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Jari Aalto 2002-07-17 14:10:11 +00:00
commit 7117c2d221
362 changed files with 34387 additions and 15063 deletions
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45
AUTHORS
View file

@ -406,3 +406,48 @@ tests/misc/sigint.t3.sh Chet Ramey
tests/misc/sigint.t4.sh Chet Ramey
tests/misc/test-minus-e.1 Chet Ramey
tests/misc/test-minus-e.2 Chet Ramey
lib/sh/Makefile.in Chet Ramey
lib/sh/clktck.c Chet Ramey
lib/sh/clock.c Chet Ramey
lib/sh/fmtullong.c Chet Ramey
lib/sh/fmtulong.c Chet Ramey
lib/sh/getcwd.c Chet Ramey, Roland McGrath
lib/sh/getenv.c Chet Ramey, Brian Fox
lib/sh/inet_aton.c Chet Ramey, Ulrich Drepper, Paul Vixie
lib/sh/itos.c Chet Ramey
lib/sh/mailstat.c Chet Ramey
lib/sh/makepath.c Chet Ramey
lib/sh/mktime.c Chet Ramey, Paul Eggert
lib/sh/netconn.c Chet Ramey
lib/sh/netopen.c Chet Ramey
lib/sh/oslib.c Chet Ramey, Brian Fox
lib/sh/pathcanon.c Chet Ramey
lib/sh/pathphys.c Chet Ramey
lib/sh/rename.c Chet Ramey
lib/sh/setlinebuf.c Chet Ramey, Brian Fox
lib/sh/shquote.c Chet Ramey
lib/sh/shtty.c Chet Ramey
lib/sh/snprintf.c Chet Ramey, Unknown
lib/sh/spell.c Chet Ramey
lib/sh/strcasecmp.c Chet Ramey, Brian Fox
lib/sh/strerror.c Chet Ramey, Brian Fox
lib/sh/strftime.c Arnold Robbins
lib/sh/strindex.c Chet Ramey
lib/sh/stringlist.c Chet Ramey
lib/sh/stringvec.c Chet Ramey
lib/sh/strpbrk.c Roland McGrath
lib/sh/strtod.c Chet Ramey, Roland McGrath
lib/sh/strtoimax.c Chet Ramey, Paul Eggert
lib/sh/strtol.c Chet Ramey, Paul Eggert
lib/sh/strtoll.c Chet Ramey, Paul Eggert
lib/sh/strtoul.c Chet Ramey, Paul Eggert
lib/sh/strtoull.c Chet Ramey, Paul Eggert
lib/sh/strtoumax.c Chet Ramey, Paul Eggert
lib/sh/strtrans.c Chet Ramey
lib/sh/times.c Chet Ramey, Brian Fox
lib/sh/timeval.c Chet Ramey
lib/sh/tmpfile.c Chet Ramey
lib/sh/vprint.c Chet Ramey, Brian Fox
lib/sh/xstrchr.c Chet Ramey, Mitsuru Chinen
lib/sh/zread.c Chet Ramey
lib/sh/zwrite.c Chet Ramey

461
CHANGES
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@ -1,3 +1,464 @@
This document details the changes between this version, bash-2.05b-release,
and the previous version, bash-2.05b-beta2.
1. Changes to Bash
a. Fixed an off-by-one error in the function that translates job
specifications.
b. Note that we're running under Emacs and disable line editing if
$EMACS == `t'.
------------------------------------------------------------------------------
This document details the changes between this version, bash-2.05b-beta2,
and the previous version, bash-2.05b-beta1.
1. Changes to Bash
a. Fixed the /= and %= arithmetic operators to catch division by zero.
b. Added putenv, setenv, unsetenv to getenv replacement for completeness.
c. Fixed a bug that could cause the -O expand_aliases invocation option
to not take effect.
d. Fixed a problem with process substitution that resulted in incorrect
behavior when the number of process substitutions in an individual
command approached 64.
2. Changes to Readline
a. Fixed a problem with backward-char-search when on a system with support
for multibyte characters when running in a locale without any multibyte
characters.
------------------------------------------------------------------------------
This document details the changes between this version, bash-2.05b-beta1,
and the previous version, bash-2.05b-alpha1.
1. Changes to Bash
a. Fixed a problem when parsing a POSIX.2 character class name while
evaluating a bracket expression containing multibyte characters.
b. Changed the help text for `bind' to make it clear that any command
that may be placed in ~/.inputrc is a valid argument to `bind'.
c. Added `help' builtin entries for `((', `[[', and arithmetic for.
d. malloc updated again:
o slightly better overflow and underflow detection by putting the
chunk size at the beginning and end of the chunk and making
sure they match in free/realloc
o partial page allocated to make things page-aligned no longer
completely wasted
o block coalescing now enabled by default
o splitting and coalescing enabled for 32-byte chunks, the most
common size requested
o fixed a problem that resulted in spurious underflow messages and
aborts
o bin sizes are precomputed and stored in an array rather than
being computed at run time
o malloc will return memory blocks back to the system if the block
being freed is at the top of the heap and of sufficient size to
make it worthwhile
o malloc/free/realloc now inline memset instead of calling the
libc function; uses Duff's device for good performance
e. Check for getservent(); make the service name completion code dependent
on its presence.
f. Changed the readline callback that executes a command bound to a key
sequence to not save the executed command on the history list and to
save and restore the parsing state.
g. Changes to lib/sh/snprintf.c: fixed some bugs in the `g' and `G'
floating point format display; implemented the "'" flag character
that turns on thousands' grouping; fixed behavior on systems where
MB_CUR_MAX does not evaluate to a constant.
h. The `unset' builtin no longer returns a failure status when asked to
unset a previously-unset variable or function.
i. Changes to the build system to make it easier to cross-compile bash
for different systems.
j. Added `,' to the characters that are backslash-escaped during filename
completion, to avoid problems with complete-into-braces and RCS filenames
containing commas.
k. Some changes to the multibyte character support code to avoid many calls
to strlen().
l. Bash now correctly honors setting LANG to some value when LC_ALL does not
already have a value.
m. Fixed a bug that could cause SIGSEGV when processing nested traps with
trap handlers.
n. The `source/.' builtin now restores the positional parameters when it
returns unless they were changed using the `set' builtin during the file's
execution.
o. Fixed a bug that caused a syntax error when a command was terminated by
EOF.
2. New Features in Bash
a. There is now support for placing the long help text into separate files
installed into ${datadir}/bash. Not enabled by default; can be turned
on with `--enable-separate-helpfiles' option to configure.
b. All builtins that take operands accept a `--' pseudo-option, except
`echo'.
c. The `echo' builtin now accepts \0xxx (zero to three octal digits following
the `0') in addition to \xxx (one to three octal digits) for SUSv3/XPG6/
POSIX.1-2001 compliance.
3. Changes to Readline
a. Fixed a small problem in _rl_insert_char with multibyte characters.
b. Fixes from IBM for line wrapping problems when using multibyte characters.
c. Fixed a problem which caused the display to be messed up when the last
line of a multi-line prompt (possibly containing invisible characters)
was longer than the screen width.
d. Fixed a problem with the vi-mode `r' command that ocurred on systems with
support for multibyte characters when running in a locale without any
multibyte characters.
------------------------------------------------------------------------------
This document details the changes between this version, bash-2.05b-alpha1,
and the previous version, bash-2.05a-release.
1. Changes to Bash
a. Some changes to work around inlining differences between compilers.
b. Added more prototypes for internal shell typedefs, to catch argument
passing errors when using pointers to functions.
c. The `cd' builtin now fails in posix mode when a valid directory cannot be
constructed from a relative pathname argument and the $PWD using pathname
canonicalization, and the -P option has not been supplied. Previously,
the shell would attempt to use what the user typed, leading to weird
values for $PWD and discrepancies between the value of $PWD and the
actual working directory.
d. The `cd' builtin now resets $PWD when canonicalization fails but a chdir
to the pathname passed as an argument succeeds (when not in posix mode).
e. The `fc' builtin has been fixed, as POSIX requires, to use the closest
history position in range when given an out-of-range argument.
f. The history file loading code was changed to allow lines to be saved in
the history list from the shell startup files.
g. `history -s args' now works bettern in compound commands.
h. The tilde expansion code was fixed to better recognize when it's being
invoked in an assignment context, which enables expansion after `='
and `:'.
i. Fixed the command name completion code so a slash is no longer appended
to a single match if there happens to be a directory with that name in
$PWD.
j. Fixed compound array assignment to no longer perform alias expansion, to
allow reserved words as array members, and to not produce extra output
when the `-v' option had been enabled.
k. Fixed the programmable completion code to better handle newlines in lists
of possible completions (e.g., `complete -W').
l. Removed the reserved words from the `bash-builtins' manual page.
m. Parser error reporting now attempts to do a better job of identifying the
token in error rather than doing straight textual analysis.
n. Fixes for Inf/NaN, locales, wide/multibyte characters and zero-length
arguments in the library snprintf(3) replacement.
o. `read -e' no longer does command name completion on the first word on
the line being read.
p. `select' now returns failure if the read of the user's selection fails.
q. Fixed a bug that could cause a core dump when setting $PIPESTATUS.
r. Fixes to not allocate so many job slots when the shell is running a loop
with job control enabled in a subshell of an interactive shell.
s. Fixed a bug in the trap code that caused traps to be inherited by
command substitutions in some cases.
t. Fixed a bug that could cause alias expansion to inappropriately expand
the word following the alias.
u. Fixed a bug in the `kill' builtin that mishandled negative pid arguments.
v. The parser is less lenient when parsing assignment statements where the
characters before the `=' don't comprise a valid identifier.
w. The arithmetic expression evaluation code now honors the setting of the
`-u' option when expanding variable names.
x. Fixed the arithmetic evaluation code to allow array subscripts to be
assigned (`let b[7]=42') and auto-incremented and auto-decremented
(e.g., b[7]++).
y. Reimplemented the existing prompt string date and time expansions using
strftime(3), which changed the output of \@ in some locales.
z. Fixed a bug that could cause a core dump when a special shell variable
(like RANDOM) was converted to an array with a variable assignment.
aa. Fixed a bug that would reset the handler for a signal the user had
trapped to a function that would exit the shell when setting the exit
trap in a non-interactive shell.
bb. Changed the execve(2) wrapper code to check whether or not a failing
command is a directory before looking at whether a `#!' interpreter
failed for some reason.
cc. Fixed a bug in the command printing code so it no longer inserts a `;'
after a newline, which produces a syntax error when reused as input.
dd. The code that expands $PS4 no longer inherits the `-x' flag.
ee. The bash-specific completion functions may now take advantage of the
double-TAB and M-? features of the standard readline completion
functions.
ff. The mail checking code no longer prints a message if the checked file's
size has not increased, even if the access time is less than the modification time.
gg. Rewrote the variable symbol table code: there is now a stack of
contexts, each possibly including a separate symbol table; there can
be more than one temporary environment supplied to nested invocations
of `./source'; the temporary environments no longer require so much
special-case code; shell functions now handle the temporary environment
and local variables more consistently; function scope exit is faster now
that the entire symbol table does not have to be traversed to dispose of
local variables; it is now easier to push vars from the temporary
environment to the shell's variable table in posix mode; some duplicated
code has been removed.
hh. Regularized the error message printing code; builtin_error is now called
more consistently, and common error message strings are handled by small
functions. This should make eventual message translation easier.
ii. Error messages now include the line number in a script when the shell
is not interactive.
jj. Array subscript expansion now takes place even when the array variable is
unset, so side effects will take place.
kk. Fixed a bug in the SICGHLD child-reaping code so that it won't find
jobs already marked as terminated if the OS reuses pids quickly enough.
ll. Fixed a bug that could cause a signal to not interrupt the `wait'
builtin while it was waiting for a background process to terminate.
mm. A couple of changes to make it easier for multiple shells to share history
files using `history -n', `history -r', and `history -w'.
nn. The `getopts' builtin always increments OPTIND to point to the next
option to be handled when an option is returned, whether it's valid
or not, as POSIX 1003.x-2001 requires.
oo. Changed some parts of the expansion code to avoid allocating and
immediately freeing memory without using the results for anything.
pp. The shell now keeps track of $IFS internally, updating its internal map
each time the variable is assigned a new value (or at local scope exit).
This saves thousands of hash lookups for IFS, which, while individually
cheap, add up.
qq. Rewrote the hash table code: searching and insertion are much faster now,
and it uses a better string hashing function; augmented the function
interface to simplify other parts of the code and remove duplicated code
rr. The shell now uses a simple, generic `object cache' for allocating and
caching words and word lists, which were the major users of
malloc/free.
ss. Fixed the assignment statement parsing code to allow whitespace and
newlines in subscripts when performing array element assignment.
tt. The shell now issues many fewer calls to sigprocmask and other signal
masking system calls.
uu. Fixed the `test' and conditional command file comparison operators to
work right when one file has a non-positive timestamp and the other
does not exist.
vv. Fixed some cases where the special characters '\001' and '\177' in the
values of variables or positional parameters caused incorrect expansion
results.
2. Changes to Readline
a. Fixed output of comment-begin character when listing variable values.
b. Added some default key bindings for common escape sequences produced by
HOME and END keys.
c. Fixed the mark handling code to be more emacs-compatible.
d. A bug was fixed in the code that prints possible completions to keep it
from printing empty strings in certain circumstances.
e. Change the key sequence printing code to print ESC as M\- if ESC is a
meta-prefix character -- it's easier for users to understand than \e.
f. Fixed unstifle_history() to return values that match the documentation.
g. Fixed the event loop (rl_event_hook) to handle the case where the input
file descriptor is invalidated.
h. Fixed the prompt display code to work better when the application has a
custom redisplay function.
i. Changes to make reading and writing the history file a little faster, and
to cope with huge history files without calling abort(3) from xmalloc.
j. The vi-mode `S' and `s' commands are now undone correctly.
3. New Features in Bash
a. If set, TMOUT is the default timeout for the `read' builtin.
b. `type' has two new options: `-f' suppresses shell function lookup, and
`-P' forces a $PATH search.
c. New code to handle multibyte characters.
d. `select' was changed to be more ksh-compatible, in that the menu is
reprinted each time through the loop only if REPLY is set to NULL.
The previous behavior is available as a compile-time option.
e. `complete -d' and `complete -o dirnames' now force a slash to be
appended to names which are symlinks to directories.
f. There is now a bindable edit-and-execute-command readline command,
like the vi-mode `v' command, bound to C-xC-e in emacs mode.
g. Added support for ksh93-like [:word:] character class in pattern matching.
h. The $'...' quoting construct now expands \cX to Control-X.
i. A new \D{...} prompt expansion; passes the `...' to strftime and inserts
the result into the expanded prompt.
j. The shell now performs arithmetic in the largest integer size the
machine supports (intmax_t), instead of long.
k. If a numeric argument is supplied to one of the bash globbing completion
functions, a `*' is appended to the word before expansion is attempted.
l. The bash globbing completion functions now allow completions to be listed
with double tabs or if `show-all-if-ambiguous' is set.
m. New `-o nospace' option for `complete' and `compgen' builtins; suppresses
readline's appending a space to the completed word.
n. New `here-string' redirection operator: <<< word.
o. When displaying variables, function attributes and definitions are shown
separately, allowing them to be re-used as input (attempting to re-use
the old output would result in syntax errors).
p. There is a new configuration option `--enable-mem-scramble', controls
bash malloc behavior of writing garbage characters into memory at
allocation and free time.
q. The `complete' and `compgen' builtins now have a new `-s/-A service'
option to complete on names from /etc/services.
r. `read' has a new `-u fd' option to read from a specified file descriptor.
s. Fix the completion code so that expansion errors in a directory name
don't cause a longjmp back to the command loop.
t. Fixed word completion inside command substitution to work a little more
intuitively.
u. The `printf' %q format specifier now uses $'...' quoting to print the
argument if it contains non-printing characters.
v. The `declare' and `typeset' builtins have a new `-t' option. When applied
to functions, it causes the DEBUG trap to be inherited by the named
function. Currently has no effect on variables.
w. The DEBUG trap is now run *before* simple commands, ((...)) commands,
[[...]] conditional commands, and for ((...)) loops.
x. The expansion of $LINENO inside a shell function is only relative to the
function start if the shell is interactive -- if the shell is running a
script, $LINENO expands to the line number in the script. This is as
POSIX-2001 requires.
y. The bash debugger in examples/bashdb has been modified to work with the
new DEBUG trap semantics, the command set has been made more gdb-like,
and the changes to $LINENO make debugging functions work better. Code
from Gary Vaughan.
z. New [n]<&word- and [n]>&word- redirections from ksh93 -- move fds (dup
and close).
aa. There is a new `-l' invocation option, equivalent to `--login'.
bb. The `hash' builtin has a new `-l' option to list contents in a reusable
format, and a `-d' option to remove a name from the hash table.
4. New Features in Readline
a. Support for key `subsequences': allows, e.g., ESC and ESC-a to both
be bound to readline functions. Now the arrow keys may be used in vi
insert mode.
b. When listing completions, and the number of lines displayed is more than
the screen length, readline uses an internal pager to display the results.
This is controlled by the `page-completions' variable (default on).
c. New code to handle editing and displaying multibyte characters.
d. The behavior introduced in bash-2.05a of deciding whether or not to
append a slash to a completed name that is a symlink to a directory has
been made optional, controlled by the `mark-symlinked-directories'
variable (default is the 2.05a behavior).
e. The `insert-comment' command now acts as a toggle if given a numeric
argument: if the first characters on the line don't specify a
comment, insert one; if they do, delete the comment text
f. New application-settable completion variable:
rl_completion_mark_symlink_dirs, allows an application's completion
function to temporarily override the user's preference for appending
slashes to names which are symlinks to directories.
g. New function available to application completion functions:
rl_completion_mode, to tell how the completion function was invoked
and decide which argument to supply to rl_complete_internal (to list
completions, etc.).
h. Readline now has an overwrite mode, toggled by the `overwrite-mode'
bindable command, which could be bound to `Insert'.
i. New application-settable completion variable:
rl_completion_suppress_append, inhibits appending of
rl_completion_append_character to completed words.
j. New key bindings when reading an incremental search string: ^W yanks
the currently-matched word out of the current line into the search
string; ^Y yanks the rest of the current line into the search string,
DEL or ^H deletes characters from the search string.
------------------------------------------------------------------------------
This document details the changes between this version, bash-2.05a-release,
and the previous version, bash-2.05a-rc1.

13
COMPAT
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@ -1,5 +1,5 @@
This document details the incompatibilites between this version of bash,
bash-2.05a, and the previous widely-available version, bash-1.14 (which
bash-2.05b, and the previous widely-available version, bash-1.14 (which
is still the `standard' version for many Linux distributions). These
were discovered by users of bash-2.x, so this list is not comprehensive.
Some of these incompatibilities occur between the current version and
@ -44,8 +44,8 @@ versions 2.0 and above.
3. The options to `bind' have changed to make them more consistent with
the rest of the bash builtins. If you are using `bind -d' to list
the readline keybindings in a form that can be re-read, use `bind -p'
instead. If you were using `bind -v' to list the keybindings, use
the readline key bindings in a form that can be re-read, use `bind -p'
instead. If you were using `bind -v' to list the key bindings, use
`bind -P' instead.
4. The `long' invocation options must now be prefixed by `--' instead
@ -64,7 +64,7 @@ versions 2.0 and above.
"\C-\\": self-insert
6. A number of people complained above having to use ESC to terminate an
6. A number of people complained about having to use ESC to terminate an
incremental search, and asked for an alternate mechanism. Bash-2.03
uses the value of the settable readline variable `isearch-terminators'
to decide which characters should terminate an incremental search. If
@ -146,6 +146,11 @@ versions 2.0 and above.
AaBb...Zz
so a range specification like [A-Z] will match every letter except `z'.
Other locales collate like
aAbBcC...zZ
which means that [A-Z] matches every letter except `a'.
The portable way to specify upper case letters is [:upper:] instead of
A-Z; lower case may be specified as [:lower:] instead of a-z.

3318
CWRU/changelog
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File diff suppressed because it is too large Load diff

19
CWRU/misc/bison
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@ -1,4 +1,23 @@
#! /bin/sh
#
# bison -- just call yacc
#
# Copyright (C) 1996-2002 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
if [ "$1" = '-y' ]; then
shift

18
CWRU/misc/errlist.c
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@ -2,6 +2,24 @@
* If necessary, link with lib/sh/libsh.a
*/
/* Copyright (C) 1998-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#include <stdio.h>
#include <errno.h>

18
CWRU/misc/hpux10-dlfcn.h
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@ -17,6 +17,24 @@
* the -E flag to LOCAL_LDFLAGS.
*/
/* Copyright (C) 1998-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#if !defined (__HPUX10_DLFCN_H__)
#define __HPUX10_DLFCN_H__

21
CWRU/misc/open-files.c
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@ -1,3 +1,23 @@
/* open-files -- report files a process has open */
/* Copyright (C) 1989-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#include <sys/types.h>
#include <fcntl.h>
#include <sys/file.h>
@ -13,4 +33,3 @@ main()
}
exit(0);
}

7
CWRU/misc/pid.c
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@ -1,7 +0,0 @@
#include <stdio.h>
main()
{
fprintf(stderr, "%d\n", getpid());
exit(0);
}

20
CWRU/misc/sigs.c
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@ -1,3 +1,23 @@
/* sigs - print signal dispositions for a process */
/* Copyright (C) 1990-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#include <signal.h>
#include <stdio.h>

20
CWRU/misc/sigstat.c
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@ -1,8 +1,28 @@
/*
* sigstat - print out useful information about signal arguments
*
* Chet Ramey
* chet@po.cwru.edu
*/
/* Copyright (C) 1991-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#include <sys/types.h>
#include <signal.h>
#include <stdio.h>

5
INSTALL
View file

@ -210,7 +210,7 @@ the Bash `configure' recognizes.
`--with-installed-readline[=PREFIX]'
Define this to make Bash link with a locally-installed version of
Readline rather than the version in `lib/readline'. This works
only with Readline 4.2 and later versions. If PREFIX is `yes' or
only with Readline 4.3 and later versions. If PREFIX is `yes' or
not supplied, `configure' uses the values of the make variables
`includedir' and `libdir', which are subdirectories of `prefix' by
default, to find the installed version of Readline if it is not in
@ -236,7 +236,8 @@ and linked, rather than changing run-time features.
Enable support for large files
(http://www.sas.com/standards/large_file/x_open.20Mar96.html) if
the operating system requires special compiler options to build
programs which can access large files.
programs which can access large files. This is enabled by
default, if the operating system provides large file support.
`--enable-profiling'
This builds a Bash binary that produces profiling information to be

64
MANIFEST
View file

@ -11,6 +11,7 @@ cross-build d
doc d
examples d
examples/bashdb d
examples/obashdb d
examples/complete d
examples/functions d
examples/scripts d
@ -44,7 +45,9 @@ INSTALL f
MANIFEST f
NEWS f
NOTES f
POSIX f
README f
RBASH f
AUTHORS f
Y2K f
configure.in f
@ -206,21 +209,27 @@ include/chartypes.h f
include/filecntl.h f
include/maxpath.h f
include/memalloc.h f
include/ocache.h f
include/posixdir.h f
include/posixjmp.h f
include/posixstat.h f
include/posixtime.h f
include/posixwait.h f
include/shmbutil.h f
include/shtty.h f
include/stdc.h f
include/systimes.h f
include/typemax.h f
include/unionwait.h f
lib/glob/Makefile.in f
lib/glob/sm_loop.c f
lib/glob/smatch.c f
lib/glob/strmatch.c f
lib/glob/strmatch.h f
lib/glob/glob.c f
lib/glob/glob.h f
lib/glob/glob_loop.c f
lib/glob/xmbsrtowcs.c f
lib/glob/collsyms.h f
lib/glob/doc/Makefile f
lib/glob/doc/glob.texi f
@ -231,11 +240,13 @@ lib/malloc/imalloc.h f
lib/malloc/mstats.h f
lib/malloc/shmalloc.h f
lib/malloc/table.h f
lib/malloc/watch.h f
lib/malloc/alloca.c f
lib/malloc/malloc.c f
lib/malloc/stats.c f
lib/malloc/table.c f
lib/malloc/trace.c f
lib/malloc/watch.c f
lib/malloc/xmalloc.c f
lib/malloc/xleaktrace f 755
lib/malloc/stub.c f
@ -269,10 +280,13 @@ lib/readline/bind.c f
lib/readline/display.c f
lib/readline/signals.c f
lib/readline/kill.c f
lib/readline/text.c f
lib/readline/undo.c f
lib/readline/macro.c f
lib/readline/input.c f
lib/readline/callback.c f
lib/readline/mbutil.c f
lib/readline/misc.c f
lib/readline/nls.c f
lib/readline/shell.c f
lib/readline/savestring.c f
@ -280,6 +294,7 @@ lib/readline/tilde.c f
lib/readline/tilde.h f
lib/readline/rldefs.h f
lib/readline/rlconf.h f
lib/readline/rlmbutil.h f
lib/readline/rlshell.h f
lib/readline/rltty.h f
lib/readline/rltypedefs.h f
@ -313,18 +328,23 @@ lib/readline/examples/manexamp.c f
lib/readline/examples/histexamp.c f
lib/readline/examples/rltest.c f
lib/readline/examples/rl.c f
lib/readline/examples/rlcat.c f
lib/readline/examples/Inputrc f
lib/sh/Makefile.in f
lib/sh/clktck.c f
lib/sh/clock.c f
lib/sh/fmtullong.c f
lib/sh/fmtulong.c f
lib/sh/fmtumax.c f
lib/sh/getcwd.c f
lib/sh/getenv.c f
lib/sh/inet_aton.c f
lib/sh/itos.c f
lib/sh/mailstat.c f
lib/sh/makepath.c f
lib/sh/memset.c f
lib/sh/mktime.c f
lib/sh/netconn.c f
lib/sh/netopen.c f
lib/sh/oslib.c f
lib/sh/pathcanon.c f
@ -337,6 +357,7 @@ lib/sh/snprintf.c f
lib/sh/spell.c f
lib/sh/strcasecmp.c f
lib/sh/strerror.c f
lib/sh/strftime.c f
lib/sh/strindex.c f
lib/sh/stringlist.c f
lib/sh/stringvec.c f
@ -353,6 +374,8 @@ lib/sh/times.c f
lib/sh/timeval.c f
lib/sh/tmpfile.c f
lib/sh/vprint.c f
lib/sh/xstrchr.c f
lib/sh/zcatfd.c f
lib/sh/zread.c f
lib/sh/zwrite.c f
lib/termcap/Makefile.in f
@ -385,14 +408,12 @@ lib/tilde/tilde.h f
lib/tilde/shell.c f
CWRU/misc/open-files.c f
CWRU/misc/sigs.c f
CWRU/misc/pid.c f
CWRU/misc/sigstat.c f
CWRU/misc/bison f
CWRU/misc/errlist.c f
CWRU/misc/hpux10-dlfcn.h f
CWRU/PLATFORMS f
CWRU/README f
CWRU/POSIX.NOTES f
CWRU/changelog f
CWRU/sh-redir-hack f
CWRU/mh-folder-comp f
@ -435,10 +456,13 @@ support/xenix-link.sh f 755
support/shobj-conf f 755
support/rlvers.sh f 755
examples/bashdb/PERMISSION f
examples/bashdb/README f
examples/bashdb/bashdb f
examples/bashdb/bashdb.fns f
examples/bashdb/bashdb.pre f
examples/bashdb/bashdb f
examples/bashdb/bashdb.el f
examples/obashdb/PERMISSION f
examples/obashdb/README f
examples/obashdb/bashdb f
examples/obashdb/bashdb.fns f
examples/obashdb/bashdb.pre f
examples/complete/complete-examples f
examples/complete/complete.ianmac f
examples/complete/complete2.ianmac f
@ -504,6 +528,7 @@ examples/functions/inetaddr f
examples/functions/inpath f
examples/functions/isnum.bash f
examples/functions/isnum2 f
examples/functions/isvalidip f
examples/functions/jdate.bash f
examples/functions/jj.bash f
examples/functions/keep f
@ -547,6 +572,7 @@ examples/scripts/precedence f
examples/scripts/randomcard.bash f
examples/scripts/scrollbar f
examples/scripts/scrollbar2 f
examples/scripts/self-repro f
examples/scripts/showperm.bash f
examples/scripts/shprompt f
examples/scripts/spin.bash f
@ -639,17 +665,15 @@ tests/glob1.sub f
tests/glob.right f
tests/heredoc.tests f
tests/heredoc.right f
tests/herestr.tests f
tests/herestr.right f
tests/histexp.tests f
tests/histexp.right f
tests/history.tests f
tests/history.right f
tests/history.list f
tests/ifs-1.test f
tests/ifs-2.test f
tests/ifs-3.test f
tests/ifs-1.right f
tests/ifs-2.right f
tests/ifs-3.right f
tests/ifs.tests f
tests/ifs.right f
tests/input-line.sh f
tests/input-line.sub f
tests/input.right f
@ -669,6 +693,12 @@ tests/new-exp3.sub f
tests/new-exp.right f
tests/nquote.tests f
tests/nquote.right f
tests/nquote1.tests f
tests/nquote1.right f
tests/nquote2.tests f
tests/nquote2.right f
tests/nquote3.tests f
tests/nquote3.right f
tests/posix2.tests f
tests/posix2.right f
tests/posixpat.tests f
@ -684,6 +714,7 @@ tests/read.right f
tests/read1.sub f
tests/read2.sub f
tests/read3.sub f
tests/read4.sub f
tests/redir.tests f
tests/redir.right f
tests/redir1.sub f
@ -693,6 +724,7 @@ tests/redir3.in1 f
tests/redir3.in2 f
tests/redir4.sub f
tests/redir4.in1 f
tests/redir5.sub f
tests/rhs-exp.tests f
tests/rhs-exp.right f
tests/rsh.tests f
@ -718,15 +750,19 @@ tests/run-func f
tests/run-getopts f
tests/run-glob-test f
tests/run-heredoc f
tests/run-herestr f
tests/run-histexpand f
tests/run-history f
tests/run-ifs-tests f
tests/run-ifs f
tests/run-input-test f
tests/run-invert f
tests/run-jobs f
tests/run-more-exp f
tests/run-new-exp f
tests/run-nquote f
tests/run-nquote1 f
tests/run-nquote2 f
tests/run-nquote3 f
tests/run-posix2 f
tests/run-posixpat f
tests/run-precedence f
@ -764,6 +800,7 @@ tests/type.right f
tests/varenv.right f
tests/varenv.sh f
tests/varenv1.sub f
tests/varenv2.sub f
tests/version f
tests/version.mini f
tests/misc/dev-tcp.tests f
@ -794,6 +831,7 @@ examples/scripts.v2/newext f
examples/scripts.v2/nmv f
examples/scripts.v2/pages f
examples/scripts.v2/pf f
examples/scripts.v2/ren f
examples/scripts.v2/rename f
examples/scripts.v2/repeat f
examples/scripts.v2/untar f

