],y Get next character in parameter.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
and #$FF
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
beq appword Done if null character.
bra chkchar
qneeded inc needq Quotes needed.
;
; Append word to command line (optionally, with quotes)
;
appword anop
pei (word+2)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (word)
pei (cmdline+2)
pei (cmdline)
jsr cstrlen
tay
ldx argc
beq nospace
lda #' '
sta [cmdline],y
iny
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
nospace lda needq If special char is in parameter,
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
beq noquote
lda [word]
and #$FF
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
cmp #'"' and it doesn't start with '"',
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
bne doquote
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
stz needq
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
bra noquote
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
doquote lda #'"' add a '"' at start.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
sta [cmdline],y
iny
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
noquote pei (cmdline+2)
add2 @y,cmdline,@a
pha
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
jsr copycstr Copy the parameter.
lda needq If quote was added at start,
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
beq noquote2
pei (cmdline+2)
pei (cmdline)
jsr cstrlen
tay
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
lda #'"' add another at end.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
sta [cmdline],y
iny
lda #0
sta [cmdline],y
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
noquote2 inc argc ;increment argument count
goloop jmp loop
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; Parse a '<' token
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tok_lt lda srcfile
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ora srcfile+2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
beq lt1
lda #err02 ;Extra < encountered
jmp error
lt1 lda inpipe
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
beq lt2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda #err09 ;< conflicts with |
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jmp error
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
lt2 jsl allocmaxline
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stx srcfile+2
sta srcfile
phx
pha
pei (stream+2)
pei (stream)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl gettoken
if2 @a,eq,#T_WORD,goloop
lda #err03 ;Illegal < specified
jmp error
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; Parse a '>' or '>>'
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tok_gt anop
tok_gtgt lda dstfile
ora dstfile+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
beq gt1
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda #err04 ;Extra > or >> encountered
jmp error
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
gt1 jsl allocmaxline
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stx dstfile+2
sta dstfile
phx
pha
pei (stream+2)
pei (stream)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl gettoken
if2 @a,eq,#T_WORD,gt2
lda #err05 ;Illegal > or >> specified
jmp error
gt2 stz append
if2 token,ne,#T_GTGT,gt3
inc append
gt3 jmp loop
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; Parse a '>&' or '>>&'
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tok_gtamp anop
tok_gtgtamp lda errfile
ora errfile+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
beq ga1
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda #err06 ;Extra >& or >>& encountered
jmp error
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
ga1 jsl allocmaxline
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stx errfile+2
sta errfile
phx
pha
pei (stream+2)
pei (stream)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl gettoken
if2 @a,eq,#T_WORD,ga2
lda #err07 ;Illegal >& or >>& specified
jmp error
ga2 stz errappend
if2 token,ne,#T_GTGTAMP,ga3
inc errappend
ga3 jmp loop
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
; Parse a command terminator
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tok_bar anop
tok_amp anop
tok_semi anop
tok_nl anop
tok_eof anop
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
lda argc If number of arguments == 0,
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
bne nonnull
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
lda srcfile If any of the file pointers
ora srcfile+2 are != NULL,
ora dstfile
ora dstfile+2
ora errfile
ora errfile+2
beq nulldone
ldx #^spcmdstr print error message:
lda #spcmdstr specify a command before redirecting.
jsr errputs
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
nulldone anop
pei (cmdline+2) Free buffers
pei (cmdline) allocated for
jsl nullfree command line
pei (argv+2) and argv.
pei (argv)
jsl nullfree
lda #0 Clear the waitpid
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
sta [waitpid] and return as if
lda #T_NULL nothing were parsed.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jmp exit
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
nonnull asl2 a Terminate the argv list
tay with a null poiner.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda #0
sta [argv],y
iny2
sta [argv],y
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
; See if there is a conflict between > or >> and |
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
lda token
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
if2 @a,ne,#T_BAR,runit
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda dstfile
ora dstfile+2
beq bar2
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
lda #err08 Yes: there is a conflict!
