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gno/bin/gsh/shell.asm

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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 2.0d8: 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
* $Id: shell.asm,v 1.9 1998/12/31 18:29:14 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
**************************************************************************
*
* SHELL.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
*
* This is the main routines for the 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
* Note: text set up for tabs at col 16, 22, 41, 49, 57, 65
* | | | | | |
* ^ ^ ^ ^ ^ ^
**************************************************************************
*
* Interfaces defined in this file:
*
* shell subroutine (0:dummy)
* NOTE: gnoloop is an entry defined in shell.
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
* AppendHome subroutine (4:str)
* return 4:outPtr
*
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
* Dogshrc jsr with no parameters
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
*
* signal2 subroutine (4:fubar)
*
* signal18 subroutine (4:fubar)
*
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/shell.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
dummyshell 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
SIGTSTP gequ 18
SIGCHLD gequ 20
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
cmdbuflen gequ 1024
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
**************************************************************************
*
* shell: entry point for acting upon commands
*
**************************************************************************
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 on
shell start
case off
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
using global
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
using pdata
using HistoryData
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
using termdata
p equ 0 General pointer
cflag equ p+4 Flag: set when path converted
space equ cflag+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
subroutine (0:dummy),space
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
tsc Save stack pointer
sta cmdcontext in cmdcontext
tdc and direct page reg
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 cmddp in cmddp.
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
PushVariablesGS NullPB Save environment variables.
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
Open ttyopen Open tty,
bcc settty checking for error.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
ErrWriteCString #ttyerr
jmp quit
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
ttyerr dc c'gsh: Failed opening tty.',h'0d00'
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
settty mv2 ttyref,gshtty
tcnewpgrp gshtty
settpgrp gshtty
getpid
sta gshpid
jsr InitTerm
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 FastFlag If FastFlag is set,
bne fastskip1 skip copyright message.
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 gshpid Only print the copyright msg
cmp #2 if not using login
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
bne fastskip1
ldx #^gnostr
lda #gnostr
jsr puts
fastskip1 anop
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 up signal handlers
;
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
signal (#SIGINT,#signal2)
signal (#SIGTSTP,#signal18)
signal (#SIGCHLD,#pchild)
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 entry point for users calling system
;
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
setsystemvector #system
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
;
; Initialize some stuff
;
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
jsr initalias Set all AliasTable entries to 0.
jsr InitDStack Zero out directory stack.
jsr InitVars Set value of all env var flags.
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 $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
1998-09-08 16:53:14 +00:00
;
; Check for login shell (argv[0] starts with '-')
;
mv4 ~COMMANDLINE,p Copy commandline addr to dir page.
ldy #8 Skip over shell identifier
lda [p],y to get first char of
and #$FF command name.
cmp #'-' If not '-',
bne nologin_init skip over login initialization.
; Change ":" to " " in $PATH if it doesn't start with ":" or contain a " "
ph4 #pathname Get $PATH environment variable string
jsl getenv
sta p Save address of allocated buffer.
stx p+2 in direct page variable
ora p+2 If null,
beq nopathconv no need to convert
stz cflag Initialize conversion flag = false.
ldy #4 Index over GS/OS length fields.
short m Use 8-bit mode.
lda [p],y
beq endpathconv If null string, or
cmp #':' if first character is ':',
beq endpathconv don't do the conversion.
bumpit iny
lda [p],y
beq endpathconv If at end of string, all done.
cmp #' ' If $PATH contains a space,
bne chkcolon
stz cflag abort the conversion.
bra endpathconv
chkcolon cmp #':' If next character is ':',
bne bumpit
lda #' ' change it to ' ', and
sta [p],y
sta cflag set conversion flag = true.
bra bumpit
endpathconv long m Back to 16-bit mode.
lda cflag If there was no conversion,
beq freepath skip the setting of $PATH.
clc Address of $PATH as a GS/OS
lda p output string is 2 bytes
adc #2 beyond the input string
sta SetValue starting address.
lda p+2
adc #0
sta SetValue+2
SetGS SetPB Set $PATH to the converted value.
freepath ph4 p Free the $PATH C string.
jsl nullfree
nopathconv anop
; Read and execute /etc/glogin
ph4 #etcglogin path = "/etc/glogin"
lda #0
pha argc = 0
pha argv = NULL
pha
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 #$8000
pha jobflag = $8000
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 ShellExec
; Read and execute $HOME/glogin
jsr Doglogin
;
; Initialization that is not specific to login shells
;
nologin_init anop
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 FastFlag If fast startup flag isn't set,
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
bne fastskip2
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 $t_num" Also fixes problems seen when tab was first character of multiple lines. * Initialize environment variable flags at startup (for echo, nodirexec, nonewline, noglob, nobeep, pushdsilent, term, and ignoreeof). Set flag when env var is set in upper or lower case (formerly, only worked with lower case). * Lots of places two-word addresses are incremented using inc, without checking for overflow into the high-order word. As these are discovered, they are changed to use adc on both words. See file UpdateLog for detailed list of changes.