149
Makefile.in
View file

@ -1,6 +1,6 @@
# Makefile for bash-2.05a, version 2.128
# Makefile for bash-2.05b, version 2.142
#
# Copyright (C) 1996 Free Software Foundation, Inc.
# Copyright (C) 1996-2002 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@ -27,6 +27,7 @@ bindir = @bindir@
libdir = @libdir@
infodir = @infodir@
includedir = @includedir@
datadir = @datadir@
mandir = @mandir@
manpfx = man
@ -59,6 +60,7 @@ RANLIB = @RANLIB@
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_SCRIPT = @INSTALL_SCRIPT@
INSTALL_DATA = @INSTALL_DATA@
INSTALLMODE= -m 0755
INSTALLMODE2 = -m 0555
@ -86,7 +88,7 @@ VERSOBJ = bashversion.$(OBJEXT)
Program = bash$(EXEEXT)
Version = @BASHVERS@
PatchLevel = `$(BUILD_DIR)/$(VERSPROG) -p`
RELSTATUS = release
RELSTATUS = @RELSTATUS@
Machine = @host_cpu@
OS = @host_os@
@ -94,8 +96,8 @@ VENDOR = @host_vendor@
MACHTYPE = @host@
# comment out for release
#DEBUG = -DDEBUG
#MALLOC_DEBUG = -DMALLOC_DEBUG
DEBUG = @DEBUG@
MALLOC_DEBUG = @MALLOC_DEBUG@
THIS_SH = $(BUILD_DIR)/$(Program)
@ -103,26 +105,30 @@ THIS_SH = $(BUILD_DIR)/$(Program)
# with gprof, or nothing (the default).
PROFILE_FLAGS= @PROFILE_FLAGS@
# The GNU coding standards don't recognize the possibility that
# other information besides optimization and debugging might be
# passed to cc. A different name should have been used.
CFLAGS = @CFLAGS@
CFLAGS_FOR_BUILD = @CFLAGS_FOR_BUILD@
CPPFLAGS = @CPPFLAGS@
CPPFLAGS_FOR_BUILD = @CPPFLAGS_FOR_BUILD@
LOCAL_CFLAGS = @LOCAL_CFLAGS@ ${DEBUG}
DEFS = @DEFS@
LOCAL_DEFS = @LOCAL_DEFS@
LOCAL_LIBS = @LOCAL_LIBS@
LIBS = $(BUILTINS_LIB) $(LIBRARIES) @LIBS@
LDFLAGS = @LDFLAGS@ $(STATIC_LD) $(LOCAL_LDFLAGS) $(PROFILE_FLAGS) $(CFLAGS)
STATIC_LD = @STATIC_LD@
LOCAL_LDFLAGS = @LOCAL_LDFLAGS@
SYSTEM_FLAGS = -DPROGRAM='"$(Program)"' -DCONF_HOSTTYPE='"$(Machine)"' -DCONF_OSTYPE='"$(OS)"' -DCONF_MACHTYPE='"$(MACHTYPE)"' -DCONF_VENDOR='"$(VENDOR)"'
CCFLAGS_FOR_BUILD = $(PROFILE_FLAGS) $(SYSTEM_FLAGS) $(LOCAL_DEFS) \
$(DEFS) $(LOCAL_CFLAGS) $(CPPFLAGS) $(INCLUDES)
BASE_CCFLAGS = $(PROFILE_FLAGS) $(SYSTEM_FLAGS) $(LOCAL_DEFS) \
$(DEFS) $(LOCAL_CFLAGS) $(INCLUDES)
CCFLAGS = $(CCFLAGS_FOR_BUILD) $(CFLAGS)
CCFLAGS = $(BASE_CCFLAGS) $(CPPFLAGS) $(CFLAGS)
CCFLAGS_FOR_BUILD = $(BASE_CCFLAGS) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD)
LDFLAGS = @LDFLAGS@ $(STATIC_LD) $(LOCAL_LDFLAGS) $(PROFILE_FLAGS) $(CFLAGS)
LDFLAGS_FOR_BUILD = $(LDFLAGS)
INCLUDES = -I. @RL_INCLUDE@ -I$(srcdir) -I$(BASHINCDIR) -I$(LIBSRC)
@ -130,7 +136,7 @@ GCC_LINT_FLAGS = -Wall -Wshadow -Wpointer-arith -Wcast-qual \
-Wcast-align -Wstrict-prototypes -Wconversion \
-Wmissing-prototypes -Wtraditional -Wredundant-decls -pedantic
GCC_LINT_CFLAGS = $(CCFLAGS_FOR_BUILD) $(GCC_LINT_FLAGS)
GCC_LINT_CFLAGS = $(BASE_CCFLAGS) $(CPPFLAGS) $(GCC_LINT_FLAGS)
#
# Support libraries
@ -150,26 +156,30 @@ SH_LIBSRC = $(LIBSRC)/sh
SH_LIBDIR = $(dot)/${LIBSUBDIR}/sh
SH_ABSSRC = ${topdir}/${SH_LIBSRC}
SHLIB_SOURCE = ${SH_LIBSRC}/clktck.c ${SH_LIBSRC}/getcwd.c \
${SH_LIBSRC}/getenv.c ${SH_LIBSRC}/oslib.c \
${SH_LIBSRC}/setlinebuf.c \
${SH_LIBSRC}/strcasecmp.c ${SH_LIBSRC}/strerror.c \
${SH_LIBSRC}/strtod.c ${SH_LIBSRC}/strtol.c \
${SH_LIBSRC}/strtoul.c ${SH_LIBSRC}/vprint.c \
${SH_LIBSRC}/itos.c ${SH_LIBSRC}/rename.c \
${SH_LIBSRC}/zread.c ${SH_LIBSRC}/zwrite.c \
${SH_LIBSRC}/shtty.c ${SH_LIBSRC}/inet_aton.c \
${SH_LIBSRC}/netopen.c ${SH_LIBSRC}/strpbrk.c \
${SH_LIBSRC}/timeval.c ${SH_LIBSRC}/clock.c \
${SH_LIBSRC}/makepath.c ${SH_LIBSRC}/pathcanon.c \
${SH_LIBSRC}/pathphys.c ${SH_LIBSRC}/stringlist.c \
${SH_LIBSRC}/stringvec.c ${SH_LIBSRC}/tmpfile.c \
${SH_LIBSRC}/spell.c ${SH_LIBSRC}/strtrans.c \
${SH_LIBSRC}/strindex.c ${SH_LIBSRC}/shquote.c \
${SH_LIBSRC}/snprintf.c ${SH_LIBSRC}/mailstat.c \
${SH_LIBSRC}/fmtulong.c ${SH_LIBSRC}/fmtullong.c \
${SH_LIBSRC}/strtoll.c ${SH_LIBSRC}/strtoull.c \
${SH_LIBSRC}/strtoimax.c ${SH_LIBSRC}/strtoumax.c
SHLIB_SOURCE = ${SH_LIBSRC}/clktck.c ${SH_LIBSRC}/getcwd.c \
${SH_LIBSRC}/getenv.c ${SH_LIBSRC}/oslib.c \
${SH_LIBSRC}/setlinebuf.c \
${SH_LIBSRC}/strcasecmp.c ${SH_LIBSRC}/strerror.c \
${SH_LIBSRC}/strtod.c ${SH_LIBSRC}/strtol.c \
${SH_LIBSRC}/strtoul.c ${SH_LIBSRC}/vprint.c \
${SH_LIBSRC}/itos.c ${SH_LIBSRC}/rename.c \
${SH_LIBSRC}/zread.c ${SH_LIBSRC}/zwrite.c \
${SH_LIBSRC}/shtty.c ${SH_LIBSRC}/inet_aton.c \
${SH_LIBSRC}/netopen.c ${SH_LIBSRC}/strpbrk.c \
${SH_LIBSRC}/timeval.c ${SH_LIBSRC}/clock.c \
${SH_LIBSRC}/makepath.c ${SH_LIBSRC}/pathcanon.c \
${SH_LIBSRC}/pathphys.c ${SH_LIBSRC}/stringlist.c \
${SH_LIBSRC}/stringvec.c ${SH_LIBSRC}/tmpfile.c \
${SH_LIBSRC}/spell.c ${SH_LIBSRC}/strtrans.c \
${SH_LIBSRC}/strindex.c ${SH_LIBSRC}/shquote.c \
${SH_LIBSRC}/snprintf.c ${SH_LIBSRC}/mailstat.c \
${SH_LIBSRC}/fmtulong.c ${SH_LIBSRC}/fmtullong.c \
${SH_LIBSRC}/strtoll.c ${SH_LIBSRC}/strtoull.c \
${SH_LIBSRC}/strtoimax.c ${SH_LIBSRC}/strtoumax.c \
${SH_LIBSRC}/fmtumax.c ${SH_LIBSRC}/netconn.c \
${SH_LIBSRC}/mktime.c ${SH_LIBSRC}/strftime.c \
${SH_LIBSRC}/memset.c ${SH_LIBSRC}/xstrchr.c \
${SH_LIBSRC}/zcatfd.c
SHLIB_LIB = -lsh
SHLIB_LIBNAME = libsh.a
@ -206,12 +216,12 @@ READLINE_SOURCE = $(RL_LIBSRC)/rldefs.h $(RL_LIBSRC)/rlconf.h \
$(RL_LIBSRC)/rltty.c $(RL_LIBSRC)/complete.c \
$(RL_LIBSRC)/bind.c $(RL_LIBSRC)/isearch.c \
$(RL_LIBSRC)/display.c $(RL_LIBSRC)/signals.c \
$(RL_LIBSRC)/util.c $(RL_LIBSRC)/kill.c \
$(RL_LIBSRC)/util.c $(RL_LIBSRC)/kill.c $(RL_LIBSRC)/text.c \
$(RL_LIBSRC)/undo.c $(RL_LIBSRC)/macro.c \
$(RL_LIBSRC)/terminal.c $(RL_LIBSRC)/nls.c \
$(RL_LIBSRC)/input.c $(RL_LIBSRC)/xmalloc.c \
$(RL_LIBSRC)/shell.c $(RL_LIBSRC)/savestring.c \
$(RL_LIBSRC)/compat.c \
$(RL_LIBSRC)/misc.c $(RL_LIBSRC)/compat.c \
$(RL_LIBSRC)/histexpand.c $(RL_LIBSRC)/history.c \
$(RL_LIBSRC)/histsearch.c $(RL_LIBSRC)/histfile.c
@ -271,8 +281,11 @@ GLOB_LDFLAGS = -L$(GLOB_LIBDIR)
GLOB_DEP = $(GLOB_LIBRARY)
GLOB_SOURCE = $(GLOB_LIBSRC)/glob.c $(GLOB_LIBSRC)/strmatch.c \
$(GLOB_LIBSRC)/smatch.c $(GLOB_LIBSRC)/xmbsrtowcs.c \
$(GLOB_LIBSRC)/glob_loop.c $(GLOB_LIBSRC)/sm_loop.c \
$(GLOB_LIBSRC)/glob.h $(GLOB_LIBSRC)/strmatch.h
GLOB_OBJ = $(GLOB_LIBDIR)/glob.o $(GLOB_LIBDIR)/strmatch.o
GLOB_OBJ = $(GLOB_LIBDIR)/glob.o $(GLOB_LIBDIR)/strmatch.o \
$(GLOB_LIBDIR)/smatch.o $(GLOB_LIBDIR)/xmbsrtowcs.o
# The source, object and documentation for the GNU Tilde library.
TILDE_LIBSRC = $(LIBSRC)/tilde
@ -299,7 +312,7 @@ ALLOC_ABSSRC = ${topdir}/$(ALLOC_LIBDIR)
MALLOC_SRC = @MALLOC_SRC@
MALLOC_OTHERSRC = ${ALLOC_LIBSRC}/trace.c ${ALLOC_LIBSRC}/stats.c \
${ALLOC_LIBSRC}/table.c
${ALLOC_LIBSRC}/table.c ${ALLOC_LIBSRC}/watch.c
MALLOC_SOURCE = ${ALLOC_LIBSRC}/${MALLOC_SRC} ${MALLOC_OTHERSRC}
MALLOC_CFLAGS = -DRCHECK -Dbotch=programming_error ${MALLOC_DEBUG}
@ -309,7 +322,8 @@ MALLOC_LDFLAGS = @MALLOC_LDFLAGS@
MALLOC_DEP = @MALLOC_DEP@
ALLOC_HEADERS = $(ALLOC_LIBSRC)/getpagesize.h $(ALLOC_LIBSRC)/shmalloc.h \
$(ALLOC_LIBSRC)/imalloc.h $(ALLOC_LIBSRC)/mstats.h
$(ALLOC_LIBSRC)/imalloc.h $(ALLOC_LIBSRC)/mstats.h \
$(ALLOC_LIBSRC)/table.h $(ALLOC_LIBSRC)/watch.h
$(MALLOC_LIBRARY): ${MALLOC_SOURCE} ${ALLOC_HEADERS} config.h
@(cd $(ALLOC_LIBDIR) && \
@ -323,7 +337,8 @@ BASHINCFILES = $(BASHINCDIR)/posixstat.h $(BASHINCDIR)/ansi_stdlib.h \
$(BASHINCDIR)/posixjmp.h $(BASHINCDIR)/posixwait.h \
$(BASHINCDIR)/posixtime.h $(BASHINCDIR)/systimes.h \
$(BASHINCDIR)/unionwait.h $(BASHINCDIR)/maxpath.h \
$(BASHINCDIR)/shtty.h $(BASHINCDIR)/typemax.h
$(BASHINCDIR)/shtty.h $(BASHINCDIR)/typemax.h \
$(BASHINCDIR)/ocache.h
LIBRARIES = $(SHLIB_LIB) $(READLINE_LIB) $(HISTORY_LIB) $(TERMCAP_LIB) $(GLOB_LIB) \
$(TILDE_LIB) $(MALLOC_LIB) $(LOCAL_LIBS)
@ -436,7 +451,8 @@ TESTS_SUPPORT = recho$(EXEEXT) zecho$(EXEEXT) printenv$(EXEEXT)
CREATED_SUPPORT = signames.h recho$(EXEEXT) zecho$(EXEEXT) printenv$(EXEEXT) \
tests/recho$(EXEEXT) tests/zecho$(EXEEXT) \
tests/printenv$(EXEEXT) mksignames$(EXEEXT) lsignames.h \
mksyntax${EXEEXT} syntax.c $(VERSPROG) $(VERSOBJ)
mksyntax${EXEEXT} syntax.c $(VERSPROG) $(VERSOBJ) \
buildversion.o
CREATED_CONFIGURE = config.h config.cache config.status config.log \
stamp-h
CREATED_MAKEFILES = Makefile builtins/Makefile doc/Makefile \
@ -486,8 +502,11 @@ version.h: $(SOURCES) config.h Makefile
$(SHELL) $(SUPPORT_SRC)mkversion.sh -b -S ${topdir} -s $(RELSTATUS) -d $(Version) -o newversion.h \
&& mv newversion.h version.h
bashversion$(EXEEXT): patchlevel.h conftypes.h version.h version.o $(SUPPORT_SRC)bashversion.c
$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) $(CPPFLAGS) -o $@ $(SUPPORT_SRC)bashversion.c version.o
bashversion$(EXEEXT): patchlevel.h conftypes.h version.h buildversion.o $(SUPPORT_SRC)bashversion.c
$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) -o $@ $(SUPPORT_SRC)bashversion.c buildversion.o
buildversion.o: version.h conftypes.h patchlevel.h $(srcdir)/version.c
$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) -c -o $@ $(srcdir)/version.c
# old rules
GRAM_H = parser-built
@ -540,10 +559,10 @@ $(SHLIB_LIBRARY): config.h ${SHLIB_SOURCE}
$(MAKE) $(MFLAGS) DEBUG=${DEBUG} ${SHLIB_LIBNAME}) || exit 1
mksignames$(EXEEXT): $(SUPPORT_SRC)mksignames.c
$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) $(CPPFLAGS) -o $@ $(SUPPORT_SRC)mksignames.c
$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) -o $@ $(SUPPORT_SRC)mksignames.c
mksyntax$(EXEEXT): ${srcdir}/mksyntax.c config.h syntax.h ${BASHINCDIR}/chartypes.h
${CC_FOR_BUILD} ${CCFLAGS_FOR_BUILD} ${CPPFLAGS} -o $@ ${srcdir}/mksyntax.c
${CC_FOR_BUILD} ${CCFLAGS_FOR_BUILD} -o $@ ${srcdir}/mksyntax.c
# make a list of signals for the local system -- this is done when we're
# *not* cross-compiling
@ -628,11 +647,12 @@ installdirs:
install: .made installdirs
$(INSTALL_PROGRAM) $(INSTALLMODE) $(Program) $(DESTDIR)$(bindir)/$(Program)
$(INSTALL_PROGRAM) $(INSTALLMODE2) bashbug $(DESTDIR)$(bindir)/bashbug
$(INSTALL_SCRIPT) $(INSTALLMODE2) bashbug $(DESTDIR)$(bindir)/bashbug
-( cd $(DOCDIR) ; $(MAKE) $(MFLAGS) \
man1dir=$(man1dir) man1ext=$(man1ext) \
man3dir=$(man3dir) man3ext=$(man3ext) \
infodir=$(infodir) htmldir=$(htmldir) DESTDIR=$(DESTDIR) $@ )
-( cd $(DEFDIR) ; $(MAKE) $(MFLAGS) DESTDIR=$(DESTDIR) $@ )
install-strip:
$(MAKE) $(MFLAGS) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' \
@ -646,7 +666,8 @@ uninstall: .made
man3dir=$(man3dir) man3ext=$(man3ext) \
infodir=$(infodir) htmldir=$(htmldir) DESTDIR=$(DESTDIR) $@ )
.PHONY: basic-clean clean realclean maintainer-clean distclean mostlyclean
.PHONY: basic-clean clean realclean maintainer-clean distclean mostlyclean maybe-clean
basic-clean:
$(RM) $(OBJECTS) $(Program) bashbug
$(RM) .build .made version.h
@ -654,6 +675,7 @@ basic-clean:
clean: basic-clean
( cd $(DOCDIR) && $(MAKE) $(MFLAGS) $@ )
( cd builtins && $(MAKE) $(MFLAGS) $@ )
-( cd $(SDIR) && $(MAKE) $(MFLAGS) $@ )
-(cd $(RL_LIBDIR) && $(MAKE) $(MFLAGS) $@)
-(cd $(HIST_LIBDIR) && test -f Makefile && $(MAKE) $(MFLAGS) $@)
-(cd $(TERM_LIBDIR) && $(MAKE) $(MFLAGS) $@)
@ -666,6 +688,7 @@ clean: basic-clean
mostlyclean: basic-clean
( cd $(DOCDIR) && $(MAKE) $(MFLAGS) $@ )
( cd builtins && $(MAKE) $(MFLAGS) $@ )
-( cd $(SDIR) && $(MAKE) $(MFLAGS) $@ )
-(cd $(RL_LIBDIR) && $(MAKE) $(MFLAGS) $@)
-(cd $(HIST_LIBDIR) && test -f Makefile && $(MAKE) $(MFLAGS) $@)
-(cd $(TERM_LIBDIR) && $(MAKE) $(MFLAGS) $@)
@ -674,9 +697,10 @@ mostlyclean: basic-clean
-(cd $(ALLOC_LIBDIR) && $(MAKE) $(MFLAGS) $@)
-(cd $(SH_LIBDIR) && $(MAKE) $(MFLAGS) $@)
distclean: basic-clean
distclean: basic-clean maybe-clean
( cd $(DOCDIR) && $(MAKE) $(MFLAGS) $@ )
( cd builtins && $(MAKE) $(MFLAGS) $@ )
-( cd $(SDIR) && $(MAKE) $(MFLAGS) $@ )
-(cd $(RL_LIBDIR) && $(MAKE) $(MFLAGS) $@)
-(cd $(HIST_LIBDIR) && test -f Makefile && $(MAKE) $(MFLAGS) $@)
-(cd $(TERM_LIBDIR) && $(MAKE) $(MFLAGS) $@)
@ -693,6 +717,7 @@ maintainer-clean: basic-clean
$(RM) y.tab.c y.tab.h parser-built tags TAGS
( cd $(DOCDIR) && $(MAKE) $(MFLAGS) $@ )
( cd builtins && $(MAKE) $(MFLAGS) $@ )
( cd $(SDIR) && $(MAKE) $(MFLAGS) $@ )
-(cd $(RL_LIBDIR) && $(MAKE) $(MFLAGS) $@)
-(cd $(HIST_LIBDIR) && test -f Makefile && $(MAKE) $(MFLAGS) $@)
-(cd $(TERM_LIBDIR) && $(MAKE) $(MFLAGS) $@)
@ -703,14 +728,19 @@ maintainer-clean: basic-clean
$(RM) $(CREATED_CONFIGURE) $(CREATED_MAKEFILES)
$(RM) $(CREATED_SUPPORT) Makefile
maybe-clean:
-if test "X$(topdir)" != "X$(BUILD_DIR)" ; then \
$(RM) parser-built y.tab.c y.tab.h ; \
fi
recho$(EXEEXT): $(SUPPORT_SRC)recho.c
@$(CC) $(CCFLAGS) -o $@ $(SUPPORT_SRC)recho.c
@$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) -o $@ $(SUPPORT_SRC)recho.c
zecho$(EXEEXT): $(SUPPORT_SRC)zecho.c
@$(CC) $(CCFLAGS) -o $@ $(SUPPORT_SRC)zecho.c
@$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) -o $@ $(SUPPORT_SRC)zecho.c
printenv$(EXEEXT): $(SUPPORT_SRC)printenv.c
@$(CC) $(CCFLAGS) -o $@ $(SUPPORT_SRC)printenv.c
@$(CC_FOR_BUILD) $(CCFLAGS_FOR_BUILD) -o $@ $(SUPPORT_SRC)printenv.c
test tests check: force $(Program) $(TESTS_SUPPORT)
@-test -d tests || mkdir tests
@ -766,6 +796,7 @@ dispose_cmd.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h comm
dispose_cmd.o: error.h general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashlib.h
dispose_cmd.o: quit.h ${BASHINCDIR}/maxpath.h unwind_prot.h dispose_cmd.h
dispose_cmd.o: make_cmd.h subst.h sig.h pathnames.h externs.h
dispose_cmd.o: ${BASHINCDIR}/ocache.h
error.o: config.h bashtypes.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h flags.h ${BASHINCDIR}/stdc.h error.h
error.o: command.h general.h xmalloc.h externs.h input.h bashhist.h
eval.o: config.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h trap.h flags.h ${DEFSRC}/common.h
@ -810,7 +841,7 @@ general.o: ${BASHINCDIR}/chartypes.h
hashcmd.o: config.h ${BASHINCDIR}/posixstat.h bashtypes.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h
hashcmd.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h command.h ${BASHINCDIR}/stdc.h error.h
hashcmd.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashcmd.h
hashcmd.o: execute_cmd.h findcmd.h ${BASHINCDIR}/stdc.h
hashcmd.o: execute_cmd.h findcmd.h ${BASHINCDIR}/stdc.h hashlib.h
hashlib.o: config.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h
hashlib.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h command.h ${BASHINCDIR}/stdc.h error.h
hashlib.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashlib.h
@ -838,7 +869,8 @@ mailcheck.o: execute_cmd.h mailcheck.h
make_cmd.o: config.h bashtypes.h ${BASHINCDIR}/filecntl.h bashansi.h
make_cmd.o: command.h ${BASHINCDIR}/stdc.h general.h xmalloc.h error.h flags.h make_cmd.h
make_cmd.o: variables.h arrayfunc.h conftypes.h array.h hashlib.h subst.h input.h externs.h
make_cmd.o: jobs.h quit.h siglist.h syntax.h
make_cmd.o: jobs.h quit.h siglist.h syntax.h dispose_cmd.h
make_cmd.o: ${BASHINCDIR}/shmbutil.h ${BASHINCDIR}/ocache.h
y.tab.o: config.h bashtypes.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h ${BASHINCDIR}/memalloc.h
y.tab.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h command.h ${BASHINCDIR}/stdc.h error.h
y.tab.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashlib.h
@ -853,6 +885,7 @@ pathexp.o: quit.h ${BASHINCDIR}/maxpath.h unwind_prot.h dispose_cmd.h
pathexp.o: make_cmd.h subst.h sig.h pathnames.h externs.h
pathexp.o: pathexp.h flags.h
pathexp.o: $(GLOB_LIBSRC)/glob.h $(GLOB_LIBSRC)/strmatch.h
pathexp.o: ${BASHINCDIR}/shmbutil.h
print_cmd.o: config.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h
print_cmd.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h command.h ${BASHINCDIR}/stdc.h error.h
print_cmd.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashlib.h
@ -894,6 +927,7 @@ subst.o: flags.h jobs.h siglist.h execute_cmd.h ${BASHINCDIR}/filecntl.h trap.h
subst.o: mailcheck.h input.h $(DEFSRC)/getopt.h $(DEFSRC)/common.h
subst.o: bashline.h bashhist.h ${GLOB_LIBSRC}/strmatch.h
subst.o: ${BASHINCDIR}/chartypes.h
subst.o: ${BASHINCDIR}/shmbutil.h
test.o: bashtypes.h ${BASHINCDIR}/posixstat.h ${BASHINCDIR}/filecntl.h
test.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h command.h ${BASHINCDIR}/stdc.h error.h
test.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashlib.h
@ -949,11 +983,13 @@ arrayfunc.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h
arrayfunc.o: quit.h ${BASHINCDIR}/maxpath.h unwind_prot.h dispose_cmd.h
arrayfunc.o: make_cmd.h subst.h sig.h pathnames.h externs.h
arrayfunc.o: $(DEFSRC)/common.h
arrayfunc.o: ${BASHINCDIR}/shmbutil.h
braces.o: config.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h
braces.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h command.h ${BASHINCDIR}/stdc.h error.h
braces.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashlib.h
braces.o: quit.h ${BASHINCDIR}/maxpath.h unwind_prot.h dispose_cmd.h
braces.o: make_cmd.h subst.h sig.h pathnames.h externs.h
braces.o: ${BASHINCDIR}/shmbutil.h
alias.o: config.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h command.h ${BASHINCDIR}/stdc.h
alias.o: general.h xmalloc.h bashtypes.h externs.h alias.h
alias.o: pcomplete.h
@ -988,7 +1024,7 @@ bashline.o: quit.h ${BASHINCDIR}/maxpath.h unwind_prot.h dispose_cmd.h
bashline.o: make_cmd.h subst.h sig.h pathnames.h externs.h
bashline.o: builtins.h bashhist.h bashline.h execute_cmd.h findcmd.h pathexp.h
bashline.o: $(DEFSRC)/common.h $(GLOB_LIBSRC)/glob.h alias.h
bashline.o: pcomplete.h ${BASHINCDIR}/chartypes.h
bashline.o: pcomplete.h ${BASHINCDIR}/chartypes.h input.h
bracecomp.o: config.h bashansi.h ${BASHINCDIR}/ansi_stdlib.h
bracecomp.o: shell.h syntax.h config.h bashjmp.h ${BASHINCDIR}/posixjmp.h command.h ${BASHINCDIR}/stdc.h error.h
bracecomp.o: general.h xmalloc.h bashtypes.h variables.h arrayfunc.h conftypes.h array.h hashlib.h
@ -1074,7 +1110,7 @@ builtins/break.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h
builtins/break.o: shell.h syntax.h bashjmp.h ${BASHINCDIR}/posixjmp.h sig.h unwind_prot.h variables.h arrayfunc.h conftypes.h quit.h
builtins/break.o: dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h
builtins/builtin.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h xmalloc.h ${BASHINCDIR}/maxpath.h
builtins/builtin.o: quit.h $(DEFSRC)/common.h
builtins/builtin.o: quit.h $(DEFSRC)/common.h $(DEFSRC)/bashgetopt.h
builtins/builtin.o: shell.h syntax.h bashjmp.h ${BASHINCDIR}/posixjmp.h sig.h unwind_prot.h variables.h arrayfunc.h conftypes.h
builtins/builtin.o: dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h
builtins/cd.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h xmalloc.h ${BASHINCDIR}/maxpath.h
@ -1088,6 +1124,7 @@ builtins/command.o: dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/std
builtins/declare.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h xmalloc.h ${BASHINCDIR}/maxpath.h
builtins/declare.o: shell.h syntax.h bashjmp.h ${BASHINCDIR}/posixjmp.h sig.h unwind_prot.h variables.h arrayfunc.h conftypes.h quit.h
builtins/declare.o: dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h
builtins/declare.o: $(DEFSRC)/bashgetopt.h
builtins/echo.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h xmalloc.h ${BASHINCDIR}/maxpath.h
builtins/echo.o: shell.h syntax.h bashjmp.h ${BASHINCDIR}/posixjmp.h sig.h unwind_prot.h variables.h arrayfunc.h conftypes.h quit.h
builtins/echo.o: dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h
@ -1114,7 +1151,7 @@ builtins/fc.o: flags.h unwind_prot.h variables.h arrayfunc.h conftypes.h shell.h
builtins/fc.o: dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h quit.h
builtins/fc.o: $(DEFSRC)/bashgetopt.h bashhist.h
builtins/fc.o: ${BASHINCDIR}/chartypes.h
builtins/fg_bg.o: bashtypes.h
builtins/fg_bg.o: bashtypes.h $(DEFSRC)/bashgetopt.h
builtins/fg_bg.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h xmalloc.h ${BASHINCDIR}/maxpath.h
builtins/fg_bg.o: shell.h syntax.h bashjmp.h ${BASHINCDIR}/posixjmp.h sig.h unwind_prot.h variables.h arrayfunc.h conftypes.h quit.h
builtins/fg_bg.o: dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h
@ -1180,7 +1217,7 @@ builtins/shopt.o: $(DEFSRC)/common.h $(DEFSRC)/bashgetopt.h
builtins/source.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h xmalloc.h ${BASHINCDIR}/maxpath.h
builtins/source.o: quit.h dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h
builtins/source.o: shell.h syntax.h bashjmp.h ${BASHINCDIR}/posixjmp.h sig.h unwind_prot.h variables.h arrayfunc.h conftypes.h
builtins/source.o: findcmd.h
builtins/source.o: findcmd.h $(DEFSRC)/bashgetopt.h
builtins/suspend.o: command.h config.h ${BASHINCDIR}/memalloc.h error.h general.h xmalloc.h ${BASHINCDIR}/maxpath.h
builtins/suspend.o: quit.h dispose_cmd.h make_cmd.h subst.h externs.h ${BASHINCDIR}/stdc.h
builtins/suspend.o: shell.h syntax.h bashjmp.h ${BASHINCDIR}/posixjmp.h sig.h unwind_prot.h variables.h arrayfunc.h conftypes.h

147
NEWS
View file

@ -1,3 +1,150 @@
This is a terse description of the new features added to bash-2.05b since
the release of bash-2.05a. As always, the manual page (doc/bash.1) is
the place to look for complete descriptions.
1. New Features in Bash
a. If set, TMOUT is the default timeout for the `read' builtin.
b. `type' has two new options: `-f' suppresses shell function lookup, and
`-P' forces a $PATH search.
c. New code to handle multibyte characters.
d. `select' was changed to be more ksh-compatible, in that the menu is
reprinted each time through the loop only if REPLY is set to NULL.
The previous behavior is available as a compile-time option.
e. `complete -d' and `complete -o dirnames' now force a slash to be
appended to names which are symlinks to directories.
f. There is now a bindable edit-and-execute-command readline command,
like the vi-mode `v' command, bound to C-xC-e in emacs mode.
g. Added support for ksh93-like [:word:] character class in pattern matching.
h. The $'...' quoting construct now expands \cX to Control-X.
i. A new \D{...} prompt expansion; passes the `...' to strftime and inserts
the result into the expanded prompt.
j. The shell now performs arithmetic in the largest integer size the
machine supports (intmax_t), instead of long.
k. If a numeric argument is supplied to one of the bash globbing completion
functions, a `*' is appended to the word before expansion is attempted.
l. The bash globbing completion functions now allow completions to be listed
with double tabs or if `show-all-if-ambiguous' is set.
m. New `-o nospace' option for `complete' and `compgen' builtins; suppresses
readline's appending a space to the completed word.
n. New `here-string' redirection operator: <<< word.
o. When displaying variables, function attributes and definitions are shown
separately, allowing them to be re-used as input (attempting to re-use
the old output would result in syntax errors).
p. There is a new configuration option `--enable-mem-scramble', controls
bash malloc behavior of writing garbage characters into memory at
allocation and free time.
q. The `complete' and `compgen' builtins now have a new `-s/-A service'
option to complete on names from /etc/services.
r. `read' has a new `-u fd' option to read from a specified file descriptor.
s. Fix the completion code so that expansion errors in a directory name
don't cause a longjmp back to the command loop.
t. Fixed word completion inside command substitution to work a little more
intuitively.
u. The `printf' %q format specifier now uses $'...' quoting to print the
argument if it contains non-printing characters.
v. The `declare' and `typeset' builtins have a new `-t' option. When applied
to functions, it causes the DEBUG trap to be inherited by the named
function. Currently has no effect on variables.
w. The DEBUG trap is now run *before* simple commands, ((...)) commands,
[[...]] conditional commands, and for ((...)) loops.
x. The expansion of $LINENO inside a shell function is only relative to the
function start if the shell is interactive -- if the shell is running a
script, $LINENO expands to the line number in the script. This is as
POSIX-2001 requires.
y. The bash debugger in examples/bashdb has been modified to work with the
new DEBUG trap semantics, the command set has been made more gdb-like,
and the changes to $LINENO make debugging functions work better. Code
from Gary Vaughan.
z. New [n]<&word- and [n]>&word- redirections from ksh93 -- move fds (dup
and close).
aa. There is a new `-l' invocation option, equivalent to `--login'.
bb. The `hash' builtin has a new `-l' option to list contents in a reusable
format, and a `-d' option to remove a name from the hash table.
cc. There is now support for placing the long help text into separate files
installed into ${datadir}/bash. Not enabled by default; can be turned
on with `--enable-separate-helpfiles' option to configure.
dd. All builtins that take operands accept a `--' pseudo-option, except
`echo'.
ee. The `echo' builtin now accepts \0xxx (zero to three octal digits following
the `0') in addition to \xxx (one to three octal digits) for SUSv3/XPG6/
POSIX.1-2001 compliance.
2. New Features in Readline
a. Support for key `subsequences': allows, e.g., ESC and ESC-a to both
be bound to readline functions. Now the arrow keys may be used in vi
insert mode.
b. When listing completions, and the number of lines displayed is more than
the screen length, readline uses an internal pager to display the results.
This is controlled by the `page-completions' variable (default on).
c. New code to handle editing and displaying multibyte characters.
d. The behavior introduced in bash-2.05a of deciding whether or not to
append a slash to a completed name that is a symlink to a directory has
been made optional, controlled by the `mark-symlinked-directories'
variable (default is the 2.05a behavior).
e. The `insert-comment' command now acts as a toggle if given a numeric
argument: if the first characters on the line don't specify a
comment, insert one; if they do, delete the comment text
f. New application-settable completion variable:
rl_completion_mark_symlink_dirs, allows an application's completion
function to temporarily override the user's preference for appending
slashes to names which are symlinks to directories.
g. New function available to application completion functions:
rl_completion_mode, to tell how the completion function was invoked
and decide which argument to supply to rl_complete_internal (to list
completions, etc.).
h. Readline now has an overwrite mode, toggled by the `overwrite-mode'
bindable command, which could be bound to `Insert'.
i. New application-settable completion variable:
rl_completion_suppress_append, inhibits appending of
rl_completion_append_character to completed words.
j. New key bindings when reading an incremental search string: ^W yanks
the currently-matched word out of the current line into the search
string; ^Y yanks the rest of the current line into the search string,
DEL or ^H deletes characters from the search string.
-------------------------------------------------------------------------------
This is a terse description of the new features added to bash-2.05a since
the release of bash-2.05. As always, the manual page (doc/bash.1) is
the place to look for complete descriptions.