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jmp error
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
bar2 clc Calculate 32-bit address
tdc of direct page variable
adc #pipefds pipefds in X and A.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ldx #0
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pipe @xa Allocate 2 file descriptor pipe
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
; >> NOTE: what if pipe returns error?
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Call invoke param size:name
;
runit pei (argc) 2: argc
pei (argv+2) 4: argv
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (argv)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (srcfile+2) 4: sfile
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (srcfile)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (dstfile+2) 4: dfile
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (dstfile)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (errfile+2) 4: efile
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (errfile)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (append) 2: app
pei (errappend) 2: eapp
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
ldx #0
if2 token,ne,#T_AMP,run2
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
inx 2: bg
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
run2 phx
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (cmdline+2) 4: cline
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (cmdline)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (jobflag) 2: jobflag
pei (inpipe) 2: pipein (param passed in)
pei (pipefds+2) 2: pipeout (allocated: read end)
pei (inpipe2) 2: pipein2 (param passed in)
pei (pipefds) 2: pipeout2 (allocated: write end)
pei (pipesem+2) 4: pipesem (param passed in)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (pipesem)
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
pei (awaitstatus+2) 4: awaitstatus (address) [New for v2.0]
pei (awaitstatus)
lda #-1 Set waitstatus = -1; it will be set to
sta [awaitstatus] 0 or 1 iff unforked builtin is called.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl invoke
sta pid
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
cmp #-1 If invoke detected an error,
beq exit all done.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
; If next token is "|", recursively call command.
if2 token,ne,#T_BAR,run3
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
lda #-1 Pre-set for error flag.
ldx pid If no child was forked,
beq exit all done.
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (waitpid+2) 4: waitpid
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (waitpid)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (pipefds) 2: inpipe
pei (jobflag) 2: jobflag
pei (pipefds+2) 2: inpipe2
pei (pipesem+2) 4: pipesem
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (pipesem)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (stream+2) 4: stream
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (stream)
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
pei (awaitstatus+2) 4: awaitstatus
pei (awaitstatus)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl command
bra exit
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
run3 lda pid
sta [waitpid]
lda token
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
;
; Free allocated memory and return to caller
;
exit pha Hold return status on stack.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda dstfile
ora dstfile+2
beq ex1
ldx dstfile+2
lda dstfile
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
jsl freemaxline
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ex1 anop
lda srcfile
ora srcfile+2
beq ex2
ldx srcfile+2
lda srcfile
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
jsl freemaxline
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ex2 anop
lda errfile
ora errfile+2
beq ex3
ldx errfile+2
lda errfile
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
jsl freemaxline
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ex3 anop
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
ldx word+2
lda word
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
jsl freemaxline
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
ply Get return value.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda space
sta end-3
lda space+1
sta end-2
pld
tsc
clc
adc #end-4
tcs
tya
rtl
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
;
; Print error message, deallocate memory, and return with value -1
;
error ldx #^err00 (Add high word of error address)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsr errputs
tok_error pei (cmdline+2)
pei (cmdline)
jsl nullfree
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
ph4 #0 (no path to be freed)
pei (argc)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (argv+2)
pei (argv)
jsl argfree
lda #-1
jmp exit
err00 dc c'gsh: Too many arguments, so no dessert tonight.',h'0d00'
err01 dc c'gsh: Not enough memory for arguments.',h'0d00'
err02 dc c'gsh: Extra ''<'' encountered.',h'0d00'
err03 dc c'gsh: No file specified for ''<''.',h'0d00'
err04 dc c'gsh: Extra ''>'' or ''>>'' encountered.',h'0d00'
err05 dc c'gsh: No file specified for ''>'' or ''>>''.',h'0d00'
err06 dc c'gsh: Extra ''>&'' or ''>>&'' encountered.',h'0d00'
err07 dc c'gsh: No file specified for ''>&'' or ''>>&''.',h'0d00'
err08 dc c'gsh: ''|'' conflicts with ''>'' or ''>>''.',h'0d00'
err09 dc c'gsh: ''|'' conflicts with ''<''.',h'0d00'
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
spcmdstr dc c'gsh: Specify a command before redirecting.',h'0d00'
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
END
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
**************************************************************************
*
* dispose the argv
*
**************************************************************************
argfree START
space equ 0
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
subroutine (4:path,2:argc,4:argv),space
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
pei path+2 Free the path.
