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bash/CWRU/old-changelogs/CWRU.chlog.v4
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This file documents changes to CWRU bash following its first network-wide
release.
3/15
----
Makefile
- change the declaration of $CPP_ARGS so that CPP_CC can have
embedded blanks, by adding quotes
bashline.c
- some cosmetic changes to the FIGNORE support functions
glob.c
- don't define USGr3 if it's already defined
variables.c
- a declaration for the argument to put_command_name_into_env was
missing
builtins.c
- only print the command name in builtin_error if this_command_name
is non-null
expr.c
- catch something % 0 as an error
subst.c
- make sure this_command_name is set to NULL before calling evalexp,
because evalexp uses builtin_error
3/18
----
variables.c
- changed getenv() to search the inherited environment if the hash
table of shell variables does not exist or has not been created
3/19
----
subst.c
- when doing command substitution, strip only the trailing newlines.
This is in accordance with Posix.2.
general.c
- strip_trailing () has aquired a new flag telling whether to strip
all white space or just trailing newlines.
variables.c
- since some places in the code rely on bind_variable returning a
valid value, the dynamic variable assignment functions have been
changed to take a pointer to themselves as the first parameter:
return ((*(entry->assign_func)) (entry, value));
and then return that value after doing whatever they need to
3/30
----
bashline.c
- disabled builtin commands should not be returned to the readline
completion functions as legal command alternatives
flags.c
- do not redefine NULL; check only after including all needed
.h files
nojobs.c
- fix unconditional reference to status.w_*
- fix typo after call to WIFCORED in wait_for
readline/readline.c
- make sure all calls to BSD signal mechanism are protected by test
for HAVE_BSD_SIGNALS define
- make sure declaration of struct ltchars variable is protected by
test for definition of TIOCGLTC
- change #include file from sys/errno.h to errno.h
- added a new function rl_stop_output (), the non-emacs version of
^S, to go with rl_restart_output. Haven't done anything with it
yet.
- added Posix support in the form of tcflow() calls to
rl_restart_output and rl_stop_output
readline/readline.h
- change the declaration of rl_filename_completion_ignore_function
to extern. It was coming up as multiply defined on some systems
siglist.c
- change #include file from sys/signal.h to signal.h
- some systems define _NSIG but not NSIG. Define NSIG in terms of
_NSIG on those systems
ulimit.c
- change #include file from sys/errno.h to errno.h
subst.c
- string_extract_double_quoted() needs to ignore "" inside `` pair,
but this code should be executed only if the ` is not backslash-
escaped.
- changed sv_uids() to give UID, EUID the integer attribute
automatically
machines.h
- check for the DG AViiON defining either __DGUX__ or DGUX, make
sure DGUX is defined in any case
trap.c
- change run_pending_traps to loop from 1 to NSIG instead of 0 to
NSIG
execute_cmd.c
- For a command run explicitly in a subshell via (), run_exit_trap ()
needs to be called after that command has executed for /bin/sh
compatibility
variables.c
- make $PPID have the integer attribute when it is intialized
4/2
---
subst.c
- make string_extract_double_quoted handle backslash-escaped
` correctly when parsing a `` pair
4/3
---
jobs.c
- make sure job_control is set to 1 before the first time
give_terminal_to is called, so that it does its job and the
process groups are correct.
subst.c
- make string_extract_double_quoted() not turn \\ into \ inside
quoted strings. The translations will be taken care of later.
nojobs.c
- make sure we get the tty state in initialize_jobs(), and don't
try to set it in set_tty_state until we know we have saved
valid settings.
4/6
---
shell.c, execute_cmd.c, shell.h
- shell now exits with status 127 when asked to execute a binary
file as a shell script
builtins.c
- `local' is once again an error outside a function
- `trap' now formats output differently when given no arguments;
the new format is suitable for feeding back to the shell as
input to `trap'
- cleaned up a contradiction in the help text for the `export'
builtin
- `export' and `readonly' now accept a -p flag for Posix.2 compliance
that acts the same as if no flags had been specified, and take a
`--' option to disable further option processing
- `unset' takes a `--' argument to disable further option
processing
- when given the -f flag, unset will now try to unset a variable
if no function is found for the name supplied
- `kill' now takes a -s signal argument as equivalent to -signal
- `kill' takes a `--' argument to disable further option processing,
since a negative number may be used to denote a process group
- `kill -l' now takes arguments and lists the names for individual
signals by number. If the number given as argument is > 128, it
is assumed to be an exit status, and 128 is subtracted before
further processing
builtins.c, variables.c
- `set +' is no more; print_vars_no_values() is no longer needed
flags.c, builtins.c
- `set -C' is now an alias for noclobber
trap.c
- SIGNULL is no longer a valid name for signal 0
getopts.c, subst.c
- resetopts () --> getopts_reset ()
- rewrote getopt() per Brian's request
builtins.c
- `return' is now valid when executing a file with the `.' builtin
and causes the execution to be aborted
execute_cmd.c
- file descriptors > 2 manipulated via `exec' are no longer set to
close-on-exec
4/8
---
cpp-Makefile
- fixed the bad definition of RANLIB if RANLIB_LOCATION was defined
- pass the correct definition of ranlib through to the make of
readline
readline/readline.c
- make sure some defaults for screen size are defined in the case
of a dumb terminal
builtins.c
- `return' now works for aborting files executed with the `.'
builtin
parse.y
- a `"' before a closing ) in a $( ) construct within double
quotes is no longer an error
subst.c
- string_extract_double_quoted now passes everything between $(
and ) through verbatim, without scanning it for double quotes.
This way, `echo "$(echo "*")"' will echo `*' like it should.
documentation/bash.1
- updated to reflect the changes from Posix.2 draft 11.
4/10
----
execute_cmd.c, builtins.c
- changed some instances of absolute_pathname to absolute_program
(like doing PATH, CDPATH searching, the `type' builtin, and
filename hashing)
readline/readline.c
- made rl_deprep_terminal do a little sanity checking on the
values in otio that it is restoring
Minor update of tar files available for FTP from CWRU