10
NOTES
View file

@ -30,11 +30,6 @@ Platform-Specific Configuration and Operation Notes
leak caused by using the bash malloc because closedir(3) needs to read
freed memory to find the file descriptor to close
If you are using GNU libc, especially on a linux system
(Configuring --without-gnu-malloc will still result in lib/malloc/libmalloc.a
being built and linked against, but there is only a stub file in the archive.)
2. Configure using shlicc2 on BSD/OS 2.1 and BSD/OS 3.x to use loadable
builtins
@ -234,7 +229,7 @@ being built and linked against, but there is only a stub file in the archive.)
If you want to completely remove any dependence on /usr, perhaps
to put a copy of bash in /sbin and have it available when /usr is
not mounted, force the build process to use the shared ld.so library
not mounted, force the build process to use the shared dl.so library
in /etc/lib.
For gcc, this would be something like
@ -326,3 +321,6 @@ being built and linked against, but there is only a stub file in the archive.)
want it).
5. make; make install; enjoy
15. Configure with `CC=xlc' if you don't have gcc on AIX 4.2 and later
versions. `xlc' running in `cc' mode has trouble compiling error.c.

11
CWRU/POSIX.NOTES → POSIX
View file

@ -6,6 +6,9 @@ Starting Bash with the `--posix' command-line option or executing `set
to the POSIX 1003.2 standard by changing the behavior to match that
specified by POSIX in areas where the Bash default differs.
When invoked as `sh', Bash enters POSIX mode after reading the startup
files.
The following list is what's changed when `POSIX mode' is in effect:
1. When a command in the hash table no longer exists, Bash will
@ -112,6 +115,14 @@ The following list is what's changed when `POSIX mode' is in effect:
30. When the `set' builtin is invoked without options, it does not
display shell function names and definitions.
31. When the `set' builtin is invoked without options, it displays
variable values without quotes, unless they contain shell
metacharacters, even if the result contains nonprinting characters.
32. When the `cd' builtin is invoked in LOGICAL mode, and the pathname
constructed from `$PWD' and the directory name supplied as an
argument does not refer to an existing directory, `cd' will fail
instead of falling back to PHYSICAL mode.
There is other POSIX 1003.2 behavior that Bash does not implement.
Specifically:

49
RBASH Normal file
View file

@ -0,0 +1,49 @@
The Restricted Shell
====================
If Bash is started with the name `rbash', or the `--restricted' or `-r'
option is supplied at invocation, the shell becomes restricted. A
restricted shell is used to set up an environment more controlled than
the standard shell. A restricted shell behaves identically to `bash'
with the exception that the following are disallowed or not performed:
* Changing directories with the `cd' builtin.
* Setting or unsetting the values of the `SHELL', `PATH', `ENV', or
`BASH_ENV' variables.
* Specifying command names containing slashes.
* Specifying a filename containing a slash as an argument to the `.'
builtin command.
* Specifying a filename containing a slash as an argument to the `-p'
option to the `hash' builtin command.
* Importing function definitions from the shell environment at
startup.
* Parsing the value of `SHELLOPTS' from the shell environment at
startup.
* Redirecting output using the `>', `>|', `<>', `>&', `&>', and `>>'
redirection operators.
* Using the `exec' builtin to replace the shell with another command.
* Adding or deleting builtin commands with the `-f' and `-d' options
to the `enable' builtin.
* Using the `enable' builtin command to enable disabled shell
builtins.
* Specifying the `-p' option to the `command' builtin.
* Turning off restricted mode with `set +r' or `set +o restricted'.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed (*note
Shell Scripts::), `rbash' turns off any restrictions in the shell
spawned to execute the script.

8
README
View file

@ -1,7 +1,7 @@
Introduction
============
This is GNU Bash, version 2.05a. Bash is the GNU Project's Bourne
This is GNU Bash, version 2.05b. Bash is the GNU Project's Bourne
Again SHell, a complete implementation of the POSIX.2 shell spec,
but also with interactive command line editing, job control on
architectures that support it, csh-like features such as history
@ -67,9 +67,9 @@ built at the same time as bash. If bash fails to build, try building
bashbug directly with `make bashbug'. If you cannot build `bashbug',
please send mail to bug-bash@gnu.org with the following information:
* the version number and release status of Bash (e.g., 2.01-release)
* the machine and OS that it is running on (look at the file
`.made' in the bash build directory)
* the version number and release status of Bash (e.g., 2.05a-release)
* the machine and OS that it is running on (you may run
`bashversion -l' from the bash build directory for this information)
* a list of the compilation flags or the contents of `config.h', if
appropriate
* a description of the bug

116
aclocal.m4 vendored
View file

@ -605,6 +605,66 @@ AC_DEFINE(CAN_REDEFINE_GETENV)
fi
])
# We should check for putenv before calling this
AC_DEFUN(BASH_FUNC_STD_PUTENV,
[
AC_REQUIRE([AC_HEADER_STDC])
AC_REQUIRE([AC_C_PROTOTYPES])
AC_CACHE_CHECK([for standard-conformant putenv declaration], bash_cv_std_putenv,
[AC_TRY_LINK([
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
#ifndef __STDC__
# ifndef const
# define const
# endif
#endif
#ifdef PROTOTYPES
extern int putenv (char *);
#else
extern int putenv ();
#endif
],
[return (putenv == 0);],
bash_cv_std_putenv=yes, bash_cv_std_putenv=no
)])
if test $bash_cv_std_putenv = yes; then
AC_DEFINE(HAVE_STD_PUTENV)
fi
])
# We should check for unsetenv before calling this
AC_DEFUN(BASH_FUNC_STD_UNSETENV,
[
AC_REQUIRE([AC_HEADER_STDC])
AC_REQUIRE([AC_C_PROTOTYPES])
AC_CACHE_CHECK([for standard-conformant unsetenv declaration], bash_cv_std_unsetenv,
[AC_TRY_LINK([
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
#ifndef __STDC__
# ifndef const
# define const
# endif
#endif
#ifdef PROTOTYPES
extern int unsetenv (const char *);
#else
extern int unsetenv ();
#endif
],
[return (unsetenv == 0);],
bash_cv_std_unsetenv=yes, bash_cv_std_unsetenv=no
)])
if test $bash_cv_std_unsetenv = yes; then
AC_DEFINE(HAVE_STD_UNSETENV)
fi
])
AC_DEFUN(BASH_FUNC_ULIMIT_MAXFDS,
[AC_MSG_CHECKING(whether ulimit can substitute for getdtablesize)
AC_CACHE_VAL(bash_cv_ulimit_maxfds,
@ -922,7 +982,7 @@ _bash_needmsg=
fi
AC_CACHE_VAL(bash_cv_termcap_lib,
[AC_CHECK_LIB(termcap, tgetent, bash_cv_termcap_lib=libtermcap,
[AC_CHECK_LIB(tinfo, tgetent, bash_cv_termcal_lib=libtinfo,
[AC_CHECK_LIB(tinfo, tgetent, bash_cv_termcap_lib=libtinfo,
[AC_CHECK_LIB(curses, tgetent, bash_cv_termcap_lib=libcurses,
[AC_CHECK_LIB(ncurses, tgetent, bash_cv_termcap_lib=libncurses,
bash_cv_termcap_lib=gnutermcap)])])])])
@ -1378,10 +1438,10 @@ AC_DEFUN(BASH_SYS_DEFAULT_MAIL_DIR,
AC_CACHE_VAL(bash_cv_mail_dir,
[if test -d /var/mail; then
bash_cv_mail_dir=/var/mail
elif test -d /usr/mail; then
bash_cv_mail_dir=/usr/mail
elif test -d /var/spool/mail; then
bash_cv_mail_dir=/var/spool/mail
elif test -d /usr/mail; then
bash_cv_mail_dir=/usr/mail
elif test -d /usr/spool/mail; then
bash_cv_mail_dir=/usr/spool/mail
else
@ -1389,17 +1449,7 @@ AC_CACHE_VAL(bash_cv_mail_dir,
fi
])
AC_MSG_RESULT($bash_cv_mail_dir)
if test $bash_cv_mail_dir = "/var/mail"; then
AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/var/mail")
elif test $bash_cv_mail_dir = "/usr/mail"; then
AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/usr/mail")
elif test $bash_cv_mail_dir = "/var/spool/mail"; then
AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/var/spool/mail")
elif test $bash_cv_mail_dir = "/usr/spool/mail"; then
AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "/usr/spool/mail")
else
AC_DEFINE(DEFAULT_MAIL_DIRECTORY, "unknown")
fi
AC_DEFINE_UNQUOTED(DEFAULT_MAIL_DIRECTORY, "$bash_cv_mail_dir")
])
AC_DEFUN(BASH_HAVE_TIOCGWINSZ,
@ -1593,6 +1643,42 @@ AC_DEFINE(UNUSABLE_RT_SIGNALS)
fi
])
dnl
dnl check for availability of multibyte characters and functions
dnl
AC_DEFUN(BASH_CHECK_MULTIBYTE,
[
AC_CHECK_HEADERS(wctype.h)
AC_CHECK_HEADERS(wchar.h)
AC_CHECK_HEADERS(langinfo.h)
AC_CHECK_FUNC(mbsrtowcs, AC_DEFINE(HAVE_MBSRTOWCS))
AC_CHECK_FUNC(wcwidth, AC_DEFINE(HAVE_WCWIDTH))
AC_CACHE_CHECK([for mbstate_t], bash_cv_have_mbstate_t,
[AC_TRY_RUN([
#include <wchar.h>
int
main ()
{
mbstate_t ps;
return 0;
}], bash_cv_have_mbstate_t=yes, bash_cv_have_mbstate_t=no)])
if test $bash_cv_have_mbstate_t = yes; then
AC_DEFINE(HAVE_MBSTATE_T)
fi
AC_CACHE_CHECK([for nl_langinfo and CODESET], bash_cv_langinfo_codeset,
[AC_TRY_LINK(
[#include <langinfo.h>],
[char* cs = nl_langinfo(CODESET);],
bash_cv_langinfo_codeset=yes, bash_cv_langinfo_codeset=no)])
if test $bash_cv_langinfo_codeset = yes; then
AC_DEFINE(HAVE_LANGINFO_CODESET)
fi
])
dnl need: prefix exec_prefix libdir includedir CC TERMCAP_LIB
dnl require:
dnl AC_PROG_CC
@ -1655,7 +1741,7 @@ RL_MINOR=0
case "$ac_cv_rl_version" in
2*|3*|4*|5*|6*|7*|8*|9*)
RL_MAJOR=`echo $ac_cv_rl_version | sed 's:\..*$::'`
RL_MINOR=`echo $ac_cv_rl_version | sed -e 's:^.*\.::' -e 's:[a-zA-Z]*$::'`
RL_MINOR=`echo $ac_cv_rl_version | sed -e 's:^.*\.::' -e 's:[[a-zA-Z]]*$::'`
;;
esac

47
alias.c
View file

@ -1,7 +1,7 @@
/* alias.c -- Not a full alias, but just the kind that we use in the
shell. Csh style alias is somewhere else (`over there, in a box'). */
/* Copyright (C) 1987,1991 Free Software Foundation, Inc.
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -42,6 +42,8 @@
# include "pcomplete.h"
#endif
#define ALIAS_HASH_BUCKETS 16 /* must be power of two */
typedef int sh_alias_map_func_t __P((alias_t *));
static void free_alias_data __P((PTR_T));
@ -66,7 +68,7 @@ void
initialize_aliases ()
{
if (!aliases)
aliases = make_hash_table (0);
aliases = hash_create (ALIAS_HASH_BUCKETS);
}
/* Scan the list of aliases looking for one with NAME. Return NULL
@ -80,7 +82,7 @@ find_alias (name)
if (aliases == 0)
return ((alias_t *)NULL);
al = find_hash_item (name, aliases);
al = hash_search (name, aliases, 0);
return (al ? (alias_t *)al->data : (alias_t *)NULL);
}
@ -120,6 +122,7 @@ add_alias (name, value)
{
free (temp->value);
temp->value = savestring (value);
temp->flags &= ~AL_EXPANDNEXT;
n = value[strlen (value) - 1];
if (n == ' ' || n == '\t')
temp->flags |= AL_EXPANDNEXT;
@ -135,8 +138,8 @@ add_alias (name, value)
if (n == ' ' || n == '\t')
temp->flags |= AL_EXPANDNEXT;
elt = add_hash_item (savestring (name), aliases);
elt->data = (char *)temp;
elt = hash_insert (savestring (name), aliases, HASH_NOSRCH);
elt->data = temp;
#if defined (PROGRAMMABLE_COMPLETION)
set_itemlist_dirty (&it_aliases);
#endif
@ -168,7 +171,7 @@ remove_alias (name)
if (aliases == 0)
return (-1);
elt = remove_hash_item (name, aliases);
elt = hash_remove (name, aliases, 0);
if (elt)
{
free_alias_data (elt->data);
@ -189,8 +192,8 @@ delete_all_aliases ()
if (aliases == 0)
return;
flush_hash_table (aliases, free_alias_data);
dispose_hash_table (aliases);
hash_flush (aliases, free_alias_data);
hash_dispose (aliases);
aliases = (HASH_TABLE *)NULL;
#if defined (PROGRAMMABLE_COMPLETION)
set_itemlist_dirty (&it_aliases);
@ -206,30 +209,24 @@ map_over_aliases (function)
register int i;
register BUCKET_CONTENTS *tlist;
alias_t *alias, **list;
int list_index, list_size;
int list_index;
list = (alias_t **)NULL;
for (i = list_index = list_size = 0; i < aliases->nbuckets; i++)
i = HASH_ENTRIES (aliases);
if (i == 0)
return ((alias_t **)NULL);
list = (alias_t **)xmalloc ((i + 1) * sizeof (alias_t *));
for (i = list_index = 0; i < aliases->nbuckets; i++)
{
tlist = get_hash_bucket (i, aliases);
while (tlist)
for (tlist = hash_items (i, aliases); tlist; tlist = tlist->next)
{
alias = (alias_t *)tlist->data;
if (!function || (*function) (alias))
{
if (list_index + 1 >= list_size)
{
list_size += 20;
list = (alias_t **)xrealloc (list,
list_size * sizeof (alias_t *));
}
list[list_index++] = alias;
list[list_index] = (alias_t *)NULL;
}
tlist = tlist->next;
}
}
return (list);
@ -239,7 +236,7 @@ static void
sort_aliases (array)
alias_t **array;
{
qsort (array, array_len ((char **)array), sizeof (alias_t *), (QSFUNC *)qsort_alias_compare);
qsort (array, strvec_len ((char **)array), sizeof (alias_t *), (QSFUNC *)qsort_alias_compare);
}
static int
@ -260,7 +257,7 @@ all_aliases ()
{
alias_t **list;
if (!aliases)
if (aliases == 0 || HASH_ENTRIES (aliases) == 0)
return ((alias_t **)NULL);
list = map_over_aliases ((sh_alias_map_func_t *)NULL);
@ -529,7 +526,7 @@ alias_expand (string)
/* If there is a backslash-escaped character quoted in TOKEN,
then we don't do alias expansion. This should check for all
other quoting characters, too. */
if (strchr (token, '\\'))
if (xstrchr (token, '\\'))
expand_this_token = 0;
/* If we should be expanding here, if we are expanding all words, or if

926
array.c
View file

File diff suppressed because it is too large Load diff

51
array.h
View file

@ -24,13 +24,13 @@
#include "stdc.h"
typedef long arrayind_t;
typedef intmax_t arrayind_t;
enum atype {array_indexed, array_assoc};
typedef struct array {
enum atype type;
arrayind_t max_index, num_elements, max_size;
arrayind_t max_index, num_elements;
struct array_element *head;
} ARRAY;
@ -42,36 +42,43 @@ typedef struct array_element {
typedef int sh_ae_map_func_t __P((ARRAY_ELEMENT *));
char *array_reference __P((ARRAY *, arrayind_t));
/* Basic operations on entire arrays */
extern ARRAY *array_create __P((void));
extern void array_flush __P((ARRAY *));
extern void array_dispose __P((ARRAY *));
extern ARRAY *array_copy __P((ARRAY *));
extern ARRAY *array_slice __P((ARRAY *, ARRAY_ELEMENT *, ARRAY_ELEMENT *));
extern void array_walk __P((ARRAY *, sh_ae_map_func_t *));
extern int array_add_element __P((ARRAY *, arrayind_t, char *));
extern ARRAY_ELEMENT *array_delete_element __P((ARRAY *, arrayind_t));
extern ARRAY_ELEMENT *array_shift __P((ARRAY *, int, int));
extern int array_rshift __P((ARRAY *, int, char *));
extern ARRAY *array_quote __P((ARRAY *));
extern ARRAY_ELEMENT *new_array_element __P((arrayind_t, char *));
extern void destroy_array_element __P((ARRAY_ELEMENT *));
extern char *array_subrange __P((ARRAY *, arrayind_t, arrayind_t, int));
extern char *array_patsub __P((ARRAY *, char *, char *, int));
extern ARRAY *new_array __P((void));
extern void empty_array __P((ARRAY *));
extern void dispose_array __P((ARRAY *));
extern ARRAY *dup_array __P((ARRAY *));
extern ARRAY *dup_array_subrange __P((ARRAY *, ARRAY_ELEMENT *, ARRAY_ELEMENT *));
extern ARRAY_ELEMENT *copy_array_element __P((ARRAY_ELEMENT *));
/* Basic operations on array elements. */
extern ARRAY_ELEMENT *array_create_element __P((arrayind_t, char *));
extern ARRAY_ELEMENT *array_copy_element __P((ARRAY_ELEMENT *));
extern void array_dispose_element __P((ARRAY_ELEMENT *));
extern int array_insert __P((ARRAY *, arrayind_t, char *));
extern ARRAY_ELEMENT *array_remove __P((ARRAY *, arrayind_t));
extern char *array_reference __P((ARRAY *, arrayind_t));
/* Converting to and from arrays */
extern WORD_LIST *array_to_word_list __P((ARRAY *));
extern ARRAY *word_list_to_array __P((WORD_LIST *));
extern ARRAY *assign_word_list __P((ARRAY *, WORD_LIST *));
extern ARRAY *array_from_word_list __P((WORD_LIST *));
extern ARRAY *array_assign_list __P((ARRAY *, WORD_LIST *));
extern char **array_to_argv __P((ARRAY *));
extern char *array_to_assignment_string __P((ARRAY *));
extern char *quoted_array_assignment_string __P((ARRAY *));
extern char *array_to_assign __P((ARRAY *, int));
extern char *array_to_string __P((ARRAY *, char *, int));
extern ARRAY *string_to_array __P((char *, char *));
extern ARRAY *array_from_string __P((char *, char *));
extern char *array_subrange __P((ARRAY *, arrayind_t, arrayind_t, int));
extern char *array_pat_subst __P((ARRAY *, char *, char *, int));
extern ARRAY *array_quote __P((ARRAY *));
/* Flags for array_shift */
#define AS_DISPOSE 0x01
#define array_num_elements(a) ((a)->num_elements)
#define array_max_index(a) ((a)->max_index)

166
arrayfunc.c
View file

@ -1,6 +1,6 @@
/* arrayfunc.c -- High-level array functions used by other parts of the shell. */
/* Copyright (C) 2001 Free Software Foundation, Inc.
/* Copyright (C) 2001-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -28,13 +28,16 @@
#include <stdio.h>
#include "shell.h"
#include "shmbutil.h"
#include "builtins/common.h"
extern char *this_command_name;
extern int last_command_exit_value;
static void quote_array_assignment_chars __P((WORD_LIST *));
static char *array_value_internal __P((char *, int, int));
static char *array_value_internal __P((char *, int, int, int *));
/* **************************************************************** */
/* */
@ -52,11 +55,15 @@ convert_var_to_array (var)
ARRAY *array;
oldval = value_cell (var);
array = new_array ();
array_add_element (array, 0, oldval);
array = array_create ();
array_insert (array, 0, oldval);
FREE (value_cell (var));
var->value = (char *)array;
var_setarray (var, array);
/* these aren't valid anymore */
var->dynamic_value = (sh_var_value_func_t *)NULL;
var->assign_func = (sh_var_assign_func_t *)NULL;
INVALIDATE_EXPORTSTR (var);
@ -89,7 +96,7 @@ bind_array_variable (name, ind, value)
else if (readonly_p (entry) || noassign_p (entry))
{
if (readonly_p (entry))
report_error ("%s: readonly variable", name);
err_readonly (name);
return (entry);
}
else if (array_p (entry) == 0)
@ -98,9 +105,9 @@ bind_array_variable (name, ind, value)
/* ENTRY is an array variable, and ARRAY points to the value. */
newval = make_variable_value (entry, value);
if (entry->assign_func)
(*entry->assign_func) (entry, ind, newval);
(*entry->assign_func) (entry, newval, ind);
else
array_add_element (array_cell (entry), ind, newval);
array_insert (array_cell (entry), ind, newval);
FREE (newval);
return (entry);
@ -125,7 +132,7 @@ assign_array_element (name, value)
if ((ALL_ELEMENT_SUB (sub[0]) && sub[1] == ']') || (sublen <= 1))
{
free (vname);
report_error ("%s: bad array subscript", name);
err_badarraysub (name);
return ((SHELL_VAR *)NULL);
}
@ -133,7 +140,7 @@ assign_array_element (name, value)
if (ind < 0)
{
free (vname);
report_error ("%s: bad array subscript", name);
err_badarraysub (name);
return ((SHELL_VAR *)NULL);
}
@ -162,7 +169,7 @@ find_or_make_array_variable (name, check_flags)
else if (check_flags && (readonly_p (var) || noassign_p (var)))
{
if (readonly_p (var))
report_error ("%s: readonly variable", name);
err_readonly (name);
return ((SHELL_VAR *)NULL);
}
else if (array_p (var) == 0)
@ -199,9 +206,9 @@ assign_array_var_from_word_list (var, list)
for (a = array_cell (var), l = list, i = 0; l; l = l->next, i++)
if (var->assign_func)
(*var->assign_func) (var, i, l->word->word);
(*var->assign_func) (var, l->word->word, i);
else
array_add_element (a, i, l->word->word);
array_insert (a, i, l->word->word);
return var;
}
@ -222,7 +229,7 @@ assign_array_var_from_string (var, value)
return var;
/* If this is called from declare_builtin, value[0] == '(' and
strchr(value, ')') != 0. In this case, we need to extract
xstrchr(value, ')') != 0. In this case, we need to extract
the value from between the parens before going on. */
if (*value == '(') /*)*/
{
@ -259,7 +266,7 @@ assign_array_var_from_string (var, value)
/* Now that we are ready to assign values to the array, kill the existing
value. */
if (a)
empty_array (a);
array_flush (a);
for (last_ind = 0, list = nlist; list; list = list->next)
{
@ -274,9 +281,9 @@ assign_array_var_from_string (var, value)
{
nval = make_variable_value (var, w);
if (var->assign_func)
(*var->assign_func) (var, last_ind, nval);
(*var->assign_func) (var, nval, last_ind);
else
array_add_element (a, last_ind, nval);
array_insert (a, last_ind, nval);
FREE (nval);
last_ind++;
continue;
@ -284,7 +291,7 @@ assign_array_var_from_string (var, value)
if (len == 1)
{
report_error ("%s: bad array subscript", w);
err_badarraysub (w);
continue;
}
@ -297,7 +304,7 @@ assign_array_var_from_string (var, value)
ind = array_expand_index (w + 1, len);
if (ind < 0)
{
report_error ("%s: bad array subscript", w);
err_badarraysub (w);
continue;
}
last_ind = ind;
@ -313,9 +320,9 @@ assign_array_var_from_string (var, value)
this_command_name = (char *)NULL; /* no command name for errors */
nval = make_variable_value (var, val);
if (var->assign_func)
(*var->assign_func) (var, ind, nval);
(*var->assign_func) (var, nval, ind);
else
array_add_element (a, ind, nval);
array_insert (a, ind, nval);
FREE (nval);
last_ind++;
}
@ -340,7 +347,7 @@ quote_array_assignment_chars (list)
if (l->word == 0 || l->word->word == 0 || l->word->word[0] == '\0')
continue; /* should not happen, but just in case... */
/* Don't bother if it doesn't look like [ind]=value */
if (l->word->word[0] != '[' || strchr (l->word->word, '=') == 0) /* ] */
if (l->word->word[0] != '[' || xstrchr (l->word->word, '=') == 0) /* ] */
continue;
s = nword = (char *)xmalloc (strlen (l->word->word) * 2 + 1);
saw_eq = 0;
@ -366,14 +373,56 @@ skipsubscript (s, i)
int i;
{
int count, c;
#if defined (HANDLE_MULTIBYTE)
mbstate_t state, state_bak;
size_t slength, mblength;
size_t mb_cur_max;
#endif
for (count = 1; count && (c = s[++i]); )
#if defined (HANDLE_MULTIBYTE)
memset (&state, '\0', sizeof (mbstate_t));
slength = strlen (s + i);
mb_cur_max = MB_CUR_MAX;
#endif
count = 1;
while (count)
{
if (c == '[')
/* Advance one (possibly multibyte) character in S starting at I. */
#if defined (HANDLE_MULTIBYTE)
if (mb_cur_max > 1)
{
state_bak = state;
mblength = mbrlen (s + i, slength, &state);
if (mblength == (size_t)-2 || mblength == (size_t)-1)
{
state = state_bak;
i++;
slength--;
}
else if (mblength == 0)
return i;
else
{
i += mblength;
slength -= mblength;
}
}
else
#endif
++i;
c = s[i];
if (c == 0)
break;
else if (c == '[')
count++;
else if (c == ']')
count--;
}
return i;
}
@ -399,7 +448,7 @@ unbind_array_element (var, sub)
if (ALL_ELEMENT_SUB (sub[0]) && sub[1] == 0)
{
makunbound (var->name, shell_variables);
unbind_variable (var->name);
return (0);
}
ind = array_expand_index (sub, len+1);
@ -408,9 +457,9 @@ unbind_array_element (var, sub)
builtin_error ("[%s]: bad array subscript", sub);
return -1;
}
ae = array_delete_element (array_cell (var), ind);
ae = array_remove (array_cell (var), ind);
if (ae)
destroy_array_element (ae);
array_dispose_element (ae);
return 0;
}
@ -423,10 +472,7 @@ print_array_assignment (var, quoted)
{
char *vstr;
if (quoted)
vstr = quoted_array_assignment_string (array_cell (var));
else
vstr = array_to_assignment_string (array_cell (var));
vstr = array_to_assign (array_cell (var), quoted);
if (vstr == 0)
printf ("%s=%s\n", var->name, quoted ? "'()'" : "()");
@ -451,7 +497,7 @@ valid_array_reference (name)
char *t;
int r, len;
t = strchr (name, '['); /* ] */
t = xstrchr (name, '['); /* ] */
if (t)
{
*t = '\0';
@ -509,14 +555,14 @@ array_variable_name (s, subp, lenp)
char *t, *ret;
int ind, ni;
t = strchr (s, '[');
t = xstrchr (s, '[');
if (t == 0)
return ((char *)NULL);
ind = t - s;
ni = skipsubscript (s, ind);
if (ni <= ind + 1 || s[ni] != ']')
{
report_error ("%s: bad array subscript", s);
err_badarraysub (s);
return ((char *)NULL);
}
@ -554,11 +600,13 @@ array_variable_part (s, subp, lenp)
/* Return a string containing the elements in the array and subscript
described by S. If the subscript is * or @, obeys quoting rules akin
to the expansion of $* and $@ including double quoting. */
to the expansion of $* and $@ including double quoting. If RTYPE
is non-null it gets 1 if the array reference is name[@] or name[*]
and 0 otherwise. */
static char *
array_value_internal (s, quoted, allow_all)
array_value_internal (s, quoted, allow_all, rtype)
char *s;
int quoted, allow_all;
int quoted, allow_all, *rtype;
{
int len;
arrayind_t ind;
@ -568,22 +616,27 @@ array_value_internal (s, quoted, allow_all)
var = array_variable_part (s, &t, &len);
/* Expand the index, even if the variable doesn't exist, in case side
effects are needed, like ${w[i++]} where w is unset. */
#if 0
if (var == 0)
return (char *)NULL;
#endif
/* [ */
if (ALL_ELEMENT_SUB (t[0]) && t[1] == ']')
{
if (rtype)
*rtype = 1;
if (allow_all == 0)
{
report_error ("%s: bad array subscript", s);
err_badarraysub (s);
return ((char *)NULL);
}
else if (var == 0)
return ((char *)NULL);
else if (array_p (var) == 0)
{
l = (WORD_LIST *)NULL;
l = add_string_to_list (value_cell (var), l);
}
l = add_string_to_list (value_cell (var), (WORD_LIST *)NULL);
else
{
l = array_to_word_list (array_cell (var));
@ -604,17 +657,26 @@ array_value_internal (s, quoted, allow_all)
}
else
{
if (rtype)
*rtype = 0;
ind = array_expand_index (t, len);
if (ind < 0)
{
report_error ("%s: bad array subscript", var->name);
if (var)
err_badarraysub (var->name);
else
{
t[-1] = '\0';
err_badarraysub (s);
t[-1] = '['; /* ] */
}
return ((char *)NULL);
}
if (var == 0)
return ((char *)NULL);
if (array_p (var) == 0)
return (ind == 0 ? savestring (value_cell (var)) : (char *)NULL);
return (ind == 0 ? value_cell (var) : (char *)NULL);
retval = array_reference (array_cell (var), ind);
if (retval)
retval = quote_escapes (retval);
}
return retval;
@ -623,11 +685,11 @@ array_value_internal (s, quoted, allow_all)
/* Return a string containing the elements described by the array and
subscript contained in S, obeying quoting for subscripts * and @. */
char *
array_value (s, quoted)
array_value (s, quoted, rtype)
char *s;
int quoted;
int quoted, *rtype;
{
return (array_value_internal (s, quoted, 1));
return (array_value_internal (s, quoted, 1, rtype));
}
/* Return the value of the array indexing expression S as a single string.
@ -635,11 +697,11 @@ array_value (s, quoted)
by other parts of the shell such as the arithmetic expression evaluator
in expr.c. */
char *
get_array_value (s, allow_all)
get_array_value (s, allow_all, rtype)
char *s;
int allow_all;
int allow_all, *rtype;
{
return (array_value_internal (s, 0, allow_all));
return (array_value_internal (s, 0, allow_all, rtype));
}
#endif /* ARRAY_VARS */

4
arrayfunc.h
View file

@ -42,8 +42,8 @@ extern void print_array_assignment __P((SHELL_VAR *, int));
extern arrayind_t array_expand_index __P((char *, int));
extern int valid_array_reference __P((char *));
extern char *array_value __P((char *, int));
extern char *get_array_value __P((char *, int));
extern char *array_value __P((char *, int, int *));
extern char *get_array_value __P((char *, int, int *));
extern char *array_variable_name __P((char *, char **, int *));
extern SHELL_VAR *array_variable_part __P((char *, char **, int *));