pei path
jsl nullfree
free1 lda argc Free each of the argv elements.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
beq free2
dec a
asl2 a
tay
lda [argv],y
tax
iny2
lda [argv],y
pha
phx
jsl nullfree
dec argc
bra free1
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
free2 pei (argv+2) Free the argv array.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (argv)
jsl nullfree
return
END
**************************************************************************
*
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
* Read and execute commands from an exec file (shell script)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
* This is overly complicated so that it can be run concurrently.
*
**************************************************************************
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
ShellExec START
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
using vardata
using global
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
count equ 1
data equ count+2
CRec equ data+4
RRec equ CRec+4
NRec equ RRec+4
ORec equ NRec+4
ptr equ ORec+4
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
sptr equ ptr+4
status equ sptr+2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
space equ status+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jobflag equ space+3
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
argv equ jobflag+2
argc equ argv+4
path equ argc+2
end equ path+4
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
; subroutine (4:path,2:argc,4:argv,2:jobflag),space
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tsc
sec
sbc #space-1
tcs
phd
tcd
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
lock mutex
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
; Set the environment variables $0 ... argc
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
lda argc Get number of variables.
jeq vars_set If 0, there are none to set.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
stz count Start with argv[0].
parmloop lda count Get index
asl2 a into address array.
tay
lda [argv],y Copy argument
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
sta ptr pointer to
iny2 ptr.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda [argv],y
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
sta ptr+2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda count If parameter number
cmp #10
bcs digits2or3 < 10,
adc #'0' Convert to single digit
sta pname_text and store in name string.
lda #1 Set length of string to 1.
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
sta pname
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
bra set_value
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
digits2or3 cmp #100 If parameter number
bcs digits3 >= 10 && < 99,
ldx #2 length = 2
bra setit otherwise
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
digits3 ldx #3 length = 3
;
; Store length (2 or 3) and convert number to text
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
setit stx pname
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
Int2Dec (@a,#pname_text,pname,#0)
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
;
; Build parameter block on stack and call SetGS (p 427 in ORCA/M manual)
;
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
set_value anop
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
tsx Save current stack pointer.
stx sptr
pea 0 Export flag
ph4 ptr Convert value string
jsr c2gsstr to a GS/OS string.
stx ptr+2 (Save for later
sta ptr deallocation).
phx
pha
ph4 #pname Address of variable name.
pea 3 Number of parameters
tsc Calculate Param Block addr
inc a (stack ptr + 1)
pea 0 and push 32 bits
pha onto stack
pea $0146 SetGS call number
jsl $E100B0 Call GS/OS
lda sptr Restore stack pointer.
tcs
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
ph4 ptr Free the value buffer.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsl nullfree
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
inc count Bump the parameter counter.
lda count If more to do,
cmp argc
jcc parmloop stay in loop.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
;
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
; $0 ... $n environment variables have all been set
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
;
vars_set unlock mutex
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Allocate memory for GS/OS calls
;
ph4 #4 CloseGS parms
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
~NEW
sta CRec
stx CRec+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph4 #10 OpenGS parameter block
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
~NEW
sta ORec
stx ORec+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph4 #12 NewLineGS parameter block
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
~NEW
sta NRec
stx NRec+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph4 #16 ReadGS parameter block
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
~NEW
sta RRec
stx RRec+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph4 #1000 Data buffer (1000 bytes)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
~NEW
sta data
stx data+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Set parameters in OpenGS parameter block
;
lda #3 Number of parameters = 3.
