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