129
bashhist.c
View file

@ -57,6 +57,8 @@ extern int errno;
#endif
static int histignore_item_func __P((struct ign *));
static int check_history_control __P((char *));
static void really_add_history __P((char *));
static struct ignorevar histignore =
{
@ -87,8 +89,8 @@ int history_lines_in_file;
int history_expansion_inhibited;
#endif
/* By default, every line is saved in the history individually. I.e.,
if the user enters:
/* With the old default, every line was saved in the history individually.
I.e., if the user enters:
bash$ for i in a b c
> do
> echo $i
@ -114,9 +116,16 @@ int history_expansion_inhibited;
11 history
The user can then recall the whole command all at once instead
of just being able to recall one line at a time.
This is now enabled by default.
*/
int command_oriented_history = 1;
/* Set to 1 if the first line of a possibly-multi-line command was saved
in the history list. Managed by maybe_add_history(), but global so
the history-manipluating builtins can see it. */
int current_command_first_line_saved = 0;
/* Non-zero means to store newlines in the history list when using
command_oriented_history rather than trying to use semicolons. */
int literal_history;
@ -493,26 +502,61 @@ filter_comments (line)
}
#endif
/* Add LINE to the history list depending on the value of HISTORY_CONTROL. */
/* Check LINE against what HISTCONTROL says to do. Returns 1 if the line
should be saved; 0 if it should be discarded. */
static int
check_history_control (line)
char *line;
{
HIST_ENTRY *temp;
int r;
switch (history_control)
{
case 0: /* nothing */
return 1;
case 1: /* ignorespace */
return (*line != ' ');
case 3: /* ignoreboth */
if (*line == ' ')
return 0;
/* FALLTHROUGH if case == 3 (`ignoreboth') */
case 2: /* ignoredups */
using_history ();
temp = previous_history ();
r = (temp == 0 || STREQ (temp->line, line) == 0);
using_history ();
return r;
}
return 0;
}
/* Add LINE to the history list, handling possibly multi-line compound
commands. We note whether or not we save the first line of each command
(which is usually the entire command and history entry), and don't add
the second and subsequent lines of a multi-line compound command if we
didn't save the first line. We don't usually save shell comment lines in
compound commands in the history, because they could have the effect of
commenting out the rest of the command when the entire command is saved as
a single history entry (when COMMAND_ORIENTED_HISTORY is enabled). If
LITERAL_HISTORY is set, we're saving lines in the history with embedded
newlines, so it's OK to save comment lines. We also make sure to save
multiple-line quoted strings or other constructs. */
void
maybe_add_history (line)
char *line;
{
static int first_line_saved = 0;
HIST_ENTRY *temp;
hist_last_line_added = 0;
/* Don't use the value of history_control to affect the second
and subsequent lines of a multi-line command (old code did
this only when command_oriented_history is enabled). */
#if 0
if (command_oriented_history && current_command_line_count > 1)
#else
if (current_command_line_count > 1)
#endif
{
if (first_line_saved &&
if (current_command_first_line_saved &&
(literal_history || dstack.delimiter_depth != 0 || shell_comment (line) == 0))
bash_add_history (line);
return;
@ -520,36 +564,29 @@ maybe_add_history (line)
/* This is the first line of a (possible multi-line) command. Note whether
or not we should save the first line and remember it. */
first_line_saved = 0;
current_command_first_line_saved = check_add_history (line, 0);
}
switch (history_control)
/* Just check LINE against HISTCONTROL and HISTIGNORE and add it to the
history if it's OK. Used by `history -s' as well as maybe_add_history().
Returns 1 if the line was saved in the history, 0 otherwise. */
int
check_add_history (line, force)
char *line;
int force;
{
if (check_history_control (line) && history_should_ignore (line) == 0)
{
case 0:
first_line_saved = 1;
break;
case 1:
if (*line != ' ')
first_line_saved = 1;
break;
case 3:
if (*line == ' ')
break;
/* FALLTHROUGH if case == 3 (`ignoreboth') */
case 2:
using_history ();
temp = previous_history ();
if (temp == 0 || STREQ (temp->line, line) == 0)
first_line_saved = 1;
using_history ();
break;
if (force)
{
really_add_history (line);
using_history ();
}
else
bash_add_history (line);
return 1;
}
if (first_line_saved && history_should_ignore (line) == 0)
bash_add_history (line);
else
first_line_saved = 0;
return 0;
}
/* Add a line to the history list.
@ -607,14 +644,20 @@ bash_add_history (line)
}
if (add_it)
{
hist_last_line_added = 1;
add_history (line);
history_lines_this_session++;
}
really_add_history (line);
using_history ();
}
static void
really_add_history (line)
char *line;
{
hist_last_line_added = 1;
add_history (line);
history_lines_this_session++;
}
int
history_number ()
{

2
bashhist.h
View file

@ -29,6 +29,7 @@ extern int history_lines_in_file;
extern int history_expansion;
extern int history_control;
extern int command_oriented_history;
extern int current_command_first_line_saved;
extern int hist_last_line_added;
# if defined (BANG_HISTORY)
@ -46,6 +47,7 @@ extern int maybe_save_shell_history __P((void));
extern char *pre_process_line __P((char *, int, int));
extern void maybe_add_history __P((char *));
extern void bash_add_history __P((char *));
extern int check_add_history __P((char *, int));
extern int history_number __P((void));
extern void setup_history_ignore __P((char *));

323
bashline.c
View file

@ -1,6 +1,6 @@
/* bashline.c -- Bash's interface to the readline library. */
/* Copyright (C) 1987,1991 Free Software Foundation, Inc.
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -33,10 +33,15 @@
# include <grp.h>
#endif
#if defined (HAVE_NETDB_H)
# include <netdb.h>
#endif
#include <stdio.h>
#include "chartypes.h"
#include "bashansi.h"
#include "shell.h"
#include "input.h"
#include "builtins.h"
#include "bashhist.h"
#include "bashline.h"
@ -58,6 +63,14 @@
# include "pcomplete.h"
#endif
/* These should agree with the defines for emacs_mode and vi_mode in
rldefs.h, even though that's not a public readline header file. */
#ifndef EMACS_EDITING_MODE
# define NO_EDITING_MODE -1
# define EMACS_EDITING_MODE 1
# define VI_EDITING_MODE 0
#endif
#if defined (BRACE_COMPLETION)
extern int bash_brace_completion __P((int, int));
#endif /* BRACE_COMPLETION */
@ -170,13 +183,16 @@ static int bash_possible_command_completions __P((int, int));
static char *glob_complete_word __P((const char *, int));
static int bash_glob_completion_internal __P((int));
static int bash_glob_complete_word __P((int, int));
static int bash_glob_expand_word __P((int, int));
static int bash_glob_list_expansions __P((int, int));
#endif /* SPECIFIC_COMPLETION_FUNCTIONS */
static int edit_and_execute_command __P((int, int, int, char *));
#if defined (VI_MODE)
static int vi_edit_and_execute_command __P((int, int));
#endif
static int emacs_edit_and_execute_command __P((int, int));
/* Non-zero once initalize_readline () has been called. */
int bash_readline_initialized = 0;
@ -213,7 +229,7 @@ posix_readline_initialize (on_or_off)
if (on_or_off)
rl_variable_bind ("comment-begin", "#");
#if defined (VI_MODE)
rl_bind_key_in_map (CTRL('I'), on_or_off ? rl_insert : rl_complete, vi_insertion_keymap);
rl_bind_key_in_map (CTRL ('I'), on_or_off ? rl_insert : rl_complete, vi_insertion_keymap);
#endif
}
@ -275,6 +291,7 @@ initialize_readline ()
rl_add_defun ("operate-and-get-next", operate_and_get_next, -1);
rl_add_defun ("display-shell-version", display_shell_version, -1);
rl_add_defun ("edit-and-execute-command", emacs_edit_and_execute_command, -1);
#if defined (BRACE_COMPLETION)
rl_add_defun ("complete-into-braces", bash_brace_completion, -1);
@ -291,6 +308,7 @@ initialize_readline ()
rl_add_defun ("possible-variable-completions", bash_possible_variable_completions, -1);
rl_add_defun ("complete-command", bash_complete_command, -1);
rl_add_defun ("possible-command-completions", bash_possible_command_completions, -1);
rl_add_defun ("glob-complete-word", bash_glob_complete_word, -1);
rl_add_defun ("glob-expand-word", bash_glob_expand_word, -1);
rl_add_defun ("glob-list-expansions", bash_glob_list_expansions, -1);
#endif
@ -341,6 +359,7 @@ initialize_readline ()
rl_bind_key_in_map ('!', bash_complete_command, emacs_meta_keymap);
rl_bind_key_in_map ('!', bash_possible_command_completions, emacs_ctlx_keymap);
rl_bind_key_in_map ('g', bash_glob_complete_word, emacs_meta_keymap);
rl_bind_key_in_map ('*', bash_glob_expand_word, emacs_ctlx_keymap);
rl_bind_key_in_map ('g', bash_glob_list_expansions, emacs_ctlx_keymap);
@ -358,6 +377,8 @@ initialize_readline ()
/* Tell the filename completer we want a chance to ignore some names. */
rl_ignore_some_completions_function = filename_completion_ignore;
/* Bind C-xC-e to invoke emacs and run result as commands. */
rl_bind_key_in_map (CTRL ('E'), emacs_edit_and_execute_command, emacs_ctlx_keymap);
#if defined (VI_MODE)
rl_bind_key_in_map ('v', vi_edit_and_execute_command, vi_movement_keymap);
# if defined (ALIAS)
@ -378,8 +399,14 @@ initialize_readline ()
rl_filename_dequoting_function = bash_dequote_filename;
rl_char_is_quoted_p = char_is_quoted;
#if 0
/* This is superfluous and makes it impossible to use tab completion in
vi mode even when explicitly binding it in ~/.inputrc. sv_strict_posix()
should already have called posix_readline_initialize() when
posixly_correct was set. */
if (posixly_correct)
posix_readline_initialize (1);
#endif
bash_readline_initialized = 1;
}
@ -491,13 +518,10 @@ static void
add_host_name (name)
char *name;
{
size_t size;
if (hostname_list_length + 2 > hostname_list_size)
{
hostname_list_size = (hostname_list_size + 32) - (hostname_list_size % 32);
size = hostname_list_size * sizeof (char *);
hostname_list = (char **)xrealloc (hostname_list, size);
hostname_list = strvec_resize (hostname_list, hostname_list_size);
}
hostname_list[hostname_list_length++] = savestring (name);
@ -613,7 +637,7 @@ hostnames_matching (text)
what is desired. */
if (*text == '\0')
{
result = alloc_array (1 + hostname_list_length);
result = strvec_create (1 + hostname_list_length);
for (i = 0; i < hostname_list_length; i++)
result[i] = hostname_list[i];
result[i] = (char *)NULL;
@ -632,7 +656,7 @@ hostnames_matching (text)
if (nmatch >= (rsize - 1))
{
rsize = (rsize + 16) - (rsize % 16);
result = (char **)xrealloc (result, rsize * sizeof (char *));
result = strvec_resize (result, rsize);
}
result[nmatch++] = hostname_list[i];
@ -680,16 +704,17 @@ operate_and_get_next (count, c)
return 0;
}
#if defined (VI_MODE)
/* This vi mode command causes VI_EDIT_COMMAND to be run on the current
command being entered (if no explicit argument is given), otherwise on
a command from the history file. */
#define VI_EDIT_COMMAND "fc -e ${VISUAL:-${EDITOR:-vi}}"
#define VI_EDIT_COMMAND "fc -e ${VISUAL:-${EDITOR:-vi}}"
#define EMACS_EDIT_COMMAND "fc -e ${VISUAL:-${EDITOR:-emacs}}"
static int
vi_edit_and_execute_command (count, c)
int count, c;
edit_and_execute_command (count, c, editing_mode, edit_command)
int count, c, editing_mode;
char *edit_command;
{
char *command;
int r, cclc, rrs;
@ -702,8 +727,8 @@ vi_edit_and_execute_command (count, c)
if (rl_explicit_arg)
{
command = (char *)xmalloc (strlen (VI_EDIT_COMMAND) + 8);
sprintf (command, "%s %d", VI_EDIT_COMMAND, count);
command = (char *)xmalloc (strlen (edit_command) + 8);
sprintf (command, "%s %d", edit_command, count);
}
else
{
@ -716,9 +741,13 @@ vi_edit_and_execute_command (count, c)
bash_add_history ("");
history_lines_this_session++;
using_history ();
command = savestring (VI_EDIT_COMMAND);
command = savestring (edit_command);
}
r = parse_and_execute (command, "v", SEVAL_NOHIST);
/* Now, POSIX.1-2001 and SUSv3 say that the commands executed from the
temporary file should be placed into the history. We don't do that
yet. */
r = parse_and_execute (command, (editing_mode == VI_EDITING_MODE) ? "v" : "C-xC-e", SEVAL_NOHIST);
current_command_line_count = cclc;
@ -734,8 +763,23 @@ vi_edit_and_execute_command (count, c)
return r;
}
#if defined (VI_MODE)
static int
vi_edit_and_execute_command (count, c)
int count, c;
{
return (edit_and_execute_command (count, c, VI_EDITING_MODE, VI_EDIT_COMMAND));
}
#endif /* VI_MODE */
static int
emacs_edit_and_execute_command (count, c)
int count, c;
{
return (edit_and_execute_command (count, c, EMACS_EDITING_MODE, EMACS_EDIT_COMMAND));
}
#if defined (ALIAS)
static int
posix_edit_macros (count, key)
@ -927,7 +971,7 @@ attempt_shell_completion (text, start, end)
#if defined (PROGRAMMABLE_COMPLETION)
/* Attempt programmable completion. */
if (!matches && in_command_position == 0 && prog_completion_enabled &&
(num_progcomps () > 0) && current_prompt_string == ps1_prompt)
(progcomp_size () > 0) && current_prompt_string == ps1_prompt)
{
int s, e, foundcs;
char *n;
@ -955,6 +999,9 @@ attempt_shell_completion (text, start, end)
sure that readline knows it. */
if (foundcs & COPT_FILENAMES)
rl_filename_completion_desired = 1;
/* If the user doesn't want a space appended, tell readline. */
if (foundcs & COPT_NOSPACE)
rl_completion_suppress_append = 1;
/* Turn what the programmable completion code returns into what
readline wants. I should have made compute_lcd_of_matches
external... */
@ -977,7 +1024,7 @@ attempt_shell_completion (text, start, end)
/* If the word starts in `~', and there is no slash in the word, then
try completing this word as a username. */
if (!matches && *text == '~' && !strchr (text, '/'))
if (!matches && *text == '~' && !xstrchr (text, '/'))
matches = rl_completion_matches (text, rl_username_completion_function);
/* Another one. Why not? If the word starts in '@', then look through
@ -1005,6 +1052,25 @@ attempt_shell_completion (text, start, end)
filenames and leave directories in the match list. */
if (matches == (char **)NULL)
rl_ignore_some_completions_function = bash_ignore_filenames;
else if (matches[1] == 0 && *matches[0] != '/')
/* Turn off rl_filename_completion_desired so readline doesn't
append a slash if there is a directory with the same name
in the current directory, or other filename-specific things.
If the name begins with a slash, we're either completing a
full pathname or a directory pathname, and readline won't be
looking in the current directory anyway, so there's no
conflict. */
rl_filename_completion_desired = 0;
else if (matches[0] && matches[1] && STREQ (matches[0], matches[1]) && *matches[0] != '/')
/* There are multiple instances of the same match (duplicate
completions haven't yet been removed). In this case, all of
the matches will be the same, and the duplicate removal code
will distill them all down to one. We turn off
rl_filename_completion_desired for the same reason as above.
Remember: we only care if there's eventually a single unique
completion. If there are multiple completions this won't
make a difference and the problem won't occur. */
rl_filename_completion_desired = 0;
}
}
@ -1015,9 +1081,9 @@ attempt_shell_completion (text, start, end)
matches = rl_completion_matches (text, glob_complete_word);
/* A glob expression that matches more than one filename is problematic.
If we match more than one filename, punt. */
if (matches && matches[1])
if (matches && matches[1] && rl_completion_type == TAB)
{
free_array (matches);
strvec_dispose (matches);
matches = (char **)0;
}
}
@ -1064,7 +1130,7 @@ command_word_completion_function (hint_text, state)
/* Perform tilde expansion on what's passed, so we don't end up
passing filenames with tildes directly to stat(). */
if (*hint_text == '~')
hint = bash_tilde_expand (hint_text);
hint = bash_tilde_expand (hint_text, 0);
else
hint = savestring (hint_text);
hint_len = strlen (hint);
@ -1195,7 +1261,7 @@ command_word_completion_function (hint_text, state)
{
char *t;
t = bash_tilde_expand (current_path);
t = bash_tilde_expand (current_path, 0);
free (current_path);
current_path = t;
}
@ -1203,8 +1269,7 @@ command_word_completion_function (hint_text, state)
if (filename_hint)
free (filename_hint);
filename_hint = (char *)xmalloc (2 + strlen (current_path) + hint_len);
sprintf (filename_hint, "%s/%s", current_path, hint);
filename_hint = sh_makepath (current_path, hint, 0);
free (current_path);
}
@ -1304,8 +1369,31 @@ command_subst_completion_function (text, state)
filename_text = savestring (text);
if (matches)
free (matches);
matches = rl_completion_matches (filename_text, command_word_completion_function);
cmd_index = 0;
/*
* At this point we can entertain the idea of re-parsing
* `filename_text' into a (possibly incomplete) command name and
* arguments, and doing completion based on that. This is
* currently very rudimentary, but it is a small improvement.
*/
for (value = filename_text + strlen (filename_text) - 1; value > filename_text; value--)
if (whitespace (*value) || member (*value, COMMAND_SEPARATORS))
break;
if (value <= filename_text)
matches = rl_completion_matches (filename_text, command_word_completion_function);
else
{
value++;
start_len += value - filename_text;
if (whitespace (value[-1]))
matches = rl_completion_matches (value, rl_filename_completion_function);
else
matches = rl_completion_matches (value, command_word_completion_function);
}
/* If there is more than one match, rl_completion_matches has already
put the lcd in matches[0]. Skip over it. */
cmd_index = matches && matches[0] && matches[1];
}
if (!matches || !matches[cmd_index])
@ -1359,7 +1447,7 @@ variable_completion_function (text, state)
namelen = strlen (varname);
if (varlist)
free_array (varlist);
strvec_dispose (varlist);
varlist = all_variables_matching_prefix (varname);
varlist_index = 0;
@ -1432,6 +1520,67 @@ hostname_completion_function (text, state)
return ((char *)NULL);
}
/*
* A completion function for service names from /etc/services (or wherever).
*/
char *
bash_servicename_completion_function (text, state)
const char *text;
int state;
{
#if defined (__WIN32__) || defined (__OPENNT) || !defined (HAVE_GETSERVENT)
return ((char *)NULL);
#else
static char *sname = (char *)NULL;
static struct servent *srvent;
static int snamelen, firstc;
char *value;
char **alist, *aentry;
int afound;
if (state == 0)
{
FREE (sname);
firstc = *text;
sname = savestring (text);
snamelen = strlen (sname);
setservent (0);
}
while (srvent = getservent ())
{
afound = 0;
if (snamelen == 0 || (STREQN (sname, srvent->s_name, snamelen)))
break;
/* Not primary, check aliases */
for (alist = srvent->s_aliases; aentry = *alist; alist++)
{
if (STREQN (sname, aentry, snamelen))
{
afound = 1;
break;
}
}
if (afound)
break;
}
if (srvent == 0)
{
endservent ();
return ((char *)NULL);
}
value = afound ? savestring (aentry) : savestring (srvent->s_name);
return value;
#endif
}
/*
* A completion function for group names from /etc/group (or wherever).
*/
char *
bash_groupname_completion_function (text, state)
const char *text;
@ -1516,7 +1665,7 @@ maybe_make_readline_line (new_line)
rl_add_undo (UNDO_BEGIN, 0, 0, 0);
rl_delete_text (0, rl_point);
rl_point = rl_end = 0;
rl_point = rl_end = rl_mark = 0;
rl_insert_text (new_line);
rl_add_undo (UNDO_END, 0, 0, 0);
}
@ -1777,9 +1926,9 @@ _ignore_completion_names (names, name_func)
filenames. The pointers are copied back to NAMES when done. */
for (nidx = 1; names[nidx]; nidx++)
;
newnames = alloc_array (nidx + 1);
newnames = strvec_create (nidx + 1);
#ifdef NO_FORCE_FIGNORE
oldnames = alloc_array (nidx - 1);
oldnames = strvec_create (nidx - 1);
oidx = 0;
#endif
@ -1887,7 +2036,7 @@ test_for_directory (name)
struct stat finfo;
char *fn;
fn = bash_tilde_expand (name);
fn = bash_tilde_expand (name, 0);
if (stat (fn, &finfo) != 0)
{
free (fn);
@ -1935,13 +2084,13 @@ bash_directory_completion_hook (dirname)
local_dirname = *dirname;
#if 0
should_expand_dirname = strchr (local_dirname, '$') || strchr (local_dirname, '`');
should_expand_dirname = xstrchr (local_dirname, '$') || xstrchr (local_dirname, '`');
#else
if (strchr (local_dirname, '$'))
if (xstrchr (local_dirname, '$'))
should_expand_dirname = 1;
else
{
t = strchr (local_dirname, '`');
t = xstrchr (local_dirname, '`');
if (t && unclosed_pair (local_dirname, strlen (local_dirname), "`") == 0)
should_expand_dirname = 1;
}
@ -1950,7 +2099,7 @@ bash_directory_completion_hook (dirname)
if (should_expand_dirname)
{
new_dirname = savestring (local_dirname);
wl = expand_string (new_dirname, 0);
wl = expand_prompt_string (new_dirname, 0); /* does the right thing */
if (wl)
{
*dirname = string_list (wl);
@ -2016,11 +2165,7 @@ build_history_completion_array ()
/* First, clear out the current dynamic history completion list. */
if (harry_size)
{
for (i = 0; history_completion_array[i]; i++)
free (history_completion_array[i]);
free (history_completion_array);
strvec_dispose (history_completion_array);
history_completion_array = (char **)NULL;
harry_size = 0;
harry_len = 0;
@ -2040,11 +2185,7 @@ build_history_completion_array ()
for (j = 0; tokens && tokens[j]; j++)
{
if (harry_len + 2 > harry_size)
{
harry_size += 10;
history_completion_array = (char **)xrealloc
(history_completion_array, harry_size * sizeof (char *));
}
history_completion_array = strvec_resize (history_completion_array, harry_size += 10);
history_completion_array[harry_len++] = tokens[j];
history_completion_array[harry_len] = (char *)NULL;
@ -2053,7 +2194,7 @@ build_history_completion_array ()
}
/* Sort the complete list of tokens. */
qsort (history_completion_array, harry_len, sizeof (char *), (QSFUNC *)qsort_string_compare);
qsort (history_completion_array, harry_len, sizeof (char *), (QSFUNC *)strvec_strcmp);
}
}
@ -2097,6 +2238,7 @@ dynamic_complete_history (count, key)
rl_completion_entry_function = history_completion_generator;
rl_attempted_completion_function = (rl_completion_func_t *)NULL;
/* XXX - use rl_completion_mode here? */
if (rl_last_func == dynamic_complete_history)
r = rl_complete_internal ('?');
else
@ -2112,7 +2254,7 @@ static int
bash_complete_username (ignore, ignore2)
int ignore, ignore2;
{
return bash_complete_username_internal (TAB);
return bash_complete_username_internal (rl_completion_mode (bash_complete_username));
}
static int
@ -2133,7 +2275,7 @@ static int
bash_complete_filename (ignore, ignore2)
int ignore, ignore2;
{
return bash_complete_filename_internal (TAB);
return bash_complete_filename_internal (rl_completion_mode (bash_complete_filename));
}
static int
@ -2176,7 +2318,7 @@ static int
bash_complete_hostname (ignore, ignore2)
int ignore, ignore2;
{
return bash_complete_hostname_internal (TAB);
return bash_complete_hostname_internal (rl_completion_mode (bash_complete_hostname));
}
static int
@ -2190,7 +2332,7 @@ static int
bash_complete_variable (ignore, ignore2)
int ignore, ignore2;
{
return bash_complete_variable_internal (TAB);
return bash_complete_variable_internal (rl_completion_mode (bash_complete_variable));
}
static int
@ -2204,7 +2346,7 @@ static int
bash_complete_command (ignore, ignore2)
int ignore, ignore2;
{
return bash_complete_command_internal (TAB);
return bash_complete_command_internal (rl_completion_mode (bash_complete_command));
}
static int
@ -2235,6 +2377,9 @@ bash_complete_command_internal (what_to_do)
return bash_specific_completion (what_to_do, command_word_completion_function);
}
static char *globtext;
static char *globorig;
static char *
glob_complete_word (text, state)
const char *text;
@ -2242,14 +2387,30 @@ glob_complete_word (text, state)
{
static char **matches = (char **)NULL;
static int ind;
int glen;
char *ret;
if (state == 0)
{
rl_filename_completion_desired = 1;
if (matches)
free (matches);
matches = shell_glob_filename (text);
FREE (matches);
if (globorig != globtext)
FREE (globorig);
FREE (globtext);
if (rl_explicit_arg)
{
globorig = savestring (text);
glen = strlen (text);
globtext = (char *)xmalloc (glen + 2);
strcpy (globtext, text);
globtext[glen] = '*';
globtext[glen+1] = '\0';
}
else
globtext = globorig = savestring (text);
matches = shell_glob_filename (globtext);
if (GLOB_FAILED (matches))
matches = (char **)NULL;
ind = 0;
@ -2267,6 +2428,37 @@ bash_glob_completion_internal (what_to_do)
return bash_specific_completion (what_to_do, glob_complete_word);
}
/* A special quoting function so we don't end up quoting globbing characters
in the word if there are no matches or multiple matches. */
static char *
bash_glob_quote_filename (s, rtype, qcp)
char *s;
int rtype;
char *qcp;
{
if (globorig && qcp && *qcp == '\0' && STREQ (s, globorig))
return (savestring (s));
else
return (bash_quote_filename (s, rtype, qcp));
}
static int
bash_glob_complete_word (count, key)
int count, key;
{
int r;
rl_quote_func_t *orig_quoting_function;
rl_explicit_arg = 1; /* force `*' append */
orig_quoting_function = rl_filename_quoting_function;
rl_filename_quoting_function = bash_glob_quote_filename;
r = bash_glob_completion_internal (rl_completion_mode (bash_glob_complete_word));
rl_filename_quoting_function = orig_quoting_function;
return r;
}
static int
bash_glob_expand_word (count, key)
int count, key;
@ -2372,7 +2564,7 @@ quote_word_break_chars (text)
}
/* OK, we have an unquoted character. Check its presence in
rl_completer_word_break_characters. */
if (strchr (rl_completer_word_break_characters, *s))
if (xstrchr (rl_completer_word_break_characters, *s))
*r++ = '\\';
*r++ = *s;
}
@ -2384,7 +2576,8 @@ quote_word_break_chars (text)
depending on the value of completion_quoting_style. If we're
completing using backslashes, we need to quote some additional
characters (those that readline treats as word breaks), so we call
quote_word_break_chars on the result. */
quote_word_break_chars on the result. This returns newly-allocated
memory. */
static char *
bash_quote_filename (s, rtype, qcp)
char *s;
@ -2405,7 +2598,7 @@ bash_quote_filename (s, rtype, qcp)
mtext = s;
if (mtext[0] == '~' && rtype == SINGLE_MATCH)
mtext = bash_tilde_expand (s);
mtext = bash_tilde_expand (s, 0);
cs = completion_quoting_style;
/* Might need to modify the default completion style based on *qcp,
@ -2414,7 +2607,7 @@ bash_quote_filename (s, rtype, qcp)
the word being completed contains newlines, since those are not
quoted correctly using backslashes (a backslash-newline pair is
special to the shell parser). */
if (*qcp == '\0' && cs == COMPLETE_BSQUOTE && strchr (mtext, '\n'))
if (*qcp == '\0' && cs == COMPLETE_BSQUOTE && xstrchr (mtext, '\n'))
cs = COMPLETE_SQUOTE;
else if (*qcp == '"')
cs = COMPLETE_DQUOTE;
@ -2422,11 +2615,11 @@ bash_quote_filename (s, rtype, qcp)
cs = COMPLETE_SQUOTE;
#if defined (BANG_HISTORY)
else if (*qcp == '\0' && history_expansion && cs == COMPLETE_DQUOTE &&
history_expansion_inhibited == 0 && strchr (mtext, '!'))
history_expansion_inhibited == 0 && xstrchr (mtext, '!'))
cs = COMPLETE_BSQUOTE;
if (*qcp == '"' && history_expansion && cs == COMPLETE_DQUOTE &&
history_expansion_inhibited == 0 && strchr (mtext, '!'))
history_expansion_inhibited == 0 && xstrchr (mtext, '!'))
{
cs = COMPLETE_BSQUOTE;
*qcp = '\0';
@ -2483,6 +2676,8 @@ bash_execute_unix_command (count, key)
Keymap xkmap; /* unix command executing keymap */
register int i;
char *cmd;
int old_line_count;
int *ts;
/* First, we need to find the right command to execute. This is tricky,
because we might have already indirected into another keymap. */
@ -2518,8 +2713,14 @@ bash_execute_unix_command (count, key)
rl_crlf (); /* move to a new line */
old_line_count = current_command_line_count;
ts = save_token_state ();
cmd = savestring (cmd);
parse_and_execute (cmd, "bash_execute_unix_command", 0);
parse_and_execute (cmd, "bash_execute_unix_command", SEVAL_NOHIST);
current_command_line_count = old_line_count;
restore_token_state (ts);
/* and restore the readline buffer and display after command execution. */
rl_forced_update_display ();

1
bashline.h
View file

@ -36,6 +36,7 @@ extern int bind_keyseq_to_unix_command __P((char *));
/* Used by programmable completion code. */
extern char *command_word_completion_function __P((const char *, int));
extern char *bash_groupname_completion_function __P((const char *, int));
extern char *bash_servicename_completion_function __P((const char *, int));
extern char **get_hostname_list __P((void));
extern void clear_hostname_list __P((void));

6
bashtypes.h
View file

@ -1,4 +1,4 @@
/* bashtypes.h -- <sys/types.h> with special handling for crays. */
/* bashtypes.h -- Bash system types. */
/* Copyright (C) 1993 Free Software Foundation, Inc.
@ -31,4 +31,8 @@
# undef word
#endif
#if defined (HAVE_INTTYPES_H)
# include <inttypes.h>
#endif
#endif /* _BASHTYPES_H_ */

2
bracecomp.c
View file

@ -152,7 +152,7 @@ hack_braces_completion (names)
register int i;
char *temp;
temp = really_munge_braces (names, 1, array_len (names), 0);
temp = really_munge_braces (names, 1, strvec_len (names), 0);
for (i = 0; names[i]; ++i)
{