sta [ORec]
pei (path+2) Convert exec file
pei (path) pathname to GS/OS string
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsr c2gsstr
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ldy #4 Store in PB, offset bytes 4-7.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [ORec],y
sta ptr
iny2
txa
sta [ORec],y
sta ptr+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
lda #1 Read access only
ldy #8 Store in PB, offset bytes 8-9.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
sta [ORec],y
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (ORec+2) OpenGS(ORec)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (ORec)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph2 #$2010
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl $E100B0
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
bcc ok If there was an error,
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
cmp #$46 and it's not "file not found"
bne openerr on glogin or gshrc,
ldx jobflag
bmi godone
;
; Error opening source file. Assemble parameter block on stack and call
; ErrorGS (p 393 in ORCA/M manual)
;
openerr anop
tsx Save current stack pointer.
stx sptr
pha Push error number
pea 1 Push number of parameters
tsc Calculate PB addr
inc a (stack ptr + 1)
pea 0 and push 32 bits
pha onto stack
pea $0145 ErrorGS call number
jsl $E100B0 Call GS/OS
lda sptr Restore stack pointer.
tcs
godone jmp done
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ok ldy #2 Copy file ref num
lda [ORec],y from OpenGS PB into
sta [NRec],y NewLineGS PB,
sta [RRec],y ReadGS PB,
sta [CRec],y and CloseGS PB.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Set parameters in NewLineGS parameter block
;
lda #4 Number of parameters = 4.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [NRec]
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ldy #4 enableMask
lda #$7F = $7F (each input character
sta [NRec],y is ANDed with this mask)
iny2 numChars
lda #1 = 1 (number of newline chars
sta [NRec],y contained in newline char table)
iny2 newlineTable pointer
lda #NLTable = NLTable
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [NRec],y
iny2
lda #^NLTable
sta [NRec],y
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (NRec+2) NewLineGS(NRec)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (NRec)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph2 #$2011
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl $E100B0
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
bcc ok2 If there was an error,
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
tsx Save current stack pointer.
stx sptr
pha
pea 1
tsc
inc a
pea 0
pha
pea $0145
jsl $E100B0 Call ErrorGS to print a message
lda sptr Restore stack pointer.
tcs
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
jmp close_ex
;
; Set up ReadGS parameter block
;
ok2 lda #4 Number of parameters = 4
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [RRec]
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
tay dataBuffer (offset 4)
lda data = data
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [RRec],y
iny2
lda data+2
sta [RRec],y
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
iny2 requestCount (offset 4)
lda #999 = 999 (save 1 byte for \0)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [RRec],y
iny2
lda #0
sta [RRec],y
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Read lines from the exec file
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
ReadLoop anop
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (RRec+2) ReadGS(RRec)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (RRec)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph2 #$2012
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl $E100B0
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
bcs close_ex Check for error
ldy #12 Get transferCount
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
lda [RRec],y
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
tay Store null byte
lda #0 at end of buffer.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [data],y
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
lda varecho If $ECHO environment
beq noecho variable is set,
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ldx data+2
lda data
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
jsr puts print the line
jsr newline and a newline.
noecho lda [data] If first character
and #$FF in data buffer is
if2 @a,eq,#'#',ReadLoop "#", read next line.
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
* call execute: subroutine (4:cmdline,2:jobflag)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (data+2)
pei (data)
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
lda jobflag Remove "startup" flag bit
and #$7FFF from jobflag before passing it.
