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)
out of 13/RInclude instead of /src/gno/build.tools. This implies that
builddate.rez has to have been previously installed in 13/RInclude; this
is done by the 'install' and 'release' targets in /src/gno/build.tools.
- initial checkin. Needed for 'install' and 'release' targets.
dmake.startup, startup.mk:
- When dmake finds a startup.mk in the current directory, it
parses that file after the system startup.mk. In this case they're
one and the same. While this shouldn't be a problem, it's
causing dmake to crash. See PR#99.
The workaround was to rename startup.mk in this directory to
dmake startup. It is renamed back to its proper name in the
recipes to the install and release targets.
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
Fixed defect introduced in version 2.0d5: when a background job completed
while gsh was waiting for command line input, gsh would print a bogus error
message and quit.
from both Phil Vandry's v1 syslogd (which is part of init), and the
BSD version. It still needs some work, but it can log to a file
or to console at the moment.
Until syslogd v1 is removed from init, you should ensure that you're
not logging to the same file from both versions of syslogd.
- Added the sprintmt and vsprintmt routines. These are thread
safe variants of the sprintf and vsprintf routines. Note that
they don't support as many formatting options as stdio does.
gnomisc.c:
- Define the global variable "__progname". This is initially
set to "(unknown)", but is properly initialized to the return
value of __prognameGS() the first time that function is called.
- added thread safe functions syslogmt and vsyslogmt.
- minor changes to sendPort to make it thread safe
- moved variadic wrappers to the end of the file so that the
command line optimize/debug levels get propogated through
the rest of the source during compilation.
- changed the mechanism by which sendPort waits for it's buffer
to be released by syslogd
- since ctime(3) is not thread safe, add a flag to the
SyslogDataBuffer_t that tells syslogd(8) to add the appropriate
time stamp. This is easier than implementing thread safe
versions of ctime and localtime.
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().
Initial checkin for sprintmt(3) and vsprintmt(3) documentation.
syslog.3:
Add descriptions of syslogmt(3) and vsyslogmt(3), which are thread-
safe variants with more limited format specifiers.
progname.3:
Added description of the "__progname" variable. This in effect
exposes the cache value used by __prognameGS(). It was necessary
for the proper operation of the thread-safe syslog routines.
The "up" link in the reference manuals was broken; the -up_title
flag to tex2html was missing.
intro.tex:
- reworked Overview chapter. Replaced "The GNO/ME Package" with
"Documentation Roadmap", updated "Obtaining GNO", etc.
- Added section to "Installing v2.0.6" about how to obtain source
by anonymous cvs and anonymous ftp.
- publish date changed
- updated copyright dates
refs.html:
- minor grammatical changes
(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.
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.
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.
- fixed a bug introduced in 1.1 where getting an error while
reading the calandar file could cause an infinite loop
- added "ChangeLog" comments for all versions
- added stack checking
- eliminated "pragma stacksize" from the source file; it was too
small (was 512 bytes, currently using 862 bytes) and overriding
the value given on the command line during the GNO base build
process
README, calendar.info:
- Moved the information in these files to the man page.
Makefile, calendar.rez:
- initial checkin
calendar.1:
- cleaned it up a bit and made it conform to the GNO base builds
- added an example
Updates for v1.1 as submitted by Marlin Allred. His comments:
"I compiled calendar with the 2.0.6 libraries and fixed it so
the date could be put anywhere on the line. I also fix[ed] the
program so that tomorrow's and Monday's activity was also being
listed. The man page for calendar was also updated. [...] I did
not update the source file to indicate the changes made."
calendar.desc:
Updated for v1.1.
* 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.
Changed some '0' constants to '0L'. Probably not necessary, but
consider it paranoia from earlier ORCA/C bugs.
sys/syslog.h:
These changes reflect the new implementation for syslog(3) and
friends. The biggest change is that the facility/priority (which
is encoded as a single number) requires 32 bits, so has been moved
from an int value to a long value.
This means that any programs using syslog(3) cannot merely be
relinked, but will need to be recompiled.
This file also contained various constants coded as bitshift
values, like (4<<3). ORCA/C can't handle this in the context
of a constant initializer, so these constants have been resolved
and changed to single hex values. The originals are left in
comments.
sys/uio.h:
- #include <sys/types.h> if it has not already been done.
- change the return value of readv/writev back from size_t to
ssize_t. I don't recall why they were originally changed,
given that they weren't implemented and BSD uses ssize_t.
Did changes for the initial GNO version. This includes:
- prototyping;
- changing the facility/priority value from an int to a
long (we need 32 bits for all the information);
- stack checking code; and
- after doing a freopen() of stdin, change it back to text mode.
Makefile, logger.rez, logger.desc:
New files.
tribby
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