89
braces.c
View file

@ -1,6 +1,6 @@
/* braces.c -- code for doing word expansion in curly braces. */
/* Copyright (C) 1987,1991 Free Software Foundation, Inc.
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -38,6 +38,8 @@
#endif /* SHELL */
#include "general.h"
#include "shmbutil.h"
#define brace_whitespace(c) (!(c) || (c) == ' ' || (c) == '\t' || (c) == '\n')
/* Basic idea:
@ -53,8 +55,8 @@
int brace_arg_separator = ',';
#if defined (__P)
static int brace_gobbler __P((char *, int *, int));
static char **expand_amble __P((char *));
static int brace_gobbler __P((char *, size_t, int *, int));
static char **expand_amble __P((char *, size_t));
static char **array_concat __P((char **, char **));
#else
static int brace_gobbler ();
@ -68,13 +70,18 @@ brace_expand (text)
char *text;
{
register int start;
size_t tlen;
char *preamble, *postamble, *amble;
size_t alen;
char **tack, **result;
int i, j, c;
DECLARE_MBSTATE;
/* Find the text of the preamble. */
tlen = strlen (text);
i = 0;
c = brace_gobbler (text, &i, '{');
c = brace_gobbler (text, tlen, &i, '{');
preamble = (char *)xmalloc (i + 1);
strncpy (preamble, text, i);
@ -91,7 +98,7 @@ brace_expand (text)
/* Find the amble. This is the stuff inside this set of braces. */
start = ++i;
c = brace_gobbler (text, &i, '}');
c = brace_gobbler (text, tlen, &i, '}');
/* What if there isn't a matching close brace? */
if (c == 0)
@ -99,20 +106,23 @@ brace_expand (text)
#if defined (NOTDEF)
/* Well, if we found an unquoted BRACE_ARG_SEPARATOR between START
and I, then this should be an error. Otherwise, it isn't. */
for (j = start; j < i; j++)
j = start;
while (j < i)
{
if (text[j] == '\\')
{
j++;
ADVANCE_CHAR (text, tlen, j);
continue;
}
if (text[j] == brace_arg_separator)
{
free_array (result);
strvec_dispose (result);
report_error ("missing `}'");
throw_to_top_level ();
}
ADVANCE_CHAR (text, tlen, j);
}
#endif
free (preamble); /* Same as result[0]; see initialization. */
@ -122,24 +132,33 @@ brace_expand (text)
#if defined (SHELL)
amble = substring (text, start, i);
alen = i - start;
#else
amble = (char *)xmalloc (1 + (i - start));
strncpy (amble, &text[start], (i - start));
amble[i - start] = '\0';
alen = i - start;
amble[alen] = '\0';
#endif
#if defined (SHELL)
INITIALIZE_MBSTATE;
/* If the amble does not contain an unquoted BRACE_ARG_SEPARATOR, then
just return without doing any expansion. */
for (j = 0; amble[j]; j++)
j = 0;
while (amble[j])
{
if (amble[j] == '\\')
{
j++;
ADVANCE_CHAR (amble, alen, j);
continue;
}
if (amble[j] == brace_arg_separator)
break;
ADVANCE_CHAR (amble, alen, j);
}
if (!amble[j])
@ -153,14 +172,14 @@ brace_expand (text)
postamble = &text[i + 1];
tack = expand_amble (amble);
tack = expand_amble (amble, alen);
result = array_concat (result, tack);
free (amble);
free_array (tack);
strvec_dispose (tack);
tack = brace_expand (postamble);
result = array_concat (result, tack);
free_array (tack);
strvec_dispose (tack);
return (result);
}
@ -170,18 +189,23 @@ brace_expand (text)
expand each slot which needs it, until there are no more slots which
need it. */
static char **
expand_amble (text)
expand_amble (text, tlen)
char *text;
size_t tlen;
{
char **result, **partial;
char *tem;
int start, i, c;
DECLARE_MBSTATE;
result = (char **)NULL;
for (start = 0, i = 0, c = 1; c; start = ++i)
start = i = 0;
c = 1;
while (c)
{
c = brace_gobbler (text, &i, brace_arg_separator);
c = brace_gobbler (text, tlen, &i, brace_arg_separator);
#if defined (SHELL)
tem = substring (text, start, i);
#else
@ -196,11 +220,11 @@ expand_amble (text)
result = partial;
else
{
register int lr = array_len (result);
register int lp = array_len (partial);
register int lr = strvec_len (result);
register int lp = strvec_len (partial);
register int j;
result = (char **)xrealloc (result, (1 + lp + lr) * sizeof (char *));
result = strvec_resize (result, lp + lr + 1);
for (j = 0; j < lp; j++)
result[lr + j] = partial[j];
@ -209,6 +233,8 @@ expand_amble (text)
free (partial);
}
free (tem);
ADVANCE_CHAR (text, tlen, i);
start = i;
}
return (result);
}
@ -218,8 +244,9 @@ expand_amble (text)
quoting. Return the character that caused us to stop searching;
this is either the same as SATISFY, or 0. */
static int
brace_gobbler (text, indx, satisfy)
brace_gobbler (text, tlen, indx, satisfy)
char *text;
size_t tlen;
int *indx;
int satisfy;
{
@ -228,14 +255,17 @@ brace_gobbler (text, indx, satisfy)
int si;
char *t;
#endif
DECLARE_MBSTATE;
level = quoted = pass_next = 0;
for (i = *indx; c = text[i]; i++)
i = *indx;
while (c = text[i])
{
if (pass_next)
{
pass_next = 0;
ADVANCE_CHAR (text, tlen, i);
continue;
}
@ -244,6 +274,7 @@ brace_gobbler (text, indx, satisfy)
if (c == '\\' && (quoted == 0 || quoted == '"' || quoted == '`'))
{
pass_next = 1;
i++;
continue;
}
@ -251,12 +282,14 @@ brace_gobbler (text, indx, satisfy)
{
if (c == quoted)
quoted = 0;
ADVANCE_CHAR (text, tlen, i);
continue;
}
if (c == '"' || c == '\'' || c == '`')
{
quoted = c;
i++;
continue;
}
@ -268,6 +301,7 @@ brace_gobbler (text, indx, satisfy)
t = extract_command_subst (text, &si);
i = si;
free (t);
i++;
continue;
}
#endif
@ -280,7 +314,10 @@ brace_gobbler (text, indx, satisfy)
if (c == '{' &&
((!i || brace_whitespace (text[i - 1])) &&
(brace_whitespace (text[i + 1]) || text[i + 1] == '}')))
continue;
{
i++;
continue;
}
#if defined (SHELL)
/* If this is being compiled as part of bash, ignore the `{'
in a `${}' construct */
@ -293,6 +330,8 @@ brace_gobbler (text, indx, satisfy)
level++;
else if (c == '}' && level)
level--;
ADVANCE_CHAR (text, tlen, i);
}
*indx = i;
@ -312,13 +351,13 @@ array_concat (arr1, arr2)
register char **result;
if (arr1 == 0)
return (copy_array (arr2));
return (strvec_copy (arr2));
if (arr2 == 0)
return (copy_array (arr1));
return (strvec_copy (arr1));
len1 = array_len (arr1);
len2 = array_len (arr2);
len1 = strvec_len (arr1);
len2 = strvec_len (arr2);
result = (char **)xmalloc ((1 + (len1 * len2)) * sizeof (char *));

6
builtins.h
View file

@ -44,10 +44,10 @@
/* The thing that we build the array of builtins out of. */
struct builtin {
char *name; /* The name that the user types. */
sh_builtin_func_t *function; /* The address of the invoked function. */
sh_builtin_func_t *function; /* The address of the invoked function. */
int flags; /* One of the #defines above. */
char **long_doc; /* NULL terminated array of strings. */
char *short_doc; /* Short version of documenation. */
char * const *long_doc; /* NULL terminated array of strings. */
const char *short_doc; /* Short version of documenation. */
char *handle; /* for future use */
};

65
builtins/Makefile.in
View file

@ -28,32 +28,52 @@ CP = cp
EXEEXT = @EXEEXT@
prefix = @prefix@
srcdir = @srcdir@
VPATH = .:@srcdir@
topdir = @top_srcdir@
includedir = @includedir@
datadir = @datadir@
# Support an alternate destination root directory for package building
DESTDIR =
INSTALL = @INSTALL@
INSTALL_DATA = @INSTALL_DATA@
BUILD_DIR = @BUILD_DIR@
PROFILE_FLAGS = @PROFILE_FLAGS@
CFLAGS = @CFLAGS@
LOCAL_CFLAGS = @LOCAL_CFLAGS@ ${DEBUG}
CFLAGS_FOR_BUILD = @CFLAGS_FOR_BUILD@
CPPFLAGS = @CPPFLAGS@
CPPFLAGS_FOR_BUILD = @CPPFLAGS_FOR_BUILD@
LOCAL_CFLAGS = @LOCAL_CFLAGS@ ${DEBUG}
DEFS = @DEFS@
LOCAL_DEFS = @LOCAL_DEFS@
LDFLAGS = @LDFLAGS@ $(LOCAL_LDFLAGS) $(CFLAGS)
LOCAL_LDFLAGS = @LOCAL_LDFLAGS@
LIBS = @LIBS@
LDFLAGS = @LDFLAGS@ $(LOCAL_LDFLAGS) $(CFLAGS)
LDFLAGS_FOR_BUILD = $(LDFLAGS)
LOCAL_LDFLAGS = @LOCAL_LDFLAGS@
#LIBS_FOR_BUILD = @LIBS_FOR_BUILD@
LIBS_FOR_BUILD = $(LIBS)
BASHINCDIR = ${topdir}/include
RL_INCLUDEDIR = @RL_INCLUDEDIR@
HELPDIR = @HELPDIR@
MKDIRS = ${topdir}/support/mkdirs
INCLUDES = -I. -I.. @RL_INCLUDE@ -I$(topdir) -I$(BASHINCDIR) -I$(topdir)/lib -I$(srcdir)
CCFLAGS_FOR_BUILD = ${PROFILE_FLAGS} $(DEFS) $(LOCAL_DEFS) $(SYSTEM_FLAGS) \
$(CPPFLAGS) ${INCLUDES} $(LOCAL_CFLAGS)
BASE_CCFLAGS = ${PROFILE_FLAGS} $(DEFS) $(LOCAL_DEFS) $(SYSTEM_FLAGS) \
${INCLUDES} $(LOCAL_CFLAGS)
CCFLAGS = $(CCFLAGS_FOR_BUILD) $(CFLAGS)
CCFLAGS = $(BASE_CCFLAGS) $(CPPFLAGS) $(CFLAGS)
CCFLAGS_FOR_BUILD = $(BASE_CCFLAGS) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD)
GCC_LINT_FLAGS = -Wall -Wshadow -Wpointer-arith -Wcast-qual \
-Wcast-align -Wstrict-prototypes -Wconversion \
@ -61,6 +81,7 @@ GCC_LINT_FLAGS = -Wall -Wshadow -Wpointer-arith -Wcast-qual \
MKBUILTINS = mkbuiltins$(EXEEXT)
DIRECTDEFINE = -D $(srcdir)
HELPDIRDEFINE = @HELPDIRDEFINE@
# xxx this is bad style
RL_LIBSRC = $(topdir)/lib/readline
@ -124,7 +145,7 @@ builtext.h builtins.c: $(MKBUILTINS) $(DEFSRC)
@-if test -f builtins.c; then mv -f builtins.c old-builtins.c; fi
@-if test -f builtext.h; then mv -f builtext.h old-builtext.h; fi
./$(MKBUILTINS) -externfile builtext.h -structfile builtins.c \
-noproduction $(DIRECTDEFINE) $(DEFSRC)
-noproduction $(DIRECTDEFINE) $(HELPDIRDEFINE) $(DEFSRC)
@-if cmp -s old-builtext.h builtext.h 2>/dev/null; then \
mv old-builtext.h builtext.h; \
else \
@ -136,13 +157,28 @@ builtext.h builtins.c: $(MKBUILTINS) $(DEFSRC)
$(RM) old-builtins.c; \
fi
helpdoc: $(MKBUILTINS) $(DEFSRC)
./$(MKBUILTINS) ${HELPDIRDEFINE} -noproduction $(DIRECTDEFINE) $(DEFSRC)
install-help:
@-if test -n "${HELPDIR}" && test -d helpfiles ; then \
test -d ${HELPDIR} || ${SHELL} ${MKDIRS} $(DESTDIR)$(HELPDIR) ;\
( cd helpfiles ; \
for f in *; do \
echo installing $$f; \
${INSTALL_DATA} $$f $(DESTDIR)$(HELPDIR); \
done; ) ; \
fi
install: @HELPINSTALL@
mkbuiltins.o: ../config.h
mkbuiltins.o: mkbuiltins.c
$(RM) $@
$(CC_FOR_BUILD) -c $(CCFLAGS_FOR_BUILD) $<
mkbuiltins$(EXEEXT): mkbuiltins.o
$(CC_FOR_BUILD) $(PROFILE_FLAGS) $(LDFLAGS) -o $(MKBUILTINS) mkbuiltins.o $(LIBS)
$(CC_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $(MKBUILTINS) mkbuiltins.o $(LIBS_FOR_BUILD)
# rules for deficient makes, like SunOS
mkbuiltins.o: mkbuiltins.c
@ -163,13 +199,12 @@ psize.aux: psize.c
documentation: builtins.texi
$(OFILES): $(MKBUILTINS) ../config.h
builtins.texi: $(MKBUILTINS)
./$(MKBUILTINS) -documentonly $(DEFSRC)
clean:
$(RM) $(OFILES) $(CREATED_FILES) $(MKBUILTINS) mkbuiltins.o libbuiltins.a
-test -d helpfiles && $(RM) -r helpfiles
mostlyclean:
$(RM) $(OFILES) libbuiltins.a
@ -177,6 +212,8 @@ mostlyclean:
distclean maintainer-clean: clean
$(RM) Makefile
$(OFILES): $(MKBUILTINS) ../config.h
alias.o: alias.def
bind.o: bind.def
break.o: break.def
@ -293,6 +330,7 @@ builtin.o: $(topdir)/error.h $(topdir)/general.h $(topdir)/xmalloc.h $(topdir)/e
builtin.o: $(topdir)/quit.h $(srcdir)/common.h $(BASHINCDIR)/maxpath.h
builtin.o: $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h $(topdir)/subst.h
builtin.o: $(topdir)/shell.h $(topdir)/syntax.h $(topdir)/unwind_prot.h $(topdir)/variables.h $(topdir)/conftypes.h
builtin.o: $(srcdir)/bashgetopt.h
cd.o: $(topdir)/command.h ../config.h $(BASHINCDIR)/memalloc.h $(topdir)/error.h
cd.o: $(topdir)/general.h $(topdir)/xmalloc.h $(topdir)/quit.h $(topdir)/dispose_cmd.h
cd.o: $(topdir)/make_cmd.h $(topdir)/subst.h $(topdir)/externs.h
@ -308,7 +346,7 @@ declare.o: $(topdir)/error.h $(topdir)/general.h $(topdir)/xmalloc.h
declare.o: $(topdir)/quit.h $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h
declare.o: $(topdir)/subst.h $(topdir)/externs.h $(BASHINCDIR)/maxpath.h
declare.o: $(topdir)/shell.h $(topdir)/syntax.h $(topdir)/unwind_prot.h $(topdir)/variables.h $(topdir)/conftypes.h
declare.o: $(topdir)/arrayfunc.h
declare.o: $(topdir)/arrayfunc.h $(srcdir)/bashgetopt.h
echo.o: $(topdir)/command.h ../config.h $(BASHINCDIR)/memalloc.h $(topdir)/error.h
echo.o: $(topdir)/general.h $(topdir)/xmalloc.h $(topdir)/subst.h $(topdir)/externs.h
echo.o: $(topdir)/quit.h $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h
@ -351,7 +389,7 @@ fc.o: $(topdir)/quit.h $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h
fc.o: $(topdir)/subst.h $(topdir)/externs.h $(topdir)/shell.h $(topdir)/syntax.h
fc.o: $(topdir)/flags.h $(topdir)/unwind_prot.h $(topdir)/variables.h $(topdir)/conftypes.h
fc.o: $(topdir)/bashansi.h $(BASHINCDIR)/ansi_stdlib.h $(BASHINCDIR)/chartypes.h
fg_bg.o: $(topdir)/bashtypes.h
fg_bg.o: $(topdir)/bashtypes.h $(srcdir)/bashgetopt.h
fg_bg.o: $(topdir)/command.h ../config.h $(BASHINCDIR)/memalloc.h
fg_bg.o: $(topdir)/error.h $(topdir)/general.h $(topdir)/xmalloc.h
fg_bg.o: $(topdir)/quit.h $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h
@ -373,7 +411,7 @@ help.o: $(topdir)/error.h $(topdir)/general.h $(topdir)/xmalloc.h
help.o: $(topdir)/quit.h $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h
help.o: $(topdir)/subst.h $(topdir)/externs.h $(BASHINCDIR)/maxpath.h
help.o: $(topdir)/shell.h $(topdir)/syntax.h $(topdir)/unwind_prot.h $(topdir)/variables.h $(topdir)/conftypes.h
help.o: ${srcdir}/common.h ../version.h
help.o: ${srcdir}/common.h
history.o: $(topdir)/bashtypes.h
history.o: $(topdir)/command.h ../config.h $(BASHINCDIR)/memalloc.h
history.o: $(topdir)/error.h $(topdir)/general.h $(topdir)/xmalloc.h
@ -449,6 +487,7 @@ source.o: $(topdir)/error.h $(topdir)/general.h $(topdir)/xmalloc.h $(topdir)/fi
source.o: $(topdir)/quit.h $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h
source.o: $(topdir)/subst.h $(topdir)/externs.h $(BASHINCDIR)/maxpath.h
source.o: $(topdir)/shell.h $(topdir)/syntax.h $(topdir)/unwind_prot.h $(topdir)/variables.h $(topdir)/conftypes.h
source.o: $(srcdir)/bashgetopt.h
suspend.o: $(topdir)/command.h ../config.h $(BASHINCDIR)/memalloc.h
suspend.o: $(topdir)/error.h $(topdir)/general.h $(topdir)/xmalloc.h
suspend.o: $(topdir)/quit.h $(topdir)/dispose_cmd.h $(topdir)/make_cmd.h

6
builtins/alias.def
View file

@ -1,7 +1,7 @@
This file is alias.def, from which is created alias.c
It implements the builtins "alias" and "unalias" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -120,7 +120,7 @@ alias_builtin (list)
print_alias (t);
else
{
builtin_error ("`%s' not found", name);
sh_notfound (name);
any_failed++;
}
}
@ -180,7 +180,7 @@ unalias_builtin (list)
remove_alias (alias->name);
else
{
builtin_error ("`%s': not an alias", list->word->word);
sh_notfound (list->word->word);
aflag++;
}

53
builtins/bashgetopt.c
View file

@ -1,6 +1,6 @@
/* bashgetopt.c -- `getopt' for use by the builtins. */
/* Copyright (C) 1992 Free Software Foundation, Inc.
/* Copyright (C) 1992-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -31,12 +31,14 @@ Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#include "../shell.h"
#include "common.h"
#define ERR(S, C) builtin_error("%s%c", (S), (C))
#define ISOPT(s) (((*(s) == '-') || (plus && *(s) == '+')) && (s)[1])
#define NOTOPT(s) (((*(s) != '-') && (!plus || *(s) != '+')) || (s)[1] == '\0')
static int sp;
char *list_optarg;
int list_optopt;
int list_opttype;
static WORD_LIST *lhead = (WORD_LIST *)NULL;
WORD_LIST *lcurrent = (WORD_LIST *)NULL;
@ -50,12 +52,11 @@ char *opts;
register int c;
register char *cp;
int plus; /* nonzero means to handle +option */
static char errstr[3] = { '-', '\0', '\0' };
if (*opts == '+') {
plus = 1;
plus = *opts == '+';
if (plus)
opts++;
} else
plus = 0;
if (list == 0) {
list_optarg = (char *)NULL;
@ -71,8 +72,7 @@ char *opts;
}
if (sp == 1) {
if (lcurrent == 0 ||
(lcurrent->word->word[0] != '-' || lcurrent->word->word[1] == '\0')) {
if (lcurrent == 0 || NOTOPT(lcurrent->word->word)) {
lhead = (WORD_LIST *)NULL;
loptend = lcurrent;
return(-1);
@ -83,12 +83,14 @@ char *opts;
loptend = lcurrent->next;
return(-1);
}
errstr[0] = list_opttype = lcurrent->word->word[0];
}
list_optopt = c = lcurrent->word->word[sp];
if (c == ':' || (cp = strchr(opts, c)) == NULL) {
ERR("illegal option: -", c);
errstr[1] = c;
sh_invalidopt (errstr);
if (lcurrent->word->word[++sp] == '\0') {
lcurrent = lcurrent->next;
sp = 1;
@ -108,7 +110,11 @@ char *opts;
lcurrent = lcurrent->next;
/* If the specifier is `;', don't set optarg if the next
argument looks like another option. */
#if 0
} else if (lcurrent->next && (*cp == ':' || lcurrent->next->word->word[0] != '-')) {
#else
} else if (lcurrent->next && (*cp == ':' || NOTOPT(lcurrent->next->word->word))) {
#endif
lcurrent = lcurrent->next;
list_optarg = lcurrent->word->word;
lcurrent = lcurrent->next;
@ -116,14 +122,15 @@ char *opts;
list_optarg = (char *)NULL;
lcurrent = lcurrent->next;
} else { /* lcurrent->next == NULL */
ERR("option requires an argument: -", c);
errstr[1] = c;
sh_needarg (errstr);
sp = 1;
list_optarg = (char *)NULL;
return('?');
}
sp = 1;
} else if (*cp == '#') {
/* optional numeric argument */
/* option requires a numeric argument */
if (lcurrent->word->word[sp+1]) {
if (DIGIT(lcurrent->word->word[sp+1])) {
list_optarg = lcurrent->word->word + sp + 1;
@ -131,12 +138,17 @@ char *opts;
} else
list_optarg = (char *)NULL;
} else {
if (lcurrent->next && legal_number(lcurrent->next->word->word, (long *)0)) {
if (lcurrent->next && legal_number(lcurrent->next->word->word, (intmax_t *)0)) {
lcurrent = lcurrent->next;
list_optarg = lcurrent->word->word;
lcurrent = lcurrent->next;
} else
} else {
errstr[1] = c;
sh_neednumarg (errstr);
sp = 1;
list_optarg = (char *)NULL;
return ('?');
}
}
} else {
@ -161,16 +173,3 @@ reset_internal_getopt ()
lhead = lcurrent = loptend = (WORD_LIST *)NULL;
sp = 1;
}
#ifdef INCLUDE_UNUSED
void
report_bad_option ()
{
char s[3];
s[0] = '-';
s[1] = list_optopt;
s[2] = '\0';
bad_option (s);
}
#endif

2
builtins/bashgetopt.h
View file

@ -28,12 +28,12 @@
extern char *list_optarg;
extern int list_optopt;
extern int list_opttype;
extern WORD_LIST *lcurrent;
extern WORD_LIST *loptend;
extern int internal_getopt __P((WORD_LIST *, char *));
extern void reset_internal_getopt __P((void));
extern void report_bad_option __P((void));
#endif /* !__BASH_GETOPT_H */

31
builtins/bind.def
View file

@ -1,7 +1,7 @@
This file is bind.def, from which is created bind.c.
It implements the builtin "bind" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -26,11 +26,12 @@ $PRODUCES bind.c
$BUILTIN bind
$DEPENDS_ON READLINE
$FUNCTION bind_builtin
$SHORT_DOC bind [-lpvsPVS] [-m keymap] [-f filename] [-q name] [-u name] [-r keyseq] [-x keyseq:shell-command] [keyseq:readline-function]
Bind a key sequence to a Readline function, or to a macro. The
syntax is equivalent to that found in ~/.inputrc, but must be
passed as a single argument: bind '"\C-x\C-r": re-read-init-file'.
Arguments we accept:
$SHORT_DOC bind [-lpvsPVS] [-m keymap] [-f filename] [-q name] [-u name] [-r keyseq] [-x keyseq:shell-command] [keyseq:readline-function or readline-command]
Bind a key sequence to a Readline function or a macro, or set
a Readline variable. The non-option argument syntax is equivalent
to that found in ~/.inputrc, but must be passed as a single argument:
bind '"\C-x\C-r": re-read-init-file'.
bind accepts the following options:
-m keymap Use `keymap' as the keymap for the duration of this
command. Acceptable keymap names are emacs,
emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move,
@ -40,8 +41,8 @@ Arguments we accept:
-p List functions and bindings in a form that can be
reused as input.
-r keyseq Remove the binding for KEYSEQ.
-x keyseq:shell-command Cause SHELL-COMMAND to be executed when KEYSEQ
is entered.
-x keyseq:shell-command Cause SHELL-COMMAND to be executed when
KEYSEQ is entered.
-f filename Read key bindings from FILENAME.
-q function-name Query about which keys invoke the named function.
-u function-name Unbind all keys which are bound to the named function.
@ -49,8 +50,8 @@ Arguments we accept:
-v List variable names and values in a form that can
be reused as input.
-S List key sequences that invoke macros and their values
-s List key sequences that invoke macros and their values in
a form that can be reused as input.
-s List key sequences that invoke macros and their values
in a form that can be reused as input.
$END
#if defined (READLINE)
@ -227,7 +228,7 @@ bind_builtin (list)
{
if (rl_read_init_file (initfile) != 0)
{
builtin_error ("cannot read %s: %s", initfile, strerror (errno));
builtin_error ("%s: cannot read: %s", initfile, strerror (errno));
BIND_RETURN (EXECUTION_FAILURE);
}
}
@ -242,7 +243,7 @@ bind_builtin (list)
{
if (rl_set_key (remove_seq, (rl_command_func_t *)NULL, rl_get_keymap ()) != 0)
{
builtin_error ("cannot unbind %s", remove_seq);
builtin_error ("`%s': cannot unbind", remove_seq);
BIND_RETURN (EXECUTION_FAILURE);
}
}
@ -277,7 +278,7 @@ query_bindings (name)
function = rl_named_function (name);
if (function == 0)
{
builtin_error ("unknown function name `%s'", name);
builtin_error ("`%s': unknown function name", name);
return EXECUTION_FAILURE;
}
@ -294,7 +295,7 @@ query_bindings (name)
printf ("\"%s\"%s", keyseqs[j], keyseqs[j + 1] ? ", " : ".\n");
if (keyseqs[j])
printf ("...\n");
free_array (keyseqs);
strvec_dispose (keyseqs);
return EXECUTION_SUCCESS;
}
@ -307,7 +308,7 @@ unbind_command (name)
function = rl_named_function (name);
if (function == 0)
{
builtin_error ("unknown function name `%s'", name);
builtin_error ("`%s': unknown function name", name);
return EXECUTION_FAILURE;
}

10
builtins/break.def
View file

@ -1,7 +1,7 @@
This file is break.def, from which is created break.c.
It implements the builtins "break" and "continue" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -59,7 +59,7 @@ int
break_builtin (list)
WORD_LIST *list;
{
long newbreak;
intmax_t newbreak;
if (check_loop_level () == 0)
return (EXECUTION_SUCCESS);
@ -68,7 +68,7 @@ break_builtin (list)
if (newbreak <= 0)
{
builtin_error ("loop count must be > 0");
sh_erange (list->word->word, "loop count");
breaking = loop_level;
return (EXECUTION_FAILURE);
}
@ -94,7 +94,7 @@ int
continue_builtin (list)
WORD_LIST *list;
{
long newcont;
intmax_t newcont;
if (check_loop_level () == 0)
return (EXECUTION_SUCCESS);
@ -103,7 +103,7 @@ continue_builtin (list)
if (newcont <= 0)
{
builtin_error ("loop count must be > 0");
sh_erange (list->word->word, "loop count");
breaking = loop_level;
return (EXECUTION_FAILURE);
}

11
builtins/builtin.def
View file

@ -1,7 +1,7 @@
This file is builtin.def, from which is created builtin.c.
It implements the builtin "builtin" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -39,6 +39,7 @@ $END
#include "../shell.h"
#include "common.h"
#include "bashgetopt.h"
extern char *this_command_name;
@ -51,10 +52,14 @@ builtin_builtin (list)
sh_builtin_func_t *function;
register char *command;
if (!list)
if (no_options (list))
return (EX_USAGE);
list = loptend; /* skip over possible `--' */
if (list == 0)
return (EXECUTION_SUCCESS);
command = (list->word->word);
command = list->word->word;
#if defined (DISABLED_BUILTINS)
function = builtin_address (command);
#else /* !DISABLED_BUILTINS */

47
builtins/cd.def
View file

@ -69,7 +69,7 @@ int cdable_vars;
$BUILTIN cd
$FUNCTION cd_builtin
$SHORT_DOC cd [-PL] [dir]
$SHORT_DOC cd [-L|-P] [dir]
Change the current directory to DIR. The variable $HOME is the
default DIR. The variable CDPATH defines the search path for
the directory containing DIR. Alternative directory names in CDPATH
@ -118,6 +118,19 @@ bindpwd (no_symlinks)
return (EXECUTION_SUCCESS);
}
/* Call get_working_directory to reset the value of
the_current_working_directory () */
static char *
resetpwd ()
{
char *tdir;
FREE (the_current_working_directory);
the_current_working_directory = (char *)NULL;
tdir = get_working_directory ("cd");
return (tdir);
}
#define LCD_DOVARS 0x001
#define LCD_DOSPELL 0x002
#define LCD_PRINTPATH 0x004
@ -137,7 +150,7 @@ cd_builtin (list)
#if defined (RESTRICTED_SHELL)
if (restricted)
{
builtin_error ("restricted");
sh_restricted ((char *)NULL);
return (EXECUTION_FAILURE);
}
#endif /* RESTRICTED_SHELL */
@ -350,7 +363,7 @@ change_to_directory (newdir, nolinks)
int nolinks;
{
char *t, *tdir;
int err;
int err, canon_failed;
tdir = (char *)NULL;
@ -370,20 +383,38 @@ change_to_directory (newdir, nolinks)
/* Use the canonicalized version of NEWDIR, or, if canonicalization
failed, use the non-canonical form. */
canon_failed = 0;
if (tdir && *tdir)
free (t);
else
{
FREE (tdir);
tdir = t;
canon_failed = 1;
}
/* In POSIX mode, if we're resolving symlinks logically and sh_canonpath
returns NULL (because it checks the path, it will return NULL if the
resolved path doesn't exist), fail immediately. */
if (posixly_correct && nolinks == 0 && canon_failed)
{
errno = ENOENT;
return (0);
}
/* If the chdir succeeds, update the_current_working_directory. */
if (chdir (nolinks ? newdir : tdir) == 0)
{
FREE (the_current_working_directory);
the_current_working_directory = tdir;
/* If canonicalization failed, but the chdir succeeded, reset the
shell's idea of the_current_working_directory. */
if (canon_failed)
resetpwd ();
else
{
FREE (the_current_working_directory);
the_current_working_directory = tdir;
}
return (1);
}
@ -400,9 +431,7 @@ change_to_directory (newdir, nolinks)
verbatim. If we succeed, reinitialize the_current_working_directory. */
if (chdir (newdir) == 0)
{
FREE (the_current_working_directory);
the_current_working_directory = (char *)NULL;
tdir = get_working_directory ("cd");
tdir = resetpwd ();
FREE (tdir);
return (1);

6
builtins/colon.def
View file

@ -1,7 +1,7 @@
This file is colon.def, from which is created colon.c.
It implements the builtin ":" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -22,21 +22,19 @@ Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
$PRODUCES colon.c
$BUILTIN :
$DOCNAME colon_builtin
$DOCNAME colon
$FUNCTION colon_builtin
$SHORT_DOC :
No effect; the command does nothing. A zero exit code is returned.
$END
$BUILTIN true
$DOCNAME true_builtin
$FUNCTION colon_builtin
$SHORT_DOC true
Return a successful result.
$END
$BUILTIN false
$DOCNAME false_builtin
$FUNCTION false_builtin
$SHORT_DOC false
Return an unsuccessful result.