pha
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl execute
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
sta status
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
lda exit_requested If exit not requested,
bne close_ex
bra ReadLoop stay in read loop.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Close the exec file
;
close_ex anop
lda #1 Number of parameters = 1.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
sta [CRec]
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (CRec+2) CloseGS(CRec)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (CRec)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
ph2 #$2014
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl $E100B0
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
stz exit_requested Clear the "exit gsh" flag.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
done pei (CRec+2) Free the parameter blocks,
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (CRec)
jsl nullfree
pei (NRec+2)
pei (NRec)
jsl nullfree
pei (RRec+2)
pei (RRec)
jsl nullfree
pei (ORec+2)
pei (ORec)
jsl nullfree
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (data+2) data buffer,
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (data)
jsl nullfree
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei (ptr+2) and path name.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (ptr)
jsl nullfree
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
;
; Restore stack and return to caller
;
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
exit1a anop
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda space+1
sta end-2
lda space
sta end-3
pld
tsc
clc
adc #end-4
tcs
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
lda status Pass back status value.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
rtl
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
NLTable dc h'0d' Newline Table
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
;
; Name of argv parameter ($1 to $999) to be set; GS/OS string
;
pname ds 2 Length
pname_text dc c'000' Text (up to 3 digits)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
mutex key
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
END
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
**************************************************************************
*
* Execute a command line by calling command for each command in the buffer
*
**************************************************************************
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
execute START
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
exebuf equ 1
pipesem equ exebuf+4
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
ptr_glob equ pipesem+2
waitstatus equ ptr_glob+4
ptr_envexp equ waitstatus+2
pid equ ptr_envexp+4
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
term equ pid+2
cmdstrt equ term+2
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
cmdend equ cmdstrt+4
end_char equ cmdend+4
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
inquote equ end_char+2
space equ inquote+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jobflag equ space+3 ;set if not a job
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
cmdline equ jobflag+2
end equ cmdline+4
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
; subroutine (4:cmdline,2:jobflag),space
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
tsc
sec
sbc #space-1
tcs
phd
tcd
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; ---------------------------------------------------------------
; New code for gsh 2.0 (Dave Tribby): within execute, loop through
; the command line to separate each command and expand it separately,
; rather than passing multiple commands to the next level. This is
; done so that commands that depend upon each other will work, e.g.
; set testnum=2 ; echo "This is test $testnum"
;
; Find beginning and end of next command in the command line
;
lda cmdline Initialize cmdstrt to
sta cmdstrt beginning of cmdline.
lda cmdline+2
sta cmdstrt+2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
; Skip over leading whitespace
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
chkws lda [cmdstrt] Get next character.
and #$FF
jeq goback If at end of line, nothing to do!
cmp #" " If it's a space
beq bump_strt
cmp #9 or a tab,
bne found_start
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
bump_strt incad cmdstrt bump the start pointer
bra chkws and look for more whitespace.
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; Initialize pointer to end of command
found_start anop
; Scan the command line for next semi-colon. Need to account for
; quoted strings, backslash-escaped characters, and comments.
; Take advantage of 65816's BIT command for the "in quotes" flag. Use
; $8000 for single-quote bit and $4000 for double-quote bit. After
; bit inquote
; can do a bmi to check for $8000 set and bvs for $4000 set. Can
; check for either with lda inquote followed by beq or bne.
stz inquote Clear the "in quotes" flag.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
ldy #$FFFF Clear index into cmdstrt
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
find_end anop
iny
lda [cmdstrt],y Get next character.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
and #$FF If at end of string,
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
beq found_end all done looking.
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
; Check for special quote characters
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
cmp #"'"
beq s_quote
cmp #'"'
beq d_quote
cmp #'\'
beq b_slash
; "#" and ";" are special only if we aren't in a quoted string
ldx inquote
bne find_end
cmp #"#"
beq found_end
cmp #";"
beq found_end
; Not a special character. Keep looking.
bra find_end
; "'" found
s_quote bit inquote Check the "in quotes" flag.
bvs find_end In double quotes...keep looking.
lda inquote Toggle the single_quote
eor #$8000 bit in the "in quotes" flag.
sta inquote
bra find_end Keep looking.
; '"' found
d_quote bit inquote Check the "in quotes" flag.
bmi find_end In single quotes...keep looking.
lda inquote Toggle the double_quote
eor #$4000 bit in the "in quotes" flag.
sta inquote
bra find_end Keep looking.
; "\" found: accept next character without examining it in detail
b_slash iny Bump index.
lda [cmdstrt],y Get next character.
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
and #$FF If not at end of string,
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
bne find_end keep looking.
;
; Found a ";", "#", or null byte.