1998-06-30 17:26:04 +00:00
jsr InitHistory Init: historyFN->"$HOME/history",
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 ReadHistory read in history from disk,
jsr Dogshrc and read $HOME/gshrc.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsr newline
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
fastskip2 anop
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda didReadTerm
bne didit
jsr readterm
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
didit anop
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 dispose_hash Remove old table (if set in
jsl hashpath login files) and hash $PATH.
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
ld2 1,done_init Set initialization done flag.
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
;
; Check for command-line arguments -c and -e
;
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda CmdFlag
beq cmdskip
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
;
; The -c flag is set: execute remaining arguments as a command file and exit.
;
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
mv4 CmdArgV,p
ldy #2
lda [p],y
pha
lda [p]
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
ph2 CmdArgc argc
pei (p+2) argv
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pei (p)
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 jobflag = 0
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsl ShellExec
jmp done1
cmdskip lda ExecFlag
beq execskip
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
;
; The -e flag is set: execute remaining arguments as a command and exit.
;
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 ExecCmd cmdline
ph2 #0 jobflag = 0
jsl execute
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 done1
;
; Parameter block for shell SetGS calls (p 427 in ORCA/M manual)
;
SetPB dc i2'3' pCount
dc i4'pathname' Name (pointer to GS/OS string)
SetValue ds 4 Value (pointer to GS/OS string)
dc i2'1' Export flag
pathname gsstr 'path' GS/OS string
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
etcglogin dc c'/etc/glogin',h'00'
execskip anop
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
****************************************************************
*
* Main loop for reading and executing commands
*
****************************************************************
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stz lastabort
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
gnoloop entry
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
;
; Set the fundamental registers.
;
phk Copy Program Bank register
plb into Data Bank register.
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 cmdcontext Set Stack Pointer and
tcs Direct Page register
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 cmddp to values saved when
tcd entering shell.
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 WritePrompt Print prompt.
jsr GetCmdLine Get response.
bcs done
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsr newline
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
lda cmdlen Check for empty string.
beq gnoloop
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
jsr cursoron
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsr newlineX
jsr flush
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
ph4 #cmdline execute(cmdline,0)
ph2 #0 jobflag = 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
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
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 exit_requested
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
bne done1
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 newlineX
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stz lastabort
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 gnoloop
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
;
; shut down gsh
;
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 jsr newline
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsr newlineX
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
done1 ora2 pjoblist,pjoblist+2,@a
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
beq done2
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 lastabort
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
bne donekiller
inc lastabort
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
stz exit_requested
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
ldx #^stopstr Print message:
lda #stopstr "There are stopped jobs"
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
jsr puts
jsr newlineX
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
bra gnoloop Continue getting commands.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
donekiller jsl jobkiller
done2 lda FastFlag
bne fastskip5
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 SaveHistory
fastskip5 jsr dispose_hash
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
quit PopVariablesGS NullPB
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
Quit QuitParm
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
QuitParm dc i'0'
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
; Null parameter block used for shell calls PushVariables
; (ORCA/M manual p.420) and PopVariablesGS (p. 419)
NullPB dc i2'0' pCount
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
gnostr dc h'0d',c'GNO/Shell 2.0.6',h'0d'
dc c'Copyright 1991-1993, Procyon, Inc. & Tim Meekins. '
dc c'ALL RIGHTS RESERVED',h'0d'
dc h'0d00'
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
stopstr dc c'gsh: There are stopped jobs.',h'0d00'
ttyopen dc i2'2'
ttyref dc i2'0'
dc i4'ttyname'
ttyname gsstr '.tty'
exitstr dc c'000000',h'0d00'
lastabort ds 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
END
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;=========================================================================
;
; Interpret the login file (gshrc).
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
; If $HOME is set, we presume the gshrc file is there. If not,
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
; or if an error occurs getting the $HOME variable, we use
; @:gshrc.
;
;=========================================================================
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
Dogshrc START
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
ph4 #gshrcName
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 doit
; Alternate entry point: execute $HOME/glogin
Doglogin ENTRY
ph4 #gloginName
doit jsl AppendHome
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
phx Save pointer to GS/OS input
pha string for later.
clc Adjust the pointer
adc #2 to skip the length word
bcc no_ovf so it's a C string.
inx
no_ovf phx
pha
* ShellExec subroutine (4:path,2:argc,4:argv,2:jobflag)
; (ptr to $HOME/gshrc is on stack)
lda #0
pha argc = 0
pha argv = NULL
pha
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 #$8000
pha jobflag = $8000
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
jsl ShellExec
; Dispose $HOME/gshrc string
pla Get address of
plx GS/OS input string.
sec Subtract two bytes to get
sbc #2 addr of original output buffer.
bcs no_undf
dex
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
no_undf phx
pha
jsl nullfree
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
rts
gshrcName dc c'/gshrc',h'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
gloginName dc c'/glogin',h'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
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
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
;=========================================================================
;
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
; Append a C string to the value of the $HOME variable. If $HOME is
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
; not set, then it appends the C string to the string '@/'. Returns
; a pointer to a GS/OS input string.