12
builtins/command.def
View file

@ -1,7 +1,7 @@
This file is command.def, from which is created command.c.
It implements the builtin "command" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -78,10 +78,10 @@ command_builtin (list)
use_standard_path = 1;
break;
case 'V':
verbose = 2;
verbose = CDESC_SHORTDESC; /* look in common.h for constants */
break;
case 'v':
verbose = 4;
verbose = CDESC_REUSABLE; /* ditto */
break;
default:
builtin_usage ();
@ -99,10 +99,10 @@ command_builtin (list)
for (any_found = 0; list; list = list->next)
{
found = describe_command (list->word->word, verbose, 0);
found = describe_command (list->word->word, verbose);
if (found == 0)
builtin_error ("%s: not found", list->word->word);
sh_notfound (list->word->word);
any_found += found;
}
@ -112,7 +112,7 @@ command_builtin (list)
#if defined (RESTRICTED_SHELL)
if (use_standard_path && restricted)
{
builtin_error ("restricted: cannot use -p");
sh_restricted ("-p");
return (EXECUTION_FAILURE);
}
#endif

358
builtins/common.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -36,9 +36,7 @@
#if defined (PREFER_STDARG)
# include <stdarg.h>
#else
# if defined (PREFER_VARARGS)
# include <varargs.h>
# endif
# include <varargs.h>
#endif
#include "../bashansi.h"
@ -64,8 +62,7 @@
extern int errno;
#endif /* !errno */
extern int no_symbolic_links;
extern int indirection_level, startup_state, subshell_environment;
extern int indirection_level, subshell_environment;
extern int line_number;
extern int last_command_exit_value;
extern int running_trap;
@ -86,7 +83,6 @@ sh_builtin_func_t *this_shell_builtin = (sh_builtin_func_t *)NULL;
/* This is a lot like report_error (), but it is for shell builtins
instead of shell control structures, and it won't ever exit the
shell. */
#if defined (USE_VARARGS)
void
#if defined (PREFER_STDARG)
builtin_error (const char *format, ...)
@ -102,32 +98,18 @@ builtin_error (format, va_alist)
name = get_name_for_error ();
fprintf (stderr, "%s: ", name);
if (interactive_shell == 0)
fprintf (stderr, "line %d: ", executing_line_number ());
if (this_command_name && *this_command_name)
fprintf (stderr, "%s: ", this_command_name);
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
va_end (args);
fprintf (stderr, "\n");
}
#else /* !USE_VARARGS */
void
builtin_error (format, arg1, arg2, arg3, arg4, arg5)
char *format, *arg1, *arg2, *arg3, *arg4, *arg5;
{
if (this_command_name && *this_command_name)
fprintf (stderr, "%s: ", this_command_name);
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
fflush (stderr);
}
#endif /* !USE_VARARGS */
/* Print a usage summary for the currently-executing builtin command. */
void
@ -152,15 +134,6 @@ no_args (list)
}
}
/* Function called when one of the builtin commands detects a bad
option. */
void
bad_option (s)
char *s;
{
builtin_error ("unknown option: %s", s);
}
/* Check that no options were given to the currently-executing builtin,
and return 0 if there were options. */
int
@ -176,6 +149,119 @@ no_options (list)
return (0);
}
void
sh_needarg (s)
char *s;
{
builtin_error ("%s: option requires an argument", s);
}
void
sh_neednumarg (s)
char *s;
{
builtin_error ("%s: numeric argument required", s);
}
void
sh_notfound (s)
char *s;
{
builtin_error ("%s: not found", s);
}
/* Function called when one of the builtin commands detects an invalid
option. */
void
sh_invalidopt (s)
char *s;
{
builtin_error ("%s: invalid option", s);
}
void
sh_invalidoptname (s)
char *s;
{
builtin_error ("%s: invalid option name", s);
}
void
sh_invalidid (s)
char *s;
{
builtin_error ("`%s': not a valid identifier", s);
}
void
sh_invalidnum (s)
char *s;
{
builtin_error ("%s: invalid number", s);
}
void
sh_invalidsig (s)
char *s;
{
builtin_error ("%s: invalid signal specification", s);
}
void
sh_badpid (s)
char *s;
{
builtin_error ("`%s': not a pid or valid job spec", s);
}
void
sh_readonly (s)
const char *s;
{
builtin_error ("%s: readonly variable", s);
}
void
sh_erange (s, desc)
char *s, *desc;
{
if (s)
builtin_error ("%s: %s out of range", s, desc ? desc : "argument");
else
builtin_error ("%s out of range", desc ? desc : "argument");
}
#if defined (JOB_CONTROL)
void
sh_badjob (s)
char *s;
{
builtin_error ("%s: no such job", s);
}
void
sh_nojobs (s)
char *s;
{
if (s)
builtin_error ("%s: no job control");
else
builtin_error ("no job control");
}
#endif
#if defined (RESTRICTED_SHELL)
void
sh_restricted (s)
char *s;
{
if (s)
builtin_error ("%s: restricted", s);
else
builtin_error ("restricted");
}
#endif
/* **************************************************************** */
/* */
/* Shell positional parameter manipulation */
@ -192,7 +278,7 @@ make_builtin_argv (list, ip)
{
char **argv;
argv = word_list_to_argv (list, 0, 1, ip);
argv = strvec_from_word_list (list, 0, 1, ip);
argv[0] = this_command_name;
return argv;
}
@ -235,67 +321,6 @@ remember_args (list, destructive)
set_dollar_vars_changed ();
}
/* **************************************************************** */
/* */
/* Pushing and Popping variable contexts */
/* */
/* **************************************************************** */
static WORD_LIST **dollar_arg_stack = (WORD_LIST **)NULL;
static int dollar_arg_stack_slots;
static int dollar_arg_stack_index;
void
push_context ()
{
push_dollar_vars ();
variable_context++;
}
void
pop_context ()
{
pop_dollar_vars ();
kill_all_local_variables ();
variable_context--;
}
/* Save the existing positional parameters on a stack. */
void
push_dollar_vars ()
{
if (dollar_arg_stack_index + 2 > dollar_arg_stack_slots)
{
dollar_arg_stack = (WORD_LIST **)
xrealloc (dollar_arg_stack, (dollar_arg_stack_slots += 10)
* sizeof (WORD_LIST **));
}
dollar_arg_stack[dollar_arg_stack_index++] = list_rest_of_args ();
dollar_arg_stack[dollar_arg_stack_index] = (WORD_LIST *)NULL;
}
/* Restore the positional parameters from our stack. */
void
pop_dollar_vars ()
{
if (!dollar_arg_stack || dollar_arg_stack_index == 0)
return;
remember_args (dollar_arg_stack[--dollar_arg_stack_index], 1);
dispose_words (dollar_arg_stack[dollar_arg_stack_index]);
dollar_arg_stack[dollar_arg_stack_index] = (WORD_LIST *)NULL;
}
void
dispose_saved_dollar_vars ()
{
if (!dollar_arg_stack || dollar_arg_stack_index == 0)
return;
dispose_words (dollar_arg_stack[dollar_arg_stack_index]);
dollar_arg_stack[dollar_arg_stack_index] = (WORD_LIST *)NULL;
}
static int changed_dollar_vars;
/* Have the dollar variables been reset to new values since we last
@ -315,7 +340,12 @@ set_dollar_vars_unchanged ()
void
set_dollar_vars_changed ()
{
changed_dollar_vars = 1;
if (variable_context)
changed_dollar_vars |= ARGS_FUNC;
else if (this_shell_builtin == set_builtin)
changed_dollar_vars |= ARGS_SETBLTIN;
else
changed_dollar_vars |= ARGS_INVOC;
}
/* **************************************************************** */
@ -330,21 +360,24 @@ set_dollar_vars_changed ()
follow. If FATAL is true, call throw_to_top_level, which exits the
shell; if not, call jump_to_top_level (DISCARD), which aborts the
current command. */
long
intmax_t
get_numeric_arg (list, fatal)
WORD_LIST *list;
int fatal;
{
long count = 1;
intmax_t count = 1;
if (list && list->word && ISOPTION (list->word->word, '-'))
list = list->next;
if (list)
{
register char *arg;
arg = list->word->word;
if (!arg || (legal_number (arg, &count) == 0))
if (arg == 0 || (legal_number (arg, &count) == 0))
{
builtin_error ("bad non-numeric arg `%s'", list->word->word);
sh_neednumarg (list->word->word);
if (fatal)
throw_to_top_level ();
else
@ -362,13 +395,19 @@ get_exitstat (list)
WORD_LIST *list;
{
int status;
long sval;
intmax_t sval;
char *arg;
if (list && list->word && ISOPTION (list->word->word, '-'))
list = list->next;
if (list == 0)
return (last_command_exit_value);
arg = list->word->word;
if (arg == 0 || legal_number (arg, &sval) == 0)
{
builtin_error ("bad non-numeric arg `%s'", list->word->word);
sh_neednumarg (list->word->word ? list->word->word : "`'");
return 255;
}
no_args (list->next);
@ -460,13 +499,65 @@ set_working_directory (name)
/* **************************************************************** */
#if defined (JOB_CONTROL)
int
get_job_by_name (name, flags)
const char *name;
int flags;
{
register int i, wl, cl, match, job;
register PROCESS *p;
job = NO_JOB;
wl = strlen (name);
for (i = job_slots - 1; i >= 0; i--)
{
if (jobs[i] == 0 || ((flags & JM_STOPPED) && JOBSTATE(i) != JSTOPPED))
continue;
p = jobs[i]->pipe;
do
{
if (flags & JM_EXACT)
{
cl = strlen (p->command);
match = STREQN (p->command, name, cl);
}
else if (flags & JM_SUBSTRING)
match = strindex (p->command, name) != (char *)0;
else
match = STREQN (p->command, name, wl);
if (match == 0)
{
p = p->next;
continue;
}
else if (flags & JM_FIRSTMATCH)
return i; /* return first match */
else if (job != NO_JOB)
{
if (this_shell_builtin)
builtin_error ("%s: ambiguous job spec", name);
else
report_error ("%s: ambiguous job spec", name);
return (DUP_JOB);
}
else
job = i;
}
while (p != jobs[i]->pipe);
}
return (job);
}
/* Return the job spec found in LIST. */
int
get_job_spec (list)
WORD_LIST *list;
{
register char *word;
int job, substring_search;
int job, jflags;
if (list == 0)
return (current_job);
@ -482,10 +573,14 @@ get_job_spec (list)
if (DIGIT (*word) && all_digits (word))
{
job = atoi (word);
#if 0
return (job >= job_slots ? NO_JOB : job - 1);
#else
return (job > job_slots ? NO_JOB : job - 1);
#endif
}
substring_search = 0;
jflags = 0;
switch (*word)
{
case 0:
@ -497,43 +592,12 @@ get_job_spec (list)
return (previous_job);
case '?': /* Substring search requested. */
substring_search++;
jflags |= JM_SUBSTRING;
word++;
/* FALLTHROUGH */
default:
{
register int i, wl;
job = NO_JOB;
wl = strlen (word);
for (i = 0; i < job_slots; i++)
{
if (jobs[i])
{
register PROCESS *p;
p = jobs[i]->pipe;
do
{
if ((substring_search && strindex (p->command, word)) ||
(STREQN (p->command, word, wl)))
{
if (job != NO_JOB)
{
builtin_error ("ambigious job spec: %s", word);
return (DUP_JOB);
}
else
job = i;
}
p = p->next;
}
while (p != jobs[i]->pipe);
}
}
return (job);
}
return get_job_by_name (word, jflags);
}
}
#endif /* JOB_CONTROL */
@ -546,7 +610,8 @@ display_signal_list (list, forcecols)
register int i, column;
char *name;
int result;
long signum;
int signum;
intmax_t lsignum;
result = EXECUTION_SUCCESS;
if (!list)
@ -581,20 +646,21 @@ display_signal_list (list, forcecols)
/* List individual signal names or numbers. */
while (list)
{
if (legal_number (list->word->word, &signum))
if (legal_number (list->word->word, &lsignum))
{
/* This is specified by Posix.2 so that exit statuses can be
mapped into signal numbers. */
if (signum > 128)
signum -= 128;
if (signum < 0 || signum >= NSIG)
if (lsignum > 128)
lsignum -= 128;
if (lsignum < 0 || lsignum >= NSIG)
{
builtin_error ("bad signal number: %s", list->word->word);
sh_invalidsig (list->word->word);
result = EXECUTION_FAILURE;
list = list->next;
continue;
}
signum = lsignum;
name = signal_name (signum);
if (STREQN (name, "SIGJUNK", 7) || STREQN (name, "Unknown", 7))
{
@ -614,12 +680,12 @@ display_signal_list (list, forcecols)
signum = decode_signal (list->word->word);
if (signum == NO_SIG)
{
builtin_error ("%s: not a signal specification", list->word->word);
sh_invalidsig (list->word->word);
result = EXECUTION_FAILURE;
list = list->next;
continue;
}
printf ("%ld\n", signum);
printf ("%d\n", signum);
}
list = list->next;
}

62
builtins/common.h
View file

@ -1,6 +1,6 @@
/* common.h -- extern declarations for functions defined in common.c. */
/* Copyright (C) 1993 Free Software Foundation, Inc.
/* Copyright (C) 1993-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -26,30 +26,63 @@
#define ISOPTION(s, c) (s[0] == '-' && !s[2] && s[1] == c)
/* Flag values for parse_and_execute () */
#define SEVAL_NONINT 0x01
#define SEVAL_INTERACT 0x02
#define SEVAL_NOHIST 0x04
#define SEVAL_NONINT 0x001
#define SEVAL_INTERACT 0x002
#define SEVAL_NOHIST 0x004
#define SEVAL_NOFREE 0x008
/* Flags for describe_command, shared between type.def and command.def */
#define CDESC_ALL 0x001 /* type -a */
#define CDESC_SHORTDESC 0x002 /* command -V */
#define CDESC_REUSABLE 0x004 /* command -v */
#define CDESC_TYPE 0x008 /* type -t */
#define CDESC_PATH_ONLY 0x010 /* type -p */
#define CDESC_FORCE_PATH 0x020 /* type -ap or type -P */
#define CDESC_NOFUNCS 0x040 /* type -f */
/* Flags for get_job_by_name */
#define JM_PREFIX 0x01 /* prefix of job name */
#define JM_SUBSTRING 0x02 /* substring of job name */
#define JM_EXACT 0x04 /* match job name exactly */
#define JM_STOPPED 0x08 /* match stopped jobs only */
#define JM_FIRSTMATCH 0x10 /* return first matching job */
/* Flags for remember_args and value of changed_dollar_vars */
#define ARGS_NONE 0x0
#define ARGS_INVOC 0x01
#define ARGS_FUNC 0x02
#define ARGS_SETBLTIN 0x04
/* Functions from common.c */
extern void builtin_error __P((const char *, ...)) __attribute__((__format__ (printf, 1, 2)));
extern void builtin_usage __P((void));
extern void no_args __P((WORD_LIST *));
extern void bad_option __P((char *));
extern int no_options __P((WORD_LIST *));
/* common error message functions */
extern void sh_needarg __P((char *));
extern void sh_neednumarg __P((char *));
extern void sh_notfound __P((char *));
extern void sh_invalidopt __P((char *));
extern void sh_invalidoptname __P((char *));
extern void sh_invalidid __P((char *));
extern void sh_invalidnum __P((char *));
extern void sh_invalidsig __P((char *));
extern void sh_erange __P((char *, char *));
extern void sh_badpid __P((char *));
extern void sh_badjob __P((char *));
extern void sh_readonly __P((const char *));
extern void sh_nojobs __P((char *));
extern void sh_restricted __P((char *));
extern char **make_builtin_argv __P((WORD_LIST *, int *));
extern void remember_args __P((WORD_LIST *, int));
extern void push_context __P((void));
extern void pop_context __P((void));
extern void push_dollar_vars __P((void));
extern void pop_dollar_vars __P((void));
extern void dispose_saved_dollar_vars __P((void));
extern int dollar_vars_changed __P((void));
extern void set_dollar_vars_unchanged __P((void));
extern void set_dollar_vars_changed __P((void));
extern long get_numeric_arg __P((WORD_LIST *, int));
extern intmax_t get_numeric_arg __P((WORD_LIST *, int));
extern int get_exitstat __P((WORD_LIST *));
extern int read_octal __P((char *));
@ -59,6 +92,7 @@ extern char *get_working_directory __P((char *));
extern void set_working_directory __P((char *));
#if defined (JOB_CONTROL)
extern int get_job_by_name __P((const char *, int));
extern int get_job_spec __P((WORD_LIST *));
#endif
extern int display_signal_list __P((WORD_LIST *, int));
@ -96,7 +130,7 @@ extern int shopt_listopt __P((char *, int));
extern int set_login_shell __P((int));
/* Functions from type.def */
extern int describe_command __P((char *, int, int));
extern int describe_command __P((char *, int));
/* Functions from setattr.def */
extern int set_or_show_attributes __P((WORD_LIST *, int, int));
@ -106,8 +140,8 @@ extern void set_var_attribute __P((char *, int, int));
/* Functions from pushd.def */
extern char *get_dirstack_from_string __P((char *));
extern char *get_dirstack_element __P((long, int));
extern void set_dirstack_element __P((long, int, char *));
extern char *get_dirstack_element __P((intmax_t, int));
extern void set_dirstack_element __P((intmax_t, int, char *));
extern WORD_LIST *get_directory_stack __P((void));
/* Functions from evalstring.c */

74
builtins/complete.def
View file

@ -1,7 +1,7 @@
This file is complete.def, from which is created complete.c.
It implements the builtins "complete" and "compgen" in Bash.
Copyright (C) 1999 Free Software Foundation, Inc.
Copyright (C) 1999-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -24,7 +24,7 @@ $PRODUCES complete.c
$BUILTIN complete
$DEPENDS_ON PROGRAMMABLE_COMPLETION
$FUNCTION complete_builtin
$SHORT_DOC complete [-abcdefgjkvu] [-pr] [-o option] [-A action] [-G globpat] [-W wordlist] [-P prefix] [-S suffix] [-X filterpat] [-F function] [-C command] [name ...]
$SHORT_DOC complete [-abcdefgjksuv] [-pr] [-o option] [-A action] [-G globpat] [-W wordlist] [-P prefix] [-S suffix] [-X filterpat] [-F function] [-C command] [name ...]
For each NAME, specify how arguments are to be completed.
If the -p option is supplied, or if no options are supplied, existing
completion specifications are printed in a way that allows them to be
@ -62,11 +62,12 @@ static int build_actions __P((WORD_LIST *, int *, int *, unsigned long *, unsign
static int remove_cmd_completions __P((WORD_LIST *));
static void print_one_completion __P((char *, COMPSPEC *));
static int print_one_completion __P((char *, COMPSPEC *));
static int print_compitem __P((BUCKET_CONTENTS *));
static void print_all_completions __P((void));
static int print_cmd_completions __P((WORD_LIST *));
static char *Aarg, *Garg, *Warg, *Parg, *Sarg, *Xarg, *Farg, *Carg;
static char *Garg, *Warg, *Parg, *Sarg, *Xarg, *Farg, *Carg;
static struct _compacts {
char *actname;
@ -90,6 +91,7 @@ static struct _compacts {
{ "job", CA_JOB, 'j' },
{ "keyword", CA_KEYWORD, 'k' },
{ "running", CA_RUNNING, 0 },
{ "service", CA_SERVICE, 's' },
{ "setopt", CA_SETOPT, 0 },
{ "shopt", CA_SHOPT, 0 },
{ "signal", CA_SIGNAL, 0 },
@ -99,6 +101,7 @@ static struct _compacts {
{ (char *)NULL, 0, 0 },
};
/* This should be a STRING_INT_ALIST */
static struct _compopt {
char *optname;
int optflag;
@ -106,6 +109,7 @@ static struct _compopt {
{ "default", COPT_DEFAULT },
{ "dirnames", COPT_DIRNAMES },
{ "filenames",COPT_FILENAMES},
{ "nospace", COPT_NOSPACE },
{ (char *)NULL, 0 },
};
@ -160,7 +164,7 @@ build_actions (list, pp, rp, actp, optp)
opt_given = 0;
reset_internal_getopt ();
while ((opt = internal_getopt (list, "abcdefgjko:pruvA:G:W:P:S:X:F:C:")) != -1)
while ((opt = internal_getopt (list, "abcdefgjko:prsuvA:G:W:P:S:X:F:C:")) != -1)
{
opt_given = 1;
switch (opt)
@ -173,7 +177,7 @@ build_actions (list, pp, rp, actp, optp)
}
else
{
builtin_error ("illegal option: -r");
sh_invalidopt ("-r");
builtin_usage ();
return (EX_USAGE);
}
@ -186,7 +190,7 @@ build_actions (list, pp, rp, actp, optp)
}
else
{
builtin_error ("illegal option: -p");
sh_invalidopt ("-p");
builtin_usage ();
return (EX_USAGE);
}
@ -218,6 +222,9 @@ build_actions (list, pp, rp, actp, optp)
case 'k':
acts |= CA_KEYWORD;
break;
case 's':
acts |= CA_SERVICE;
break;
case 'u':
acts |= CA_USER;
break;
@ -228,7 +235,7 @@ build_actions (list, pp, rp, actp, optp)
ind = find_compopt (list_optarg);
if (ind < 0)
{
builtin_error ("%s: invalid option name", list_optarg);
sh_invalidoptname (list_optarg);
return (EX_USAGE);
}
copts |= compopts[ind].optflag;
@ -282,7 +289,6 @@ complete_builtin (list)
{
int opt_given, pflag, rflag, rval;
unsigned long acts, copts;
char *cmd;
COMPSPEC *cs;
if (list == 0)
@ -293,7 +299,7 @@ complete_builtin (list)
opt_given = pflag = rflag = 0;
acts = copts = (unsigned long)0L;
Aarg = Garg = Warg = Parg = Sarg = Xarg = Farg = Carg = (char *)NULL;
Garg = Warg = Parg = Sarg = Xarg = Farg = Carg = (char *)NULL;
cs = (COMPSPEC *)NULL;
/* Build the actions from the arguments. Also sets the [A-Z]arg variables
@ -321,7 +327,7 @@ complete_builtin (list)
{
if (list == 0)
{
clear_progcomps ();
progcomp_flush ();
return (EXECUTION_SUCCESS);
}
return (remove_cmd_completions (list));
@ -335,7 +341,7 @@ complete_builtin (list)
/* If we get here, we need to build a compspec and add it for each
remaining argument. */
cs = alloc_compspec ();
cs = compspec_create ();
cs->actions = acts;
cs->options = copts;
@ -350,8 +356,7 @@ complete_builtin (list)
for (rval = EXECUTION_SUCCESS ; list; list = list->next)
{
/* Add CS as the compspec for the specified commands. */
cmd = list->word->word;
if (add_progcomp (cmd, cs) == 0)
if (progcomp_insert (list->word->word, cs) == 0)
rval = EXECUTION_FAILURE;
}
@ -367,7 +372,7 @@ remove_cmd_completions (list)
for (ret = EXECUTION_SUCCESS, l = list; l; l = l->next)
{
if (remove_progcomp (l->word->word) == 0)
if (progcomp_remove (l->word->word) == 0)
{
builtin_error ("%s: no completion specification", l->word->word);
ret = EXECUTION_FAILURE;
@ -410,7 +415,7 @@ remove_cmd_completions (list)
printf ("-o %s ", f); \
} while (0)
static void
static int
print_one_completion (cmd, cs)
char *cmd;
COMPSPEC *cs;
@ -426,6 +431,7 @@ print_one_completion (cmd, cs)
PRINTCOMPOPT (COPT_DEFAULT, "default");
PRINTCOMPOPT (COPT_DIRNAMES, "dirnames");
PRINTCOMPOPT (COPT_FILENAMES, "filenames");
PRINTCOMPOPT (COPT_NOSPACE, "nospace");
acts = cs->actions;
@ -437,8 +443,9 @@ print_one_completion (cmd, cs)
PRINTOPT (CA_EXPORT, "-e");
PRINTOPT (CA_FILE, "-f");
PRINTOPT (CA_GROUP, "-g");
PRINTOPT (CA_KEYWORD, "-k");
PRINTOPT (CA_JOB, "-j");
PRINTOPT (CA_KEYWORD, "-k");
PRINTOPT (CA_SERVICE, "-s");
PRINTOPT (CA_USER, "-u");
PRINTOPT (CA_VARIABLE, "-v");
@ -470,12 +477,27 @@ print_one_completion (cmd, cs)
PRINTARG (cs->command, "-C");
printf ("%s\n", cmd);
return (0);
}
static int
print_compitem (item)
BUCKET_CONTENTS *item;
{
COMPSPEC *cs;
char *cmd;
cmd = item->key;
cs = (COMPSPEC *)item->data;
return (print_one_completion (cmd, cs));
}
static void
print_all_completions ()
{
print_all_compspecs (print_one_completion);
progcomp_walk (print_compitem);
}
static int
@ -488,7 +510,7 @@ print_cmd_completions (list)
for (ret = EXECUTION_SUCCESS, l = list; l; l = l->next)
{
cs = find_compspec (l->word->word);
cs = progcomp_search (l->word->word);
if (cs)
print_one_completion (l->word->word, cs);
else
@ -503,7 +525,7 @@ print_cmd_completions (list)
$BUILTIN compgen
$DEPENDS_ON PROGRAMMABLE_COMPLETION
$FUNCTION compgen_builtin
$SHORT_DOC compgen [-abcdefgjkvu] [-o option] [-A action] [-G globpat] [-W wordlist] [-P prefix] [-S suffix] [-X filterpat] [-F function] [-C command] [word]
$SHORT_DOC compgen [-abcdefgjksuv] [-o option] [-A action] [-G globpat] [-W wordlist] [-P prefix] [-S suffix] [-X filterpat] [-F function] [-C command] [word]
Display the possible completions depending on the options. Intended
to be used from within a shell function generating possible completions.
If the optional WORD argument is supplied, matches against WORD are
@ -524,7 +546,7 @@ compgen_builtin (list)
return (EXECUTION_SUCCESS);
acts = copts = (unsigned long)0L;
Aarg = Garg = Warg = Parg = Sarg = Xarg = Farg = Carg = (char *)NULL;
Garg = Warg = Parg = Sarg = Xarg = Farg = Carg = (char *)NULL;
cs = (COMPSPEC *)NULL;
/* Build the actions from the arguments. Also sets the [A-Z]arg variables
@ -545,7 +567,7 @@ compgen_builtin (list)
internal_warning ("compgen: -C option may not work as you expect");
/* If we get here, we need to build a compspec and evaluate it. */
cs = alloc_compspec ();
cs = compspec_create ();
cs->actions = acts;
cs->options = copts;
cs->refcount = 1;
@ -569,7 +591,7 @@ compgen_builtin (list)
matches = rl_completion_matches (word, rl_filename_completion_function);
sl = completions_to_stringlist (matches);
free_array (matches);
strvec_dispose (matches);
}
if (sl)
@ -577,11 +599,11 @@ compgen_builtin (list)
if (sl->list && sl->list_len)
{
rval = EXECUTION_SUCCESS;
print_stringlist (sl, (char *)NULL);
strlist_print (sl, (char *)NULL);
}
free_stringlist (sl);
strlist_dispose (sl);
}
free_compspec (cs);
compspec_dispose (cs);
return (rval);
}

140
builtins/declare.def
View file

@ -1,7 +1,7 @@
This file is declare.def, from which is created declare.c.
It implements the builtins "declare" and "local" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -23,7 +23,7 @@ $PRODUCES declare.c
$BUILTIN declare
$FUNCTION declare_builtin
$SHORT_DOC declare [-afFrxi] [-p] name[=value] ...
$SHORT_DOC declare [-afFirtx] [-p] name[=value] ...
Declare variables and/or give them attributes. If no NAMEs are
given, then display the values of variables instead. The -p option
will display the attributes and values of each NAME.
@ -33,9 +33,10 @@ The flags are:
-a to make NAMEs arrays (if supported)
-f to select from among function names only
-F to display function names without definitions
-i to make NAMEs have the `integer' attribute
-r to make NAMEs readonly
-t to make NAMEs have the `trace' attribute
-x to make NAMEs export
-i to make NAMEs have the `integer' attribute set
Variables with the integer attribute have arithmetic evaluation (see
`let') done when the variable is assigned to.
@ -50,7 +51,7 @@ $END
$BUILTIN typeset
$FUNCTION declare_builtin
$SHORT_DOC typeset [-afFrxi] [-p] name[=value] ...
$SHORT_DOC typeset [-afFirtx] [-p] name[=value] ...
Obsolete. See `declare'.
$END
@ -70,6 +71,7 @@ $END
#include "../shell.h"
#include "common.h"
#include "builtext.h"
#include "bashgetopt.h"
extern int array_needs_making;
@ -103,66 +105,70 @@ local_builtin (list)
}
}
#if defined (ARRAY_VARS)
# define DECLARE_OPTS "+afiprtxF"
#else
# define DECLARE_OPTS "+fiprtxF"
#endif
/* The workhorse function. */
static int
declare_internal (list, local_var)
register WORD_LIST *list;
int local_var;
{
int flags_on, flags_off, *flags, any_failed, assign_error, pflag, nodefs;
int flags_on, flags_off, *flags, any_failed, assign_error, pflag, nodefs, opt;
char *t, *subscript_start;
SHELL_VAR *var;
flags_on = flags_off = any_failed = assign_error = pflag = nodefs = 0;
while (list)
reset_internal_getopt ();
while ((opt = internal_getopt (list, DECLARE_OPTS)) != EOF)
{
t = list->word->word;
if (t[0] == '-' && t[1] == '-' && t[2] == '\0')
flags = list_opttype == '+' ? &flags_off : &flags_on;
switch (opt)
{
list = list->next;
break;
}
if (*t != '+' && *t != '-')
break;
flags = (*t++ == '+') ? &flags_off : &flags_on;
while (*t)
{
if (*t == 'p' && local_var == 0)
pflag++, t++;
else if (*t == 'F')
{
nodefs++;
*flags |= att_function; t++;
}
else if (*t == 'f')
*flags |= att_function, t++;
else if (*t == 'x')
*flags |= att_exported, t++, array_needs_making = 1;
else if (*t == 'r')
*flags |= att_readonly, t++;
else if (*t == 'i')
*flags |= att_integer, t++;
case 'a':
#if defined (ARRAY_VARS)
else if (*t == 'a')
*flags |= att_array, t++;
*flags |= att_array;
#endif
else
{
builtin_error ("unknown option: `-%c'", *t);
builtin_usage ();
return (EX_USAGE);
}
break;
case 'p':
if (local_var == 0)
pflag++;
break;
case 'F':
nodefs++;
*flags |= att_function;
break;
case 'f':
*flags |= att_function;
break;
case 'i':
*flags |= att_integer;
break;
case 'r':
*flags |= att_readonly;
break;
case 't':
*flags |= att_trace;
break;
case 'x':
*flags |= att_exported;
array_needs_making = 1;
break;
default:
builtin_usage ();
return (EX_USAGE);
}
list = list->next;
}
list = loptend;
/* If there are no more arguments left, then we just want to show
some variables. */
if (list == 0) /* declare -[afFirx] */
if (list == 0) /* declare -[afFirtx] */
{
/* Show local variables defined at this context level if this is
the `local' builtin. */
@ -171,7 +177,7 @@ declare_internal (list, local_var)
register SHELL_VAR **vlist;
register int i;
vlist = map_over (variable_in_context, shell_variables);
vlist = all_local_variables ();
if (vlist)
{
@ -193,14 +199,14 @@ declare_internal (list, local_var)
return (EXECUTION_SUCCESS);
}
if (pflag) /* declare -p [-afFirx] name [name...] */
if (pflag) /* declare -p [-afFirtx] name [name...] */
{
for (any_failed = 0; list; list = list->next)
{
pflag = show_name_attributes (list->word->word, nodefs);
if (pflag)
{
builtin_error ("%s: not found", list->word->word);
sh_notfound (list->word->word);
any_failed++;
}
}
@ -244,7 +250,7 @@ declare_internal (list, local_var)
if (legal_identifier (name) == 0)
{
builtin_error ("`%s': not a valid identifier", name);
sh_invalidid (name);
assign_error++;
NEXT_VARIABLE ();
}
@ -253,7 +259,10 @@ declare_internal (list, local_var)
inside of a function. This means we should make local variables,
not global ones. */
if (variable_context)
/* XXX - this has consequences when we're making a local copy of a
variable that was in the temporary environment. Watch out
for this. */
if (variable_context && ((flags_on & att_function) == 0))
{
#if defined (ARRAY_VARS)
if ((flags_on & att_array) || making_array_special)
@ -267,6 +276,8 @@ declare_internal (list, local_var)
NEXT_VARIABLE ();
}
}
else
var = (SHELL_VAR *)NULL;
/* If we are declaring a function, then complain about it in some way.
We don't let people make functions by saying `typeset -f foo=bar'. */
@ -315,7 +326,9 @@ declare_internal (list, local_var)
}
else /* declare -[airx] name [name...] */
{
var = find_variable (name);
/* Non-null if we just created or fetched a local variable. */
if (var == 0)
var = find_variable (name);
if (var == 0)
{
@ -330,7 +343,7 @@ declare_internal (list, local_var)
/* Cannot use declare +r to turn off readonly attribute. */
if (readonly_p (var) && (flags_off & att_readonly))
{
builtin_error ("%s: readonly variable", name);
sh_readonly (name);
any_failed++;
NEXT_VARIABLE ();
}
@ -340,7 +353,7 @@ declare_internal (list, local_var)
if ((readonly_p (var) || noassign_p (var)) && offset)
{
if (readonly_p (var))
builtin_error ("%s: readonly variable", name);
sh_readonly (name);
assign_error++;
NEXT_VARIABLE ();
}
@ -394,12 +407,27 @@ declare_internal (list, local_var)
`var=value declare -x var', make sure it is treated identically
to `var=value export var'. Do the same for `declare -r' and
`readonly'. Preserve the attributes, except for att_tempvar. */
/* XXX -- should this create a variable in the global scope, or
modify the local variable flags? ksh93 has it modify the
global scope.
Need to handle case like in set_var_attribute where a temporary
variable is in the same table as the function local vars. */
if ((flags_on & (att_exported|att_readonly)) && tempvar_p (var))
{
SHELL_VAR *tv;
tv = bind_variable (var->name, var->value ? var->value : "");
tv->attributes = var->attributes & ~att_tempvar;
dispose_variable (var);
char *tvalue;
tv = find_tempenv_variable (var->name);
if (tv)
{
tvalue = var_isset (var) ? savestring (value_cell (var)) : savestring ("");
tv = bind_variable (var->name, tvalue);
tv->attributes |= var->attributes & ~att_tempvar;
if (tv->context > 0)
VSETATTR (tv, att_propagate);
free (tvalue);
}
VSETATTR (var, att_propagate);
}
}

2
builtins/echo.def
View file

@ -1,7 +1,7 @@
This file is echo.def, from which is created echo.c.
It implements the builtin "echo" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.