;
found_end anop
sta end_char Save the ending character.
tya Get number of bytes in command.
jeq goback If none, just skip it.
clc Add command length to
adc cmdstrt starting address to
sta cmdend get ending address.
lda #0
adc cmdstrt+2
sta cmdend+2
lda end_char Get the termination character.
beq expand If it's not a null byte,
lda #0
short m
sta [cmdend] store null byte in string.
long m
; Continue with command-line expansions for the single command
expand anop
; ---------------------------------------------------------------
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stz pipesem
stz waitstatus
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; Expand $ (environment variables) and ~ in the raw command line
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pei (cmdstrt+2)
pei (cmdstrt)
jsl expandvars
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
sta ptr_envexp
stx ptr_envexp+2
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
; Was there a variable error?
ora ptr_envexp+2
bne expglob
pha Put null pointer
pha on stack
jmp errexit and go to error exit.
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
; Expand wildcard characters in the modified command line
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
expglob phx
lda ptr_envexp
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pha
jsl glob
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
sta ptr_glob
stx ptr_glob+2
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
ldx ptr_envexp+2 Free memory allocated
lda ptr_envexp for env var expansion
jsl freemaxline
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
; Was there a globbing error?
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
lda ptr_glob
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
ora ptr_glob+2
bne expalias
pha Put null pointer
pha on stack
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
jmp errexit Go to error exit.
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
; Expand aliases in the modified command line (final expansion)
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
expalias ldx ptr_glob+2
phx
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
lda ptr_glob
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pha
jsl expandalias
sta exebuf
stx exebuf+2
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
phx Put exebuf on stack for
pha nullfree at endcmd.
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
ldx ptr_glob+2 Free memory allocated
lda ptr_glob for globbing expansion.
jsl freemaxline
; Was there a alias error?
lda exebuf
ora exebuf+2
jeq errexit
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
* >> Temporary debug code: echo expanded command if echo is set.
using vardata
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
ldy varecho
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
beq noecho
Changes for gsh version 2.0d10: Add check for buffer overflow when globbing, expanding variables, or inserting aliases (PR#110). Increase buffer size from 1024 to 4096. Increase buffer for reading commands from 256 to 1024 bytes in order to match the maximum length used when reading.
1999-02-08 17:26:51 +00:00
ldx exebuf+2
lda exebuf
jsr puts
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsr newline
noecho anop
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
* command subroutine (4:waitpid,2:inpipe,2:jobflag,2:inpipe2,
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
* 4:pipesem,4:stream,4:awaitstatus)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
loop pea 0 ;Bank 0 waitpid (hi)
tdc
clc
adc #pid
pha waitpid (low)
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pea 0 inpipe = 0
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
pei (jobflag) jobflag
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pea 0 inpipe2 = 0
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
pea 0 ;Bank 0 pipesem (hi)
tdc
clc
adc #pipesem
pha pipesem (low)
pea 0 ;Bank 0 stream (hi)
tdc
clc
adc #exebuf
pha stream (low)
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
pea 0 ;Bank 0 status (hi) [New: v2.0]
tdc
clc
adc #waitstatus
pha status (low)
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
jsl command
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
sta term Save result in term.
jmi errexit If < 0, all done.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
; If waitstatus != -1, executed command was a non-forked builtin,
; and waitstatus is its completion status.
lda waitstatus
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
cmp #-1
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
beq chkpid
jsr setstatus Set $status.
bra godonewait No need to wait.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
chkpid lda pid Get child process id.
beq godonewait If 0 (no fork), no need to wait.
cmp #-1 If -1 (error), all done.
jeq errexit
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
if2 term,eq,#T_AMP,jobwait If last token was "&"
lda jobflag or jobflag is set,
beq jobwait do more complicated wait.
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
;
; Uncomplicated wait: simply call wait() to get child's termination status
;
signal (#SIGINT,#0) Use default interrupt and
phx keyboard stop signal handlers,
pha and put address of current
signal (#SIGTSTP,#0) handlers on the stack.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
phx
pha
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
otherwait anop
ldx #0
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
clc
tdc
adc #waitstatus
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
wait @xa Wait for child completion.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
cmp pid
bne otherwait
lda waitstatus
and #$FF
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
cmp #$7F Check for WSTOPPED status.