;
;=========================================================================
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
AppendHome START
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
outPtr equ 0 Pointer into allocated memory
str_len equ outPtr+4 Length of string parameter
buf_len equ str_len+2 Size of GS/OS buffer
space equ buf_len+2
subroutine (4:str),space
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
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
lock mutex
;
; Get the variable's length using ReadVariableGS
;
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
ld4 TempResultBuf,RVresult Use temporary result buf.
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
ReadVariableGS ReadVar Get length.
;
; Allocate memory for value string
;
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
pei (str+2) Get length of
pei (str) string to be
jsr cstrlen appended.
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
sta str_len
lda TempRBlen Get length of value.
bne notnull If 0,
inc a increment because "@" will be used.
notnull inc2 a Add 4 bytes for result buf len words.
inc2 a
clc Add length of string parameter.
adc str_len
sta buf_len Save result buf length.
inc a Add 1 more for terminating null byte.
pea 0
pha
~NEW Request the memory.
sta RVresult Store address in ReadVariable
stx RVresult+2 parameter block and
sta outPtr direct page pointer.
stx outPtr+2
ora outPtr+2 If address == NULL,
beq exit return NULL to user.
lda buf_len Store result buffer length
sta [outPtr] at beginning of buf.
;
; Read the full value into the allocated memory
;
ReadVariableGS ReadVar ReadVariable $HOME
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
bcs doAtSign If error, use @/
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
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
ldy #2 Get length of
lda [outPtr],y GS/OS string.
beq doAtSign If $HOME not defined, use "@".
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
clc
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
adc #4 Turn into a c-string
tay by storing a 0 byte
short m after the last $HOME
lda #0 character.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
sta [outPtr],y
long m
bra doAppend
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
;
; $HOME is null string or not defined. Use @
;
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
doAtSign lda atSign
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 #4
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
sta [outPtr],y
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
lda #1 Set GS/OS 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
ldy #2 string length word
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
sta [outPtr],y to 1.
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
doAppend anop
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
ldy #4 Start index beyond length words.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
short m
lp lda [outPtr],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
beq noSep
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
cmp #':'
beq foundSep
cmp #'/'
beq foundSep
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
iny
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
bra lp
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
noSep lda #':' No separator found; use ":".
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
foundSep sta [str] Store sep at start of appended string.
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
long m
pei (str+2)
pei (str)
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
ldx outPtr+2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
lda outPtr
clc
adc #4
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
bcc pushptr
inx
pushptr phx
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
pha
case on
jsl strcat
case off
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
clc Add 2 bytes to address of
lda outPtr GS/OS output buffer to
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
adc #2 get address of GS/OS
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
bcc no_ovf input string.
inc outPtr+2
no_ovf sta outPtr
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 [outPtr] Adjust string length
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
clc to include appended
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
adc str_len string (parameter).
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 [outPtr]
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
;
; NOTE: The returned value points to a GS/OS string, two bytes offset
; from the allocated memory for a GS/OS result buffer. When the
; memory is deallocated, the address must be adjusted back.
;
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
exit unlock mutex
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
return 4:outPtr
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
mutex key
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
atSign dc c'@',i1'0'
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
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
;
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
; Parameter block for Shell call ReadVariable (p 423 in ORCA/M reference)
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
;
ReadVar anop
dc i2'3' pCount
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
dc a4'home' address of variable's name
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
RVresult ds 4 GS/OS Output buffer ptr
ds 2 export flag (returned)
;
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
; GS/OS result buffer for getting the full length of the HOME env var.
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
;
TempResultBuf dc i2'5' Only five bytes total.
TempRBlen ds 2 Value's length returned here.
ds 1 Only 1 byte for value.
;
; "HOME" as a GS/OS string
;
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
home gsstr 'HOME'
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
END
;=========================================================================
;
; GLOBAL 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
global DATA
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
ID ds 2
GSOSDP ds 2
cmdloc ds 2
cmdlen ds 2
cmdline ds cmdbuflen
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
buffer ds 256
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
wordlen ds 2
wordbuf ds 256
nummatch ds 2
matchbuf ds 512*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
cmdcontext ds 2
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
cmddp ds 2
gshtty ds 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
gshpid ds 2
exit_requested dc i'0' ;!=0 if exit
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
signalled dc i'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
done_init dc i2'0' 0 until init is complete
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
FastFlag dc i'0'
CmdFlag dc i'0'
CmdArgV ds 4
CmdArgC ds 2
ExecFlag dc i'0'
ExecCmd ds 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
END
Initial checkin of gsh v1.1 as provided by Tony Diaz.
1997-11-18 05:31:00 +00:00
;=========================================================================
;
; SIGINT handler when typed at command-line
;
;=========================================================================
signal2 START
using global
subroutine (4:fubar),0
WriteCString #msg
inc signalled
; ld2 $80,$E0C000
return
msg dc c'^C',h'0d0a00'
END
;=========================================================================
;
; SIGTSTP handler when typed at command-line
;
;=========================================================================
signal18 START
using global
subroutine (4:fubar),0
WriteCString #msg
inc signalled
; ld2 $80,$E0C000
return
msg dc c'^Z',h'0d0a00'
END
Reference in New Issue Copy Permalink