13
builtins/enable.def
View file

@ -1,7 +1,7 @@
This file is enable.def, from which is created enable.c.
It implements the builtin "enable" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -146,7 +146,7 @@ enable_builtin (list)
/* Restricted shells cannot load new builtins. */
if (restricted && (flags & (FFLAG|DFLAG)))
{
builtin_error ("restricted");
sh_restricted ((char *)NULL);
return (EXECUTION_FAILURE);
}
#endif
@ -246,6 +246,13 @@ enable_shell_command (name, disable_p)
if (disable_p)
b->flags &= ~BUILTIN_ENABLED;
#if defined (RESTRICTED_SHELL)
else if (restricted && ((b->flags & BUILTIN_ENABLED) == 0))
{
sh_restricted ((char *)NULL);
return (EXECUTION_FAILURE);
}
#endif
else
b->flags |= BUILTIN_ENABLED;
@ -453,7 +460,7 @@ dyn_unload_builtin (name)
using it drops to zero. */
if (ref == 1 && local_dlclose (handle) != 0)
{
builtin_error ("cannot delete %s: %s", name, dlerror ());
builtin_error ("%s: cannot delete: %s", name, dlerror ());
return (EXECUTION_FAILURE);
}

3
builtins/eval.def
View file

@ -1,7 +1,7 @@
This file is eval.def, from which is created eval.c.
It implements the builtin "eval" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -46,6 +46,7 @@ eval_builtin (list)
{
if (no_options (list))
return (EX_USAGE);
list = loptend; /* skip over possible `--' */
/* Note that parse_and_execute () frees the string it is passed. */
return (list ? parse_and_execute (string_list (list), "eval", SEVAL_NOHIST) : EXECUTION_SUCCESS);

2
builtins/evalfile.c
View file

@ -216,7 +216,7 @@ maybe_execute_file (fname, force_noninteractive)
char *filename;
int result, flags;
filename = bash_tilde_expand (fname);
filename = bash_tilde_expand (fname, 0);
flags = FEVAL_ENOENTOK;
if (force_noninteractive)
flags |= FEVAL_NONINT;

21
builtins/evalstring.c
View file

@ -83,6 +83,7 @@ parse_and_execute_cleanup ()
(flags & SEVAL_NONINT) -> interactive = 0;
(flags & SEVAL_INTERACT) -> interactive = 1;
(flags & SEVAL_NOHIST) -> call bash_history_disable ()
(flags & SEVAL_NOFREE) -> don't free STRING when finished
*/
int
@ -123,7 +124,7 @@ parse_and_execute (string, from_file, flags)
}
add_unwind_protect (pop_stream, (char *)NULL);
if (orig_string)
if (orig_string && ((flags & SEVAL_NOFREE) == 0))
add_unwind_protect (xfree, orig_string);
end_unwind_frame ();
@ -320,23 +321,7 @@ cat_file (r)
return -1;
}
rval = 0;
while (1)
{
nr = zread (fd, lbuf, sizeof(lbuf));
if (nr == 0)
break;
else if (nr < 0)
{
rval = -1;
break;
}
if (zwrite (1, lbuf, nr) < 0)
{
rval = -1;
break;
}
}
rval = zcatfd (fd, 1, fn);
free (fn);
close (fd);

12
builtins/exec.def
View file

@ -1,7 +1,7 @@
This file is exec.def, from which is created exec.c.
It implements the builtin "exec" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -127,19 +127,19 @@ exec_builtin (list)
#if defined (RESTRICTED_SHELL)
if (restricted)
{
builtin_error ("restricted");
sh_restricted ((char *)NULL);
return (EXECUTION_FAILURE);
}
#endif /* RESTRICTED_SHELL */
args = word_list_to_argv (list, 1, 0, (int *)NULL);
args = strvec_from_word_list (list, 1, 0, (int *)NULL);
/* A command with a slash anywhere in its name is not looked up in $PATH. */
command = absolute_program (args[0]) ? args[0] : search_for_command (args[0]);
if (command == 0)
{
builtin_error ("%s: not found", args[0]);
sh_notfound (args[0]);
exit_value = EX_NOTFOUND; /* As per Posix.2, 3.14.6 */
goto failed_exec;
}
@ -215,10 +215,10 @@ failed_exec:
exit_shell (exit_value);
if (args)
free_array (args);
strvec_dispose (args);
initialize_traps ();
reinitialize_signals ();
initialize_signals (1);
#if defined (JOB_CONTROL)
restart_job_control ();

5
builtins/exit.def
View file

@ -1,7 +1,7 @@
This file is exit.def, from which is created exit.c.
It implements the builtins "exit", and "logout" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -119,7 +119,8 @@ exit_or_logout (list)
/* Get return value if present. This means that you can type
`logout 5' to a shell, and it returns 5. */
exit_value = list ? get_exitstat (list) : last_command_exit_value;
exit_value = get_exitstat (list);
/* Run our `~/.bash_logout' file if it exists, and this is a login shell. */
if (login_shell && sourced_logout++ == 0 && subshell_environment == 0)

27
builtins/fc.def
View file

@ -1,7 +1,7 @@
This file is fc.def, from which is created fc.c.
It implements the builtin "fc" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -239,8 +239,7 @@ fc_builtin (list)
/* If we have a list of substitutions to do, then reverse it
to get the replacements in the proper order. */
if (rlist && rlist->next)
rlist = (REPL *)reverse_list ((GENERIC_LIST *) rlist);
rlist = REVERSE_LIST (rlist, REPL *);
hlist = history_list ();
@ -313,10 +312,9 @@ fc_builtin (list)
}
/* We print error messages for line specifications out of range. */
if ((histbeg < 0) || (histend < 0) ||
(histbeg > last_hist) || (histend > last_hist))
if ((histbeg < 0) || (histend < 0))
{
builtin_error ("history specification out of range");
sh_erange ((char *)NULL, "history specification");
return (EXECUTION_FAILURE);
}
@ -410,7 +408,7 @@ fc_number (list)
s = list->word->word;
if (*s == '-')
s++;
return (legal_number (s, (long *)NULL));
return (legal_number (s, (intmax_t *)NULL));
}
/* Return an absolute index into HLIST which corresponds to COMMAND. If
@ -457,19 +455,20 @@ fc_gethnum (command, hlist)
n = atoi (s);
n *= sign;
/* Anything specified greater than the last history element that we
deal with is an error. */
if (n > i + history_base)
return (-1);
/* If the value is negative or zero, then it is an offset from
the current history item. */
if (n < 0)
return (i + n + 1);
{
n += i + 1;
return (n < 0 ? 0 : n);
}
else if (n == 0)
return (i);
else
return (n - history_base);
{
n -= history_base;
return (i < n ? i : n);
}
}
clen = strlen (command);

11
builtins/fg_bg.def
View file

@ -1,7 +1,7 @@
This file is fg_bg.def, from which is created fg_bg.c.
It implements the builtins "bg" and "fg" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -42,6 +42,7 @@ $END
#include "../shell.h"
#include "../jobs.h"
#include "common.h"
#include "bashgetopt.h"
#if defined (JOB_CONTROL)
extern char *this_command_name;
@ -58,12 +59,13 @@ fg_builtin (list)
if (job_control == 0)
{
builtin_error ("no job control");
sh_nojobs ((char *)NULL);
return (EXECUTION_FAILURE);
}
if (no_options (list))
return (EX_USAGE);
list = loptend;
/* If the last arg on the line is '&', then start this job in the
background. Else, fg the job. */
@ -92,12 +94,13 @@ bg_builtin (list)
{
if (job_control == 0)
{
builtin_error ("no job control");
sh_nojobs ((char *)NULL);
return (EXECUTION_FAILURE);
}
if (no_options (list))
return (EX_USAGE);
list = loptend;
return (fg_bg (list, 0));
}
@ -117,7 +120,7 @@ fg_bg (list, foreground)
if (job < 0 || job >= job_slots || jobs[job] == 0)
{
if (job != DUP_JOB)
builtin_error ("%s: no such job", list ? list->word->word : "current");
sh_badjob (list ? list->word->word : "current");
goto failure;
}

27
builtins/getopt.c
View file

@ -75,7 +75,7 @@ int sh_opterr = 1;
int sh_optopt = '?';
/* Set to 1 when we see an illegal option; public so getopts can reset it. */
/* Set to 1 when we see an invalid option; public so getopts can reset it. */
int sh_badopt = 0;
/* Scan elements of ARGV (whose length is ARGC) for option characters
@ -135,15 +135,6 @@ sh_getopt (argc, argv, optstring)
nextchar = (char *)NULL;
}
/* Do the increment of `sh_optind' we deferred because the last option
was illegal. */
if (sh_badopt && (nextchar == 0 || *nextchar == '\0'))
{
sh_badopt = 0;
sh_optind++;
nextchar = (char *)NULL;
}
if (nextchar == 0 || *nextchar == '\0')
{
/* If we have done all the ARGV-elements, stop the scan. */
@ -179,8 +170,13 @@ sh_getopt (argc, argv, optstring)
sh_optopt = c;
/* If the option is illegal, return an error, but defer updating sh_optind
until the next call so $OPTIND is correct. */
/* Increment `sh_optind' when we start to process its last character. */
if (nextchar == 0 || *nextchar == '\0')
{
sh_optind++;
nextchar = (char *)NULL;
}
if (sh_badopt = (temp == NULL || c == ':'))
{
if (sh_opterr)
@ -189,13 +185,6 @@ sh_getopt (argc, argv, optstring)
return '?';
}
/* Increment `sh_optind' when we start to process its last character. */
if (nextchar == 0 || *nextchar == '\0')
{
sh_optind++;
nextchar = (char *)NULL;
}
if (temp[1] == ':')
{
if (nextchar && *nextchar)

34
builtins/getopts.def
View file

@ -1,7 +1,7 @@
This file is getopts.def, from which is created getopts.c.
It implements the builtin "getopts" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -39,11 +39,11 @@ getopts places that argument into the shell variable OPTARG.
getopts reports errors in one of two ways. If the first character
of OPTSTRING is a colon, getopts uses silent error reporting. In
this mode, no error messages are printed. If an illegal option is
this mode, no error messages are printed. If an invalid option is
seen, getopts places the option character found into OPTARG. If a
required argument is not found, getopts places a ':' into NAME and
sets OPTARG to the option character found. If getopts is not in
silent mode, and an illegal option is seen, getopts places '?' into
silent mode, and an invalid option is seen, getopts places '?' into
NAME and unsets OPTARG. If a required option is not found, a '?'
is placed in NAME, OPTARG is unset, and a diagnostic message is
printed.
@ -75,11 +75,14 @@ $END
#include "getopt.h"
#define G_EOF -1
#define G_ILLEGAL_OPT -2
#define G_INVALID_OPT -2
#define G_ARG_MISSING -3
extern char *this_command_name;
static int getopts_bind_variable __P((char *, char *));
static int dogetopts __P((int, char **));
/* getopts_reset is magic code for when OPTIND is reset. N is the
value that has just been assigned to OPTIND. */
void
@ -103,7 +106,7 @@ getopts_bind_variable (name, value)
}
else
{
builtin_error ("`%s': not a valid identifier", name);
sh_invalidid (name);
return (EXECUTION_FAILURE);
}
}
@ -112,9 +115,9 @@ getopts_bind_variable (name, value)
(identical to that of ksh-88). The special handling is enabled if
the first character of the option string is a colon; this handling
disables diagnostic messages concerning missing option arguments
and illegal option characters. The handling is as follows.
and invalid option characters. The handling is as follows.
ILLEGAL OPTIONS:
INVALID OPTIONS:
name -> "?"
if (special_error) then
OPTARG = option character found
@ -193,7 +196,7 @@ dogetopts (argc, argv)
;
for (words = rest_of_args; words; words = words->next, i++)
;
v = alloc_array (i + 1);
v = strvec_create (i + 1);
for (i = 0; i < 10 && dollar_vars[i]; i++)
v[i] = dollar_vars[i];
for (words = rest_of_args; words; words = words->next, i++)
@ -207,7 +210,8 @@ dogetopts (argc, argv)
if (special_error)
sh_opterr = old_opterr;
/* Set the OPTIND variable in any case, to handle "--" skipping. */
/* Set the OPTIND variable in any case, to handle "--" skipping. It's
highly unlikely that 14 digits will be too few. */
if (sh_optind < 10)
{
numval[14] = sh_optind + '0';
@ -228,13 +232,13 @@ dogetopts (argc, argv)
/* If an error occurred, decide which one it is and set the return
code appropriately. In all cases, the option character in error
is in OPTOPT. If an illegal option was encountered, OPTARG is
is in OPTOPT. If an invalid option was encountered, OPTARG is
NULL. If a required option argument was missing, OPTARG points
to a NULL string (that is, sh_optarg[0] == 0). */
if (ret == '?')
{
if (sh_optarg == NULL)
ret = G_ILLEGAL_OPT;
ret = G_INVALID_OPT;
else if (sh_optarg[0] == '\0')
ret = G_ARG_MISSING;
}
@ -245,9 +249,9 @@ dogetopts (argc, argv)
return (EXECUTION_FAILURE);
}
if (ret == G_ILLEGAL_OPT)
if (ret == G_INVALID_OPT)
{
/* Illegal option encountered. */
/* Invalid option encountered. */
ret = getopts_bind_variable (name, "?");
if (special_error)
@ -257,7 +261,7 @@ dogetopts (argc, argv)
bind_variable ("OPTARG", strval);
}
else
makunbound ("OPTARG", shell_variables);
unbind_variable ("OPTARG");
return (ret);
}
@ -276,7 +280,7 @@ dogetopts (argc, argv)
else
{
ret = getopts_bind_variable (name, "?");
makunbound ("OPTARG", shell_variables);
unbind_variable ("OPTARG");
}
return (ret);
}

133
builtins/hash.def
View file

@ -1,7 +1,7 @@
This file is hash.def, from which is created hash.c.
It implements the builtin "hash" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -23,15 +23,17 @@ $PRODUCES hash.c
$BUILTIN hash
$FUNCTION hash_builtin
$SHORT_DOC hash [-r] [-p pathname] [-t] [name ...]
$SHORT_DOC hash [-lr] [-p pathname] [-dt] [name ...]
For each NAME, the full pathname of the command is determined and
remembered. If the -p option is supplied, PATHNAME is used as the
full pathname of NAME, and no path search is performed. The -r
option causes the shell to forget all remembered locations.
option causes the shell to forget all remembered locations. The -d
option causes the shell to forget the remembered location of each NAME.
If the -t option is supplied the full pathname to which each NAME
corresponds is printed. If multiple NAME arguments are supplied with
-t, the NAME is printed before the hashed full pathname. If no arguments
are given, information about remembered commands is displayed.
-t, the NAME is printed before the hashed full pathname. The -l option
causes output to be displayed in a format that may be reused as input.
If no arguments are given, information about remembered commands is displayed.
$END
#include <config.h>
@ -60,8 +62,10 @@ extern int dot_found_in_search;
extern char *this_command_name;
static int add_hashed_command __P((char *, int));
static int print_hashed_commands __P((void));
static int list_hashed_filename_targets __P((WORD_LIST *));
static int print_hash_info __P((BUCKET_CONTENTS *));
static int print_portable_hash_info __P((BUCKET_CONTENTS *));
static int print_hashed_commands __P((int));
static int list_hashed_filename_targets __P((WORD_LIST *, int));
/* Print statistics on the current state of hashed commands. If LIST is
not empty, then rehash (or hash in the first place) the specified
@ -70,7 +74,7 @@ int
hash_builtin (list)
WORD_LIST *list;
{
int expunge_hash_table, list_targets, opt;
int expunge_hash_table, list_targets, list_portably, delete, opt;
char *w, *pathname;
if (hashing_enabled == 0)
@ -79,19 +83,25 @@ hash_builtin (list)
return (EXECUTION_FAILURE);
}
expunge_hash_table = list_targets = 0;
expunge_hash_table = list_targets = list_portably = delete = 0;
pathname = (char *)NULL;
reset_internal_getopt ();
while ((opt = internal_getopt (list, "rp:t")) != -1)
while ((opt = internal_getopt (list, "dlp:rt")) != -1)
{
switch (opt)
{
case 'r':
expunge_hash_table = 1;
case 'd':
delete = 1;
break;
case 'l':
list_portably = 1;
break;
case 'p':
pathname = list_optarg;
break;
case 'r':
expunge_hash_table = 1;
break;
case 't':
list_targets = 1;
break;
@ -105,40 +115,38 @@ hash_builtin (list)
/* hash -t requires at least one argument. */
if (list == 0 && list_targets)
{
builtin_error("-t: argument required");
sh_needarg ("-t");
return (EXECUTION_FAILURE);
}
/* We want hash -r to be silent, but hash -- to print hashing info. That
is the reason for the test of expunge_hash_table. */
/* We want hash -r to be silent, but hash -- to print hashing info, so
we test expunge_hash_table. */
if (list == 0 && expunge_hash_table == 0)
{
if (print_hashed_commands () == 0)
if (print_hashed_commands (list_portably) == 0)
printf ("%s: hash table empty\n", this_command_name);
return (EXECUTION_SUCCESS);
}
if (expunge_hash_table)
flush_hashed_filenames ();
phash_flush ();
/* If someone runs `hash -r -t xyz' he will be disappointed. */
if (list_targets)
{
return (list_hashed_filename_targets (list));
}
return (list_hashed_filename_targets (list, list_portably));
#if defined (RESTRICTED_SHELL)
if (restricted && pathname && strchr (pathname, '/'))
{
builtin_error ("%s: restricted", pathname);
sh_restricted (pathname);
return (EXECUTION_FAILURE);
}
#endif
for (opt = EXECUTION_SUCCESS; list; list = list->next)
{
/* Add or rehash the specified commands. */
/* Add, remove or rehash the specified commands. */
w = list->word->word;
if (pathname)
{
@ -152,10 +160,15 @@ hash_builtin (list)
opt = EXECUTION_FAILURE;
}
else
remember_filename (w, pathname, 0, 0);
phash_insert (w, pathname, 0, 0);
}
else if (absolute_program (w))
continue;
else if (delete && phash_remove (w))
{
sh_notfound (w);
opt = EXECUTION_FAILURE;
}
else if (add_hashed_command (w, 0))
opt = EXECUTION_FAILURE;
}
@ -177,51 +190,52 @@ add_hashed_command (w, quiet)
{
full_path = find_user_command (w);
if (full_path && executable_file (full_path))
remember_filename (w, full_path, dot_found_in_search, 0);
phash_insert (w, full_path, dot_found_in_search, 0);
else
{
if (quiet == 0)
builtin_error ("%s: not found", w);
sh_notfound (w);
rv++;
}
if (full_path)
free (full_path);
FREE (full_path);
}
return (rv);
}
/* Print information about current hashed info. */
static int
print_hashed_commands ()
print_hash_info (item)
BUCKET_CONTENTS *item;
{
BUCKET_CONTENTS *item_list;
int bucket, any_printed;
if (hashed_filenames == 0)
return (0);
for (bucket = any_printed = 0; bucket < hashed_filenames->nbuckets; bucket++)
{
item_list = get_hash_bucket (bucket, hashed_filenames);
if (item_list == 0)
continue;
if (any_printed == 0)
{
printf ("hits\tcommand\n");
any_printed++;
}
for ( ; item_list; item_list = item_list->next)
printf ("%4d\t%s\n", item_list->times_found, pathdata(item_list)->path);
}
return (any_printed);
printf ("%4d\t%s\n", item->times_found, pathdata(item)->path);
return 0;
}
static int
list_hashed_filename_targets (list)
print_portable_hash_info (item)
BUCKET_CONTENTS *item;
{
printf ("builtin hash -p %s %s\n", pathdata(item)->path, item->key);
return 0;
}
static int
print_hashed_commands (fmt)
int fmt;
{
if (hashed_filenames == 0 || HASH_ENTRIES (hashed_filenames) == 0)
return (0);
if (fmt == 0)
printf ("hits\tcommand\n");
hash_walk (hashed_filenames, fmt ? print_portable_hash_info : print_hash_info);
return (1);
}
static int
list_hashed_filename_targets (list, fmt)
WORD_LIST *list;
int fmt;
{
int all_found, multiple;
char *target;
@ -232,16 +246,21 @@ list_hashed_filename_targets (list)
for (l = list; l; l = l->next)
{
target = find_hashed_filename (l->word->word);
target = phash_search (l->word->word);
if (target == 0)
{
all_found = 0;
builtin_error ("%s: not found", l->word->word);
sh_notfound (l->word->word);
continue;
}
if (multiple)
printf ("%s\t", l->word->word);
printf ("%s\n", target);
if (fmt)
printf ("builtin hash -p %s %s\n", target, l->word->word);
else
{
if (multiple)
printf ("%s\t", l->word->word);
printf ("%s\n", target);
}
}
return (all_found ? EXECUTION_SUCCESS : EXECUTION_FAILURE);

50
builtins/help.def
View file

@ -1,7 +1,7 @@
This file is help.def, from which is created help.c.
It implements the builtin "help" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -44,6 +44,10 @@ $END
# include <unistd.h>
#endif
#include <errno.h>
#include <filecntl.h>
#include "../shell.h"
#include "../builtins.h"
#include "../pathexp.h"
@ -53,7 +57,12 @@ $END
#include <glob/strmatch.h>
#include <glob/glob.h>
static void show_builtin_command_help __P((void));
#ifndef errno
extern int errno;
#endif
static void show_builtin_command_help __P((void));
static void show_longdoc __P((int));
/* Print out a list of the known functions in the shell, and what they do.
If LIST is supplied, print out the list which matches for each pattern
@ -62,7 +71,7 @@ int
help_builtin (list)
WORD_LIST *list;
{
register int i, j;
register int i;
char *pattern, *name;
int plen, match_found, sflag;
@ -112,8 +121,7 @@ help_builtin (list)
printf ("%s: %s\n", name, shell_builtins[i].short_doc);
if (sflag == 0)
for (j = 0; shell_builtins[i].long_doc[j]; j++)
printf (" %s\n", shell_builtins[i].long_doc[j]);
show_longdoc (i);
match_found++;
}
@ -122,7 +130,7 @@ help_builtin (list)
if (match_found == 0)
{
builtin_error ("no help topics match `%s'. Try `help help'.", pattern);
builtin_error ("no help topics match `%s'. Try `help help' or `man -k %s' or `info %s'.", pattern, pattern, pattern);
return (EXECUTION_FAILURE);
}
@ -130,6 +138,35 @@ help_builtin (list)
return (EXECUTION_SUCCESS);
}
/* By convention, enforced by mkbuiltins.c, if separate help files are being
used, the long_doc array contains one string -- the full pathname of the
help file for this builtin. */
static void
show_longdoc (i)
int i;
{
register int j;
char * const *doc;
int fd;
doc = shell_builtins[i].long_doc;
if (doc && doc[0] && *doc[0] == '/' && doc[1] == (char *)NULL)
{
fd = open (doc[0], O_RDONLY);
if (fd == -1)
{
builtin_error ("%s: cannot open: %s", doc[0], strerror (errno));
return;
}
zcatfd (fd, 1, doc[0]);
close (fd);
}
else
for (j = 0; doc[j]; j++)
printf (" %s\n", doc[j]);
}
static void
show_builtin_command_help ()
{
@ -140,6 +177,7 @@ show_builtin_command_help ()
"These shell commands are defined internally. Type `help' to see this list.\n\
Type `help name' to find out more about the function `name'.\n\
Use `info bash' to find out more about the shell in general.\n\
Use `man -k' or `info' to find out more about commands not in this list.\n\
\n\
A star (*) next to a name means that the command is disabled.\n\
\n");

36
builtins/history.def
View file

@ -1,7 +1,7 @@
This file is history.def, from which is created history.c.
It implements the builtin "history" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -70,6 +70,8 @@ $END
extern int errno;
#endif
extern int current_command_line_count;
static void display_history __P((WORD_LIST *));
static int delete_histent __P((int));
static int delete_last_history __P((void));
@ -89,9 +91,9 @@ int
history_builtin (list)
WORD_LIST *list;
{
int flags, opt, result;
int flags, opt, result, old_history_lines;
char *filename, *delete_arg;
long delete_offset;
intmax_t delete_offset;
flags = 0;
reset_internal_getopt ();
@ -168,7 +170,7 @@ history_builtin (list)
|| (delete_offset < history_base)
|| (delete_offset > (history_base + history_length)))
{
builtin_error ("%s: not a valid history position", delete_arg);
sh_erange (delete_arg, "history position");
return (EXECUTION_FAILURE);
}
opt = delete_offset;
@ -197,10 +199,12 @@ history_builtin (list)
else if (flags & NFLAG) /* Read `new' history from file. */
{
/* Read all of the lines in the file that we haven't already read. */
old_history_lines = history_lines_in_file;
using_history ();
result = read_history_range (filename, history_lines_in_file, -1);
using_history ();
history_lines_in_file = where_history ();
history_lines_this_session += history_lines_in_file - old_history_lines;
}
return (result ? EXECUTION_FAILURE : EXECUTION_SUCCESS);
@ -215,7 +219,7 @@ display_history (list)
WORD_LIST *list;
{
register int i;
long limit;
intmax_t limit;
HIST_ENTRY **hlist;
if (list)
@ -297,10 +301,28 @@ push_history (list)
{
char *s;
/* Delete the last history entry if it was a single entry added to the
history list (generally the `history -s' itself), or if `history -s'
is being used in a compound command and the compound command was
added to the history as a single element (command-oriented history).
If you don't want history -s to remove the compound command from the
history, change #if 0 to #if 1 below. */
#if 0
if (hist_last_line_added && delete_last_history () == 0)
return;
#else
if ((hist_last_line_added || (current_command_line_count > 0 && current_command_first_line_saved && command_oriented_history))
&& delete_last_history () == 0)
#endif
return;
s = string_list (list);
maybe_add_history (s); /* Obeys HISTCONTROL setting. */
/* Call check_add_history with FORCE set to 1 to skip the check against
current_command_line_count. If history -s is used in a compound
command, the above code will delete the compound command's history
entry and this call will add the line to the history as a separate
entry. Without FORCE=1, if current_command_line_count were > 1, the
line would be appended to the entry before the just-deleted entry. */
check_add_history (s, 1); /* obeys HISTCONTROL, HISTIGNORE */
free (s);
}

6
builtins/inlib.def
View file

@ -1,7 +1,7 @@
This file is inlib.def, from which is created inlib.c.
It implements the Apollo-specific builtin "inlib" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -51,7 +51,7 @@ inlib_builtin (list)
if (!list)
{
builtin_error ("usage: inlib pathname [pathname...]");
builtin_usage ();
return (EX_USAGE);
}
@ -64,7 +64,7 @@ inlib_builtin (list)
if (status.all != status_$ok)
{
builtin_error ("inlib failed for %s", list->word->word);
builtin_error ("%s: inlib failed", list->word->word);
return_value = EXECUTION_FAILURE;
}

10
builtins/jobs.def
View file

@ -1,7 +1,7 @@
This file is jobs.def, from which is created jobs.c.
It implements the builtins "jobs" and "disown" in Bash.
Copyright (C) 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -98,7 +98,7 @@ jobs_builtin (list)
case 'x':
if (form != JLIST_STANDARD)
{
builtin_error ("Other options not allowed with `-x'");
builtin_error ("no other options allowed with `-x'");
return (EXECUTION_FAILURE);
}
execute++;
@ -145,7 +145,7 @@ jobs_builtin (list)
if ((job == NO_JOB) || !jobs || !jobs[job])
{
builtin_error ("no such job %s", list->word->word);
sh_badjob (list->word->word);
any_failed++;
}
else if (job != DUP_JOB)
@ -219,7 +219,7 @@ disown_builtin (list)
{
int opt, job, retval, nohup_only, running_jobs, all_jobs;
sigset_t set, oset;
long pid_value;
intmax_t pid_value;
nohup_only = running_jobs = all_jobs = 0;
reset_internal_getopt ();
@ -263,7 +263,7 @@ disown_builtin (list)
if (job == NO_JOB || jobs == 0 || job < 0 || job >= job_slots || jobs[job] == 0)
{
builtin_error ("%s: no such job", list ? list->word->word : "current");
sh_badjob (list ? list->word->word : "current");
retval = EXECUTION_FAILURE;
}
else if (nohup_only)

34
builtins/kill.def
View file

@ -1,7 +1,7 @@
This file is kill.def, from which is created kill.c.
It implements the builtin "kill" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -73,10 +73,10 @@ int
kill_builtin (list)
WORD_LIST *list;
{
int signal, any_succeeded, listing, saw_signal;
int sig, any_succeeded, listing, saw_signal;
char *sigspec, *word;
pid_t pid;
long pid_value;
intmax_t pid_value;
if (list == 0)
{
@ -85,7 +85,7 @@ kill_builtin (list)
}
any_succeeded = listing = saw_signal = 0;
signal = SIGTERM;
sig = SIGTERM;
sigspec = "TERM";
/* Process options. */
@ -105,14 +105,14 @@ kill_builtin (list)
{
sigspec = list->word->word;
if (sigspec[0] == '0' && sigspec[1] == '\0')
signal = 0;
sig = 0;
else
signal = decode_signal (sigspec);
sig = decode_signal (sigspec);
list = list->next;
}
else
{
builtin_error ("%s requires an argument", word);
sh_needarg (word);
return (EXECUTION_FAILURE);
}
}
@ -132,7 +132,7 @@ kill_builtin (list)
else if ((*word == '-') && !saw_signal)
{
sigspec = word + 1;
signal = decode_signal (sigspec);
sig = decode_signal (sigspec);
saw_signal++;
list = list->next;
}
@ -144,9 +144,9 @@ kill_builtin (list)
return (display_signal_list (list, 0));
/* OK, we are killing processes. */
if (signal == NO_SIG)
if (sig == NO_SIG)
{
builtin_error ("bad signal spec `%s'", sigspec);
sh_invalidsig (sigspec);
return (EXECUTION_FAILURE);
}
@ -163,12 +163,12 @@ kill_builtin (list)
if (*word == '-')
word++;
if (*word && legal_number (word, &pid_value) && (pid_value == (pid_t)pid_value))
/* Use the entire argument in case of minus sign presence. */
if (*word && legal_number (list->word->word, &pid_value) && (pid_value == (pid_t)pid_value))
{
/* Use the entire argument in case of minus sign presence. */
pid = (pid_t) pid_value;
if (kill_pid (pid, signal, 0) < 0)
if ((pid < -1 ? kill_pid (-pid, sig, 1) : kill_pid (pid, sig, 0)) < 0)
goto signal_error;
else
any_succeeded++;
@ -190,7 +190,7 @@ kill_builtin (list)
if (job < 0 || job >= job_slots || !jobs[job])
{
if (job != DUP_JOB)
builtin_error ("%s: no such job", list->word->word);
sh_badjob (list->word->word);
UNBLOCK_CHILD (oset);
CONTINUE_OR_FAIL;
}
@ -203,11 +203,11 @@ kill_builtin (list)
UNBLOCK_CHILD (oset);
if (kill_pid (pid, signal, 1) < 0)
if (kill_pid (pid, sig, 1) < 0)
{
signal_error:
if (errno == EINVAL)
builtin_error ("Invalid signal %d", signal);
sh_invalidsig (sigspec);
else
builtin_error ("(%ld) - %s", (long)pid, strerror (errno));
CONTINUE_OR_FAIL;
@ -217,7 +217,7 @@ kill_builtin (list)
}
else
{
builtin_error ("`%s': not a pid or valid job spec", list->word->word);
sh_badpid (list->word->word);
CONTINUE_OR_FAIL;
}
continue_killing:

22
builtins/let.def
View file

@ -1,7 +1,7 @@
This file is let.def, from which is created let.c.
It implements the builtin "let" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -24,13 +24,16 @@ $FUNCTION let_builtin
$PRODUCES let.c
$SHORT_DOC let arg [arg ...]
Each ARG is an arithmetic expression to be evaluated. Evaluation
is done in long integers with no check for overflow, though division
by 0 is trapped and flagged as an error. The following list of
operators is grouped into levels of equal-precedence operators.
is done in fixed-width integers with no check for overflow, though
division by 0 is trapped and flagged as an error. The following
list of operators is grouped into levels of equal-precedence operators.
The levels are listed in order of decreasing precedence.
id++, id-- variable post-increment, post-decrement
++id, --id variable pre-increment, pre-decrement
-, + unary minus, plus
!, ~ logical and bitwise negation
** exponentiation
*, /, % multiplication, division, remainder
+, - addition, subtraction
<<, >> left and right bitwise shifts
@ -48,7 +51,7 @@ The levels are listed in order of decreasing precedence.
&=, ^=, |= assignment
Shell variables are allowed as operands. The name of the variable
is replaced by its value (coerced to a long integer) within
is replaced by its value (coerced to a fixed-width integer) within
an expression. The variable need not have its integer attribute
turned on to be used in an expression.
@ -77,9 +80,13 @@ int
let_builtin (list)
WORD_LIST *list;
{
long ret;
intmax_t ret;
int expok;
/* Skip over leading `--' argument. */
if (list && list->word && ISOPTION (list->word->word, '-'))
list = list->next;
if (list == 0)
{
builtin_error ("expression expected");
@ -102,7 +109,8 @@ exp_builtin (list)
WORD_LIST *list;
{
char *exp;
int ret, expok;
intmax_t ret;
int expok;
if (list == 0)
{