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
beq otherwait Something else...wait again.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda waitstatus
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
jsr setstatus Set process's $status.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
pla Restore gsh's interrupt and
plx keyboard stop signal handlers.
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
signal (#SIGTSTP,@xa)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pla
plx
signal (#SIGINT,@xa)
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
godonewait bra donewait
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
;
; jobflag = 0: need more complicated wait for child
;
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
jobwait anop
signal (#SIGCHLD,#pchild) Ensure child sig handler active.
phx Save address of previous sig handler.
pha
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
kill (pid,#0) If child no longer exists
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
beq wait4job
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
pei pid
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
jsl removejentry Remove its pid from the list.
beq restoresigh Pid not in list: assume $status set.
ldx #0
clc
tdc
adc #waitstatus
wait @xa Get child completion status.
lda waitstatus
jsr setstatus Set process's $status.
bra restoresigh
;
; Child is active: wait for it to complete and get its status.
; NOTE: $status is set by SIGCHLD signal handler, pchild
;
wait4job jsl pwait Wait for child using pchild
restoresigh pla Restore previous child completion
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
plx signal handler.
signal (#SIGCHLD,@xa)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
;
; Done waiting for completion status. Check the token last parsed
; from the command line.
;
donewait if2 term,eq,#T_EOF,endcmd If last token was EOF
lda [exebuf] or if next character is \0,
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
and #$FF
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
beq endcmd all done with this command.
jmp loop Process the next command.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
;
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
; Underlying routine detected an error. Set waitstatus = -1
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
;
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
errexit lda #-1
sta waitstatus
Changes for gsh version 2.0d8: Fixed several mutual exclusion problems, including a particularly nasty one that would cause gsh to loop forever inside the memory manager. (You could identify this one by the "BRA (-23)" at the bottom of the infinite loop.) Fixed the string vector print routine to properly handle all numbers of entries in the hash table. Previously, it would always print duplicate entries if there were < 6 commands hashed, and would sometimes print duplicates (depending on previous contents of an internal table) for other numbers of commands. gsh would wait on background processes started from an exec file (executed, not sourced). Now the exec file does not wait on the process, but the background process is not associated with the parent shell after the exec file terminates. Made gsh globbing work more like csh: if none of the requested patterns are found, print "No match" and exit. At startup, if /etc/glogin, $HOME/glogin, or $HOME/gshrc does not exist, don't report a "file not found" error message. (PR#100)
1998-12-31 18:29:14 +00:00
jsr setstatus Set process's $status.
Changed many invocations from old shell interface routines (Read_Variable, Set_Variable, Export, etc.) to new ones (ReadVariableGS, SetGS, ExportGS, etc.) in many places; there are still a few more to change. This change removed the 256-character limit on strings retrieved by these routines, such as the value of environment variables. (PR # 9). At startup do not set $TERM to gnocon if it is already set. Removed the df command (from builtin.asm). Defined macro incad to increment a 4-byte address, checking for overflow; replaced instances of "inc ptr" with "incad ptr". Changed column offset table to use a 1-word rather than 1-byte entry. This resolves PR#14 (hash wouldn't print beyond first 256 filenames). Fixed defect in unalias (alias.asm) where the double quote portion of the scanner would look for a terminating single quote. This resolves PR#69. Changed default order for copying files in $PATH dirs into executable list, so earlier paths files are found first. Added environment variable flag $OLDPATHMODE to make gsh behave in the old (backwards order) way when necessary. Discard duplicate filenames when hashing. Fix PR#73: directory in $PATH with escaped space (\ ) is not searched.
1998-07-20 16:23:11 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
;
; We have completed processing of a command
;
endcmd jsl nullfree Free exebuf (addr on stack).
lda term Return -1 if error
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
bmi chk_cmd
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
lda waitstatus Get completion status, and convert
xba from wait() format to byte value.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
and #$FF
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
;
; Is there another command waiting in the buffer?
;
chk_cmd ldx end_char Was the original ending character
cpx #";" a semi-colon?
bne goback NO -- all done.
; Set cmdstrt to point to the character beyond cmdend
lda cmdend
ldx cmdend+2
ina
bne set_strt
inx
set_strt sta cmdstrt
stx cmdstrt+2
jmp chkws Parse the next command.
;
; All done.
;
goback tay Hold return status in Y-reg.
lda space+1 Set up stack
sta end-2 for rtl.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda space
sta end-3
pld
tsc
clc
adc #end-4
tcs
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
tya Restore return status from Y-reg.
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
rtl
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
END
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
**************************************************************************
*
* System() call vector
*
**************************************************************************
system START
retval equ 0
space equ retval+2
Added startup protocol as requested by Devin Reed (PR#78) and Steve Reeves (PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
subroutine (4:str),space ;need the phk/plb
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
lda str If user passes a
ora str+2 null pointer,
bne makecall
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
dec a return -1 to caller.
bra setrtn
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
;
Changes for gsh version 2.0d5: Add quotes around null parameters from the command line so they will be parsed properly (resolves PR#84). Output piped to an unfound command caused gsh to terminate, due to an interface change to the GNO 2.0.6 version of getpgrp(2): it now returns the process group of the caller. To get the process group number for the pid passed as a parameter pid, the call has to be made to _getpgrp(2). In addition to fixing invoke.asm, updates were also made in jobs.asm. When directory stack is full, pushd, reports a new error message: 'pushd: Directory stack full'. (Previously, 50 pushds would cause a crash.) When parameter passed to "pushd +n" is <= 0, report a new error message: 'pushd: Invalid number'. (Previously, tried to chdir to the parameter.) When a command appends to stderr (e.g., echo test >>&/tmp/err), stdin was closed, due to errappend being defined as pipefds+2 rather than pipefds+4 in cmd.asm. When there was an error reading stdin, gsh went into an infinite loop of beeping and requesting more input. Changed getchar (in stdio.asm) and GetCmdLine (in edit.asm) to report the error and terminate. Code in cmd.asm set and reset handler for signal SIGSTOP (17). This makes no sense, since there cannot be a handler for SIGSTOP. This was changed to set and reset signal SIGTSTP (18) since that handler is used by gsh. The error message "specify a command before redirecting" was never caught by the invoke() subroutine because the next higher routine, command(), checked for argv==0 before calling invoke(). The error message was moved into command().
1998-10-26 17:04:51 +00:00
; Let execute(str,1) do the work
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
;
makecall pei (str+2)
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (str)
Changes for gsh version 2.0d7: Fixed several memory leaks. Prefix command without any parameter (to list the prefixes) would cause memory corruption when prefix had been invoked previously with a parameter. Sourcing a command file from within an exec file could cause gsh to wait forever, depending upon the commands executed in the sourced file. All built-in commands return appropriate status: 1 for error, 0 for no error. Fixed several cases where incorrect value was set in $status. Added usage strings for tset, hash, commands, and history. Fixed memory corruption error when edit command had no parameters. When system() is called with pointer = NULL or with a command string that causes gsh to detect an error (e.g., incompatibility with | and <), return status of -1. In other cases, return process's status rather than always 0. System would crash when output from a non-forked command was piped to another process; for example clear | cat > /tmp/list
1998-12-21 23:57:08 +00:00
ph2 #1 jobflag=1
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsl execute
Major changes to gsh with this checkin: * When ~ is parsed and next character is a delimiter, make sure contents of expanded $HOME match the user's delimiter. * When wildcard patterns don't match, rather than terminating the command gsh now prints "No match: <pattern> ignored" and passes the command line minus the unmatched patterns on to be executed. * Modified echo command so it doesn't add a blank to the end. * Make "clear" and "source" built-ins non-forked commands. Unforking "source" allows prefixes to be set in files that are sourced. * Add loop to parse a single command (removing leading whitespace) before sending it off to be expanded and executed. Skip null lines and comments at this level. This allows later commands that depend upon variables set in the 1st command to work; e.g.: set t_num=1 ; echo "Test number $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
;
; Set status and go back to the caller
;
setrtn sta retval
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
return 2:retval
END
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