128
builtins/mkbuiltins.c
View file

@ -1,7 +1,7 @@
/* mkbuiltins.c - Create builtins.c, builtext.h, and builtdoc.c from
a single source file called builtins.def. */
/* Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -38,11 +38,16 @@ Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#include "../bashansi.h"
#include <stdio.h>
#include <errno.h>
#include "stdc.h"
#define DOCFILE "builtins.texi"
#ifndef errno
extern int errno;
#endif
static char *xmalloc (), *xrealloc ();
#if !defined (__STDC__) && !defined (strcpy)
@ -66,9 +71,13 @@ int only_documentation = 0;
/* Non-zero means to not do any productions. */
int inhibit_production = 0;
#if !defined (OLDCODE)
int no_long_document = 0;
#endif /* !OLDCODE */
/* Non-zero means to produce separate help files for each builtin, named by
the builtin name, in `./helpfiles'. */
int separate_helpfiles = 0;
/* The name of a directory into which the separate external help files will
eventually be installed. */
char *helpfile_directory;
/* The name of a directory to precede the filename when reporting
errors. */
@ -149,11 +158,16 @@ void write_documentation ();
void write_longdocs ();
void write_builtins ();
int write_helpfiles ();
void free_defs ();
void add_documentation ();
void must_be_building ();
void remove_trailing_whitespace ();
#define document_name(b) ((b)->docname ? (b)->docname : (b)->name)
/* For each file mentioned on the command line, process it and
write the information to STRUCTFILE and EXTERNFILE, while
@ -204,10 +218,11 @@ main (argc, argv)
only_documentation = 1;
documentation_file = fopen (documentation_filename, "w");
}
#if !defined (OLDCODE)
else if (strcmp (arg, "-nodocument") == 0)
no_long_document = 1;
#endif /* !OLDCODE */
else if (strcmp (arg, "-H") == 0)
{
separate_helpfiles = 1;
helpfile_directory = argv[arg_index++];
}
else
{
fprintf (stderr, "%s: Unknown flag %s.\n", argv[0], arg);
@ -278,6 +293,11 @@ main (argc, argv)
fclose (externfile);
}
if (separate_helpfiles)
{
write_helpfiles (saved_builtins);
}
if (documentation_file)
{
fprintf (documentation_file, "@end ftable\n");
@ -1036,8 +1056,9 @@ save_builtin (builtin)
}
/* Flags that mean something to write_documentation (). */
#define STRING_ARRAY 1
#define TEXINFO 2
#define STRING_ARRAY 1
#define TEXINFO 2
#define PLAINTEXT 4
char *structfile_header[] = {
"/* builtins.c -- the built in shell commands. */",
@ -1045,7 +1066,7 @@ char *structfile_header[] = {
"/* This file is manufactured by ./mkbuiltins, and should not be",
" edited by hand. See the source to mkbuiltins for details. */",
"",
"/* Copyright (C) 1987, 1991, 1992 Free Software Foundation, Inc.",
"/* Copyright (C) 1987-2002 Free Software Foundation, Inc.",
"",
" This file is part of GNU Bash, the Bourne Again SHell.",
"",
@ -1165,8 +1186,8 @@ write_builtins (defs, structfile, externfile)
fprintf (externfile, "extern int %s __P((WORD_LIST *));\n",
builtin->function);
fprintf (externfile, "extern char *%s_doc[];\n",
builtin->docname ? builtin->docname : builtin->name);
fprintf (externfile, "extern char * const %s_doc[];\n",
document_name (builtin));
}
/* Write the structure definition. */
@ -1183,17 +1204,19 @@ write_builtins (defs, structfile, externfile)
"BUILTIN_ENABLED | STATIC_BUILTIN",
(builtin->flags & BUILTIN_FLAG_SPECIAL) ? " | SPECIAL_BUILTIN" : "",
(builtin->flags & BUILTIN_FLAG_ASSIGNMENT) ? " | ASSIGNMENT_BUILTIN" : "",
builtin->docname ? builtin->docname : builtin->name);
document_name (builtin));
fprintf
(structfile, " \"%s\", (char *)NULL },\n",
builtin->shortdoc ? builtin->shortdoc : builtin->name);
/* Save away this builtin for later writing of the
long documentation strings. */
save_builtin (builtin);
}
if (structfile || separate_helpfiles)
/* Save away this builtin for later writing of the
long documentation strings. */
save_builtin (builtin);
/* Write out the matching #endif, if neccessary. */
if (builtin->dependencies)
{
@ -1223,6 +1246,8 @@ write_longdocs (stream, builtins)
{
register int i;
register BUILTIN_DESC *builtin;
char *dname;
char *sarray[2];
for (i = 0; i < builtins->sindex; i++)
{
@ -1232,9 +1257,20 @@ write_longdocs (stream, builtins)
write_ifdefs (stream, builtin->dependencies->array);
/* Write the long documentation strings. */
fprintf (stream, "char *%s_doc[] =",
builtin->docname ? builtin->docname : builtin->name);
write_documentation (stream, builtin->longdoc->array, 0, STRING_ARRAY);
dname = document_name (builtin);
fprintf (stream, "char * const %s_doc[] =", dname);
if (separate_helpfiles)
{
int l = strlen (helpfile_directory) + strlen (dname) + 1;
sarray[0] = (char *)xmalloc (l + 1);
sprintf (sarray[0], "%s/%s", helpfile_directory, dname);
sarray[1] = (char *)NULL;
write_documentation (stream, sarray, 0, STRING_ARRAY);
free (sarray[0]);
}
else
write_documentation (stream, builtin->longdoc->array, 0, STRING_ARRAY);
if (builtin->dependencies)
write_endifs (stream, builtin->dependencies->array);
@ -1321,12 +1357,6 @@ write_documentation (stream, documentation, indentation, flags)
if (string_array)
fprintf (stream, " {\n#if defined (HELP_BUILTIN)\n");
#if !defined (OLDCODE)
/* XXX -- clean me up; for experiment only */
if (no_long_document)
goto end_of_document;
#endif /* !OLDCODE */
for (i = 0, texinfo = (flags & TEXINFO); line = documentation[i]; i++)
{
/* Allow #ifdef's to be written out verbatim. */
@ -1384,14 +1414,52 @@ write_documentation (stream, documentation, indentation, flags)
fprintf (stream, "%s\n", line);
}
#if !defined (OLDCODE)
end_of_document:
#endif /* !OLDCODE */
if (string_array)
fprintf (stream, "#endif /* HELP_BUILTIN */\n (char *)NULL\n};\n");
}
int
write_helpfiles (builtins)
ARRAY *builtins;
{
char *helpfile, *bname;
FILE *helpfp;
int i, hdlen;
BUILTIN_DESC *builtin;
i = mkdir ("helpfiles", 0777);
if (i < 0 && errno != EEXIST)
{
fprintf (stderr, "write_helpfiles: helpfiles: cannot create directory\n");
return -1;
}
hdlen = strlen ("helpfiles/");
for (i = 0; i < builtins->sindex; i++)
{
builtin = (BUILTIN_DESC *)builtins->array[i];
bname = document_name (builtin);
helpfile = (char *)xmalloc (hdlen + strlen (bname) + 1);
sprintf (helpfile, "helpfiles/%s", bname);
helpfp = fopen (helpfile, "w");
if (helpfp == 0)
{
fprintf (stderr, "write_helpfiles: cannot open %s\n", helpfile);
free (helpfile);
continue;
}
write_documentation (helpfp, builtin->longdoc->array, 4, PLAINTEXT);
fflush (helpfp);
fclose (helpfp);
free (helpfile);
}
return 0;
}
static int
_find_in_table (name, name_table)
char *name, *name_table[];

346
builtins/printf.def
View file

@ -1,7 +1,7 @@
This file is printf.def, from which is created printf.c.
It implements the builtin "printf" in Bash.
Copyright (C) 1997 Free Software Foundation, Inc.
Copyright (C) 1997-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -56,18 +56,17 @@ $END
#include "../bashansi.h"
#define NEED_STRTOIMAX_DECL
#include "../shell.h"
#include "stdc.h"
#include "bashgetopt.h"
#include "common.h"
/* This should use the ISO C constant format strings; I'll do that later. */
#if SIZEOF_LONG < SIZEOF_LONG_LONG
# define INTMAX_CONV "ll"
#else
# define INTMAX_CONV "l"
#if !defined (PRIdMAX)
# if HAVE_LONG_LONG
# define PRIdMAX "lld"
# else
# define PRIdMAX "ld"
# endif
#endif
#if !defined (errno)
@ -104,25 +103,28 @@ extern int errno;
#define SKIP1 "#'-+ 0"
#define LENMODS "hjlLtz"
static void printf_erange __P((char *));
static void printstr __P((char *, char *, int, int, int));
static int tescape __P((char *, int, char *, int *));
static char *bexpand __P((char *, int, int *, int *));
static char *mklong __P((char *, char *));
static char *mklong __P((char *, char *, size_t));
static int getchr __P((void));
static char *getstr __P((void));
static int getint __P((void));
static long getlong __P((void));
static unsigned long getulong __P((void));
#if defined (HAVE_LONG_LONG)
static long long getllong __P((void));
static unsigned long long getullong __P((void));
#endif
static intmax_t getintmax __P((void));
static uintmax_t getuintmax __P((void));
static double getdouble __P((void));
#if defined (HAVE_LONG_DOUBLE) && HAVE_DECL_STRTOLD
static long double getldouble __P((void));
typedef long double floatmax_t;
# define FLOATMAX_CONV "L"
# define strtofltmax strtold
#else
typedef double floatmax_t;
# define FLOATMAX_CONV ""
# define strtofltmax strtod
#endif
static floatmax_t getfloatmax __P((void));
static int asciicode __P((void));
static WORD_LIST *garglist;
@ -138,18 +140,15 @@ printf_builtin (list)
{
int ch, fieldwidth, precision;
int have_fieldwidth, have_precision;
long tw;
intmax_t tw;
char convch, thisch, nextch, *format, *modstart, *fmt, *start;
conversion_error = 0;
retval = EXECUTION_SUCCESS;
reset_internal_getopt ();
if (internal_getopt (list, "") != -1)
{
builtin_usage();
return (EX_USAGE);
}
list = loptend;
if (no_options (list))
return (EX_USAGE);
list = loptend; /* skip over possible `--' */
if (list == 0)
{
@ -288,7 +287,7 @@ printf_builtin (list)
bind_var_to_int (var, tw);
else
{
builtin_error ("%s: invalid variable name", var);
sh_invalidid (var);
PRETURN (EXECUTION_FAILURE);
}
}
@ -322,7 +321,10 @@ printf_builtin (list)
char *p, *xp;
p = getstr ();
xp = sh_backslash_quote (p);
if (ansic_shouldquote (p))
xp = ansic_quote (p, 0, (int *)0);
else
xp = sh_backslash_quote (p);
if (xp)
{
/* Use printstr to get fieldwidth and precision right. */
@ -336,32 +338,23 @@ printf_builtin (list)
case 'i':
{
char *f;
#if defined (HAVE_LONG_LONG)
if (thisch == 'l' && nextch == 'l')
{
long long p;
long p;
intmax_t pp;
p = getllong ();
f = mklong (start, "ll");
PF(f, p);
}
else
#endif
if (thisch == 'j')
p = pp = getintmax ();
if (p != pp)
{
intmax_t p;
p = getintmax ();
f = mklong (start, INTMAX_CONV);
PF(f, p);
f = mklong (start, PRIdMAX, sizeof (PRIdMAX) - 2);
PF (f, pp);
}
else
{
long p;
p = getlong ();
f = mklong (start, "l");
PF(f, p);
/* Optimize the common case where the integer fits
in "long". This also works around some long
long and/or intmax_t library bugs in the common
case, e.g. glibc 2.2 x86. */
f = mklong (start, "l", 1);
PF (f, p);
}
break;
}
@ -372,31 +365,18 @@ printf_builtin (list)
case 'X':
{
char *f;
#if defined (HAVE_LONG_LONG)
if (thisch == 'l' && nextch == 'l')
{
unsigned long long p;
unsigned long p;
uintmax_t pp;
p = getullong ();
f = mklong (start, "ll");
PF(f, p);
}
else
#endif
if (thisch == 'j')
p = pp = getuintmax ();
if (p != pp)
{
uintmax_t p;
p = getuintmax ();
f = mklong (start, INTMAX_CONV);
PF(f, p);
f = mklong (start, PRIdMAX, sizeof (PRIdMAX) - 2);
PF (f, pp);
}
else
{
unsigned long p;
p = getulong ();
f = mklong (start, "l");
f = mklong (start, "l", 1);
PF (f, p);
}
break;
@ -414,24 +394,11 @@ printf_builtin (list)
#endif
{
char *f;
#if defined (HAVE_LONG_DOUBLE) && HAVE_DECL_STRTOLD
if (thisch == 'L')
{
long double p;
floatmax_t p;
p = getldouble ();
f = mklong (start, "L");
PF (f, p);
}
else
#endif
{
double p;
p = getdouble ();
f = mklong (start, "");
PF (f, p);
}
p = getfloatmax ();
f = mklong (start, FLOATMAX_CONV, sizeof(FLOATMAX_CONV) - 1);
PF (f, p);
break;
}
@ -454,6 +421,13 @@ printf_builtin (list)
PRETURN (retval);
}
static void
printf_erange (s)
char *s;
{
builtin_error ("warning: %s: %s", s, strerror(ERANGE));
}
/* We duplicate a lot of what printf(3) does here. */
static void
printstr (fmt, string, len, fieldwidth, precision)
@ -605,16 +579,11 @@ tescape (estart, trans_squote, cp, sawc)
/* %b octal constants are `\0' followed by one, two, or three
octal digits... */
case '0':
for (temp = 3, evalue = 0; ISOCTAL (*p) && temp--; p++)
evalue = (evalue * 8) + OCTVALUE (*p);
*cp = evalue & 0xFF;
break;
/* but, as an extension, the other echo-like octal escape
sequences are supported as well. */
case '1': case '2': case '3': case '4':
case '5': case '6': case '7':
for (temp = 2, evalue = c - '0'; ISOCTAL (*p) && temp--; p++)
for (temp = 2+(c=='0'), evalue = c - '0'; ISOCTAL (*p) && temp--; p++)
evalue = (evalue * 8) + OCTVALUE (*p);
*cp = evalue & 0xFF;
break;
@ -706,14 +675,14 @@ bexpand (string, len, sawc, lenp)
}
static char *
mklong (str, modifiers)
mklong (str, modifiers, mlen)
char *str;
char *modifiers;
size_t mlen;
{
size_t len, slen, mlen;
size_t len, slen;
slen = strlen (str);
mlen = strlen (modifiers);
len = slen + mlen + 1;
if (len > conv_bufsize)
@ -759,152 +728,24 @@ getstr ()
static int
getint ()
{
long ret;
intmax_t ret;
ret = getlong ();
ret = getintmax ();
if (ret > INT_MAX)
{
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
printf_erange (garglist->word->word);
ret = INT_MAX;
}
else if (ret < INT_MIN)
{
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
printf_erange (garglist->word->word);
ret = INT_MIN;
}
return ((int)ret);
}
static long
getlong ()
{
long ret;
char *ep;
if (garglist == 0)
return (0);
if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"')
return asciicode ();
errno = 0;
ret = strtol (garglist->word->word, &ep, 0);
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
/* POSIX.2 says ``...a diagnostic message shall be written to standard
error, and the utility shall not exit with a zero exit status, but
shall continue processing any remaining operands and shall write the
value accumulated at the time the error was detected to standard
output.'' Yecch. */
ret = 0;
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
garglist = garglist->next;
return (ret);
}
static unsigned long
getulong ()
{
unsigned long ret;
char *ep;
if (garglist == 0)
return (0);
if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"')
return asciicode ();
errno = 0;
ret = strtoul (garglist->word->word, &ep, 0);
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
/* Same thing about POSIX.2 conversion error requirements as getlong(). */
ret = 0;
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
garglist = garglist->next;
return (ret);
}
#if defined (HAVE_LONG_LONG)
static long long
getllong ()
{
long long ret;
char *ep;
if (garglist == 0)
return (0);
if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"')
return asciicode ();
errno = 0;
ret = strtoll (garglist->word->word, &ep, 0);
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
/* POSIX.2 says ``...a diagnostic message shall be written to standard
error, and the utility shall not exit with a zero exit status, but
shall continue processing any remaining operands and shall write the
value accumulated at the time the error was detected to standard
output.'' Yecch. */
ret = 0;
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
garglist = garglist->next;
return (ret);
}
static unsigned long long
getullong ()
{
unsigned long long ret;
char *ep;
if (garglist == 0)
return (0);
if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"')
return asciicode ();
errno = 0;
ret = strtoull (garglist->word->word, &ep, 0);
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
/* Same thing about POSIX.2 conversion error requirements as getlong(). */
ret = 0;
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
garglist = garglist->next;
return (ret);
}
#endif /* HAVE_LONG_LONG */
static intmax_t
getintmax ()
{
@ -922,7 +763,7 @@ getintmax ()
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
sh_invalidnum (garglist->word->word);
/* POSIX.2 says ``...a diagnostic message shall be written to standard
error, and the utility shall not exit with a zero exit status, but
shall continue processing any remaining operands and shall write the
@ -932,7 +773,7 @@ getintmax ()
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
printf_erange (garglist->word->word);
garglist = garglist->next;
return (ret);
@ -955,22 +796,22 @@ getuintmax ()
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
/* Same thing about POSIX.2 conversion error requirements as getlong(). */
sh_invalidnum (garglist->word->word);
/* Same POSIX.2 conversion error requirements as getintmax(). */
ret = 0;
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
printf_erange (garglist->word->word);
garglist = garglist->next;
return (ret);
}
static double
getdouble ()
static floatmax_t
getfloatmax ()
{
double ret;
floatmax_t ret;
char *ep;
if (garglist == 0)
@ -980,53 +821,22 @@ getdouble ()
return asciicode ();
errno = 0;
ret = strtod (garglist->word->word, &ep);
ret = strtofltmax (garglist->word->word, &ep);
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
sh_invalidnum (garglist->word->word);
/* Same thing about POSIX.2 conversion error requirements. */
ret = 0;
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
printf_erange (garglist->word->word);
garglist = garglist->next;
return (ret);
}
#if defined (HAVE_LONG_DOUBLE) && HAVE_DECL_STRTOLD
static long double
getldouble ()
{
long double ret;
char *ep;
if (garglist == 0)
return (0);
if (garglist->word->word[0] == '\'' || garglist->word->word[0] == '"')
return (asciicode ());
errno = 0;
ret = strtold (garglist->word->word, &ep);
if (*ep)
{
builtin_error ("%s: invalid number", garglist->word->word);
/* Same thing about POSIX.2 conversion error requirements. */
ret = 0;
conversion_error = 1;
}
else if (errno == ERANGE)
builtin_error ("warning: %s: %s", garglist->word->word, strerror(ERANGE));
garglist = garglist->next;
return (ret);
}
#endif /* HAVE_LONG_DOUBLE && HAVE_DECL_STRTOLD */
/* NO check is needed for garglist here. */
static int
asciicode ()

46
builtins/pushd.def
View file

@ -1,7 +1,7 @@
This file is pushd.def, from which is created pushd.c. It implements the
builtins "pushd", "popd", and "dirs" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -125,8 +125,6 @@ $END
extern int errno;
#endif /* !errno */
static char *m_badarg = "%s: bad argument";
/* The list of remembered directories. */
static char **pushd_directory_list = (char **)NULL;
@ -141,7 +139,7 @@ static void clear_directory_stack __P((void));
static int cd_to_string __P((char *));
static int change_to_temp __P((char *));
static void add_dirstack_element __P((char *));
static int get_dirstack_index __P((long, int, int *));
static int get_dirstack_index __P((intmax_t, int, int *));
#define NOCD 0x01
#define ROTATE 0x02
@ -154,9 +152,12 @@ pushd_builtin (list)
{
char *temp, *current_directory, *top;
int j, flags;
long num;
intmax_t num;
char direction;
if (list && list->word && ISOPTION (list->word->word, '-'))
list = list->next;
/* If there is no argument list then switch current and
top of list. */
if (list == 0)
@ -197,7 +198,7 @@ pushd_builtin (list)
{
if (legal_number (list->word->word + 1, &num) == 0)
{
builtin_error (m_badarg, list->word->word);
sh_invalidnum (list->word->word);
builtin_usage ();
return (EXECUTION_FAILURE);
}
@ -214,7 +215,7 @@ pushd_builtin (list)
}
else if (*list->word->word == '-')
{
bad_option (list->word->word);
sh_invalidopt (list->word->word);
builtin_usage ();
return (EXECUTION_FAILURE);
}
@ -287,7 +288,7 @@ popd_builtin (list)
WORD_LIST *list;
{
register int i;
long which;
intmax_t which;
int flags;
char direction;
char *which_word;
@ -308,7 +309,7 @@ popd_builtin (list)
{
if (legal_number (list->word->word + 1, &which) == 0)
{
builtin_error (m_badarg, list->word->word);
sh_invalidnum (list->word->word);
builtin_usage ();
return (EXECUTION_FAILURE);
}
@ -316,7 +317,7 @@ popd_builtin (list)
}
else if (*list->word->word == '-')
{
bad_option (list->word->word);
sh_invalidopt (list->word->word);
builtin_usage ();
return (EXECUTION_FAILURE);
}
@ -364,7 +365,7 @@ dirs_builtin (list)
WORD_LIST *list;
{
int flags, desired_index, index_flag, vflag;
long i;
intmax_t i;
char *temp, *w;
for (flags = vflag = index_flag = 0, desired_index = -1, w = ""; list; list = list->next)
@ -395,7 +396,7 @@ dirs_builtin (list)
int sign;
if (legal_number (w = list->word->word + 1, &i) == 0)
{
builtin_error (m_badarg, list->word->word);
sh_invalidnum (list->word->word);
builtin_usage ();
return (EXECUTION_FAILURE);
}
@ -404,7 +405,7 @@ dirs_builtin (list)
}
else
{
bad_option (list->word->word);
sh_invalidopt (list->word->word);
builtin_usage ();
return (EXECUTION_FAILURE);
}
@ -475,10 +476,8 @@ pushd_error (offset, arg)
{
if (offset == 0)
builtin_error ("directory stack empty");
else if (arg)
builtin_error ("%s: bad directory stack index", arg);
else
builtin_error ("bad directory stack index");
sh_erange (arg, "directory stack index");
}
static void
@ -525,19 +524,14 @@ static void
add_dirstack_element (dir)
char *dir;
{
int j;
if (directory_list_offset == directory_list_size)
{
j = (directory_list_size += 10) * sizeof (char *);
pushd_directory_list = (char **)xrealloc (pushd_directory_list, j);
}
pushd_directory_list = strvec_resize (pushd_directory_list, directory_list_size += 10);
pushd_directory_list[directory_list_offset++] = dir;
}
static int
get_dirstack_index (ind, sign, indexp)
long ind;
intmax_t ind;
int sign, *indexp;
{
if (indexp)
@ -565,7 +559,7 @@ get_dirstack_from_string (string)
char *string;
{
int ind, sign, index_flag;
long i;
intmax_t i;
sign = 1;
if (*string == '-' || *string == '+')
@ -589,7 +583,7 @@ get_dirstack_from_string (string)
#ifdef INCLUDE_UNUSED
char *
get_dirstack_element (ind, sign)
long ind;
intmax_t ind;
int sign;
{
int i;
@ -602,7 +596,7 @@ get_dirstack_element (ind, sign)
void
set_dirstack_element (ind, sign, value)
long ind;
intmax_t ind;
int sign;
char *value;
{

143
builtins/read.def
View file

@ -1,7 +1,7 @@
This file is read.def, from which is created read.c.
It implements the builtin "read" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -23,25 +23,28 @@ $PRODUCES read.c
$BUILTIN read
$FUNCTION read_builtin
$SHORT_DOC read [-ers] [-t timeout] [-p prompt] [-a array] [-n nchars] [-d delim] [name ...]
One line is read from the standard input, and the first word is
assigned to the first NAME, the second word to the second NAME, and so
on, with leftover words assigned to the last NAME. Only the characters
found in $IFS are recognized as word delimiters. If no NAMEs are supplied,
the line read is stored in the REPLY variable. If the -r option is given,
this signifies `raw' input, and backslash escaping is disabled. The
-d option causes read to continue until the first character of DELIM is
read, rather than newline. If the `-p' option is supplied, the string
PROMPT is output without a trailing newline before attempting to read.
If -a is supplied, the words read are assigned to sequential indices of
ARRAY, starting at zero. If -e is supplied and the shell is interactive,
readline is used to obtain the line. If -n is supplied with a non-zero
NCHARS argument, read returns after NCHARS characters have been read.
The -s option causes input coming from a terminal to not be echoed.
$SHORT_DOC read [-ers] [-u fd] [-t timeout] [-p prompt] [-a array] [-n nchars] [-d delim] [name ...]
One line is read from the standard input, or from file descriptor FD if the
-u option is supplied, and the first word is assigned to the first NAME,
the second word to the second NAME, and so on, with leftover words assigned
to the last NAME. Only the characters found in $IFS are recognized as word
delimiters. If no NAMEs are supplied, the line read is stored in the REPLY
variable. If the -r option is given, this signifies `raw' input, and
backslash escaping is disabled. The -d option causes read to continue
until the first character of DELIM is read, rather than newline. If the -p
option is supplied, the string PROMPT is output without a trailing newline
before attempting to read. If -a is supplied, the words read are assigned
to sequential indices of ARRAY, starting at zero. If -e is supplied and
the shell is interactive, readline is used to obtain the line. If -n is
supplied with a non-zero NCHARS argument, read returns after NCHARS
characters have been read. The -s option causes input coming from a
terminal to not be echoed.
The -t option causes read to time out and return failure if a complete line
of input is not read within TIMEOUT seconds. The return code is zero,
unless end-of-file is encountered or read times out.
of input is not read within TIMEOUT seconds. If the TMOUT variable is set,
its value is the default timeout. The return code is zero, unless end-of-file
is encountered, read times out, or an invalid file descriptor is supplied as
the argument to -u.
$END
#include <config.h>
@ -78,8 +81,6 @@ $END
extern int errno;
#endif
#define issep(c) (strchr (ifs_chars, (c)))
extern int interrupt_immediately;
#if defined (READLINE)
@ -123,9 +124,9 @@ read_builtin (list)
register char *varname;
int size, i, pass_next, saw_escape, eof, opt, retval, code;
int input_is_tty, input_is_pipe, unbuffered_read;
int raw, edit, nchars, silent, have_timeout;
int raw, edit, nchars, silent, have_timeout, fd;
unsigned int tmout;
long timeoutval, ncharsval;
intmax_t intval;
char c;
char *input_string, *orig_input_string, *ifs_chars, *prompt, *arrayname;
char *e, *t, *t1;
@ -162,6 +163,7 @@ read_builtin (list)
raw = edit = 0; /* Not reading raw input by default. */
silent = 0;
arrayname = prompt = (char *)NULL;
fd = 0; /* file descriptor to read from */
#if defined (READLINE)
rlbuf = (char *)0;
@ -173,7 +175,7 @@ read_builtin (list)
delim = '\n'; /* read until newline */
reset_internal_getopt ();
while ((opt = internal_getopt (list, "erp:a:d:t:n:s")) != -1)
while ((opt = internal_getopt (list, "ersa:d:n:p:t:u:")) != -1)
{
switch (opt)
{
@ -197,8 +199,8 @@ read_builtin (list)
break;
#endif
case 't':
code = legal_number (list_optarg, &timeoutval);
if (code == 0 || timeoutval < 0 || timeoutval != (unsigned int)timeoutval)
code = legal_number (list_optarg, &intval);
if (code == 0 || intval < 0 || intval != (unsigned int)intval)
{
builtin_error ("%s: invalid timeout specification", list_optarg);
return (EXECUTION_FAILURE);
@ -206,18 +208,33 @@ read_builtin (list)
else
{
have_timeout = 1;
tmout = timeoutval;
tmout = intval;
}
break;
case 'n':
code = legal_number (list_optarg, &ncharsval);
if (code == 0 || ncharsval < 0 || ncharsval != (int)ncharsval)
code = legal_number (list_optarg, &intval);
if (code == 0 || intval < 0 || intval != (int)intval)
{
builtin_error ("%s: invalid number specification", list_optarg);
sh_invalidnum (list_optarg);
return (EXECUTION_FAILURE);
}
else
nchars = ncharsval;
nchars = intval;
break;
case 'u':
code = legal_number (list_optarg, &intval);
if (code == 0 || intval < 0 || intval != (int)intval)
{
builtin_error ("%s: invalid file descriptor specification", list_optarg);
return (EXECUTION_FAILURE);
}
else
fd = intval;
if (sh_validfd (fd) == 0)
{
builtin_error ("%d: invalid file descriptor: %s", fd, strerror (errno));
return (EXECUTION_FAILURE);
}
break;
case 'd':
delim = *list_optarg;
@ -229,24 +246,32 @@ read_builtin (list)
}
list = loptend;
/* `read -t 0 var' returns failure immediately. */
/* `read -t 0 var' returns failure immediately. XXX - should it test
whether input is available with select/FIONREAD, and fail if those
are unavailable? */
if (have_timeout && tmout == 0)
return (EXECUTION_FAILURE);
/* IF IFS is unset, we use the default of " \t\n". */
var = find_variable ("IFS");
ifs_chars = var ? value_cell (var) : " \t\n";
if (ifs_chars == 0) /* XXX */
ifs_chars = ""; /* XXX */
ifs_chars = getifs ();
if (ifs_chars == 0) /* XXX - shouldn't happen */
ifs_chars = "";
input_string = (char *)xmalloc (size = 128);
input_string = (char *)xmalloc (size = 112); /* XXX was 128 */
/* $TMOUT, if set, is the default timeout for read. */
if (have_timeout == 0 && (e = get_string_value ("TMOUT")))
{
code = legal_number (e, &intval);
if (code == 0 || intval < 0 || intval != (unsigned int)intval)
tmout = 0;
else
tmout = intval;
}
begin_unwind_frame ("read_builtin");
#if defined (READLINE)
add_unwind_protect (xfree, rlbuf);
#endif
input_is_tty = isatty (0);
input_is_tty = isatty (fd);
if (input_is_tty == 0)
#ifndef __CYGWIN__
input_is_pipe = (lseek (0, 0L, SEEK_CUR) < 0) && (errno == ESPIPE);
@ -262,6 +287,11 @@ read_builtin (list)
edit = silent = 0;
}
#if defined (READLINE)
if (edit)
add_unwind_protect (xfree, rlbuf);
#endif
if (prompt && edit == 0)
{
fprintf (stderr, "%s", prompt);
@ -275,7 +305,7 @@ read_builtin (list)
{
/* Turn off the timeout if stdin is a regular file (e.g. from
input redirection). */
if ((fstat (0, &tsb) < 0) || S_ISREG (tsb.st_mode))
if ((fstat (fd, &tsb) < 0) || S_ISREG (tsb.st_mode))
tmout = 0;
}
@ -341,7 +371,7 @@ read_builtin (list)
setmode (0, O_TEXT);
#endif
for (eof = 0;;)
for (eof = retval = 0;;)
{
#if defined (READLINE)
if (edit)
@ -368,9 +398,9 @@ read_builtin (list)
#endif
if (unbuffered_read)
retval = zread (0, &c, 1);
retval = zread (fd, &c, 1);
else
retval = zreadc (0, &c);
retval = zreadc (fd, &c);
if (retval <= 0)
{
@ -425,6 +455,14 @@ read_builtin (list)
}
input_string[i] = '\0';
#if 1
if (retval < 0)
{
builtin_error ("read error: %d: %s", fd, strerror (errno));
return (EXECUTION_FAILURE);
}
#endif
if (tmout > 0)
reset_alarm ();
@ -447,7 +485,7 @@ read_builtin (list)
ttrestore ();
if (unbuffered_read == 0)
zsyncfd (0);
zsyncfd (fd);
interrupt_immediately--;
discard_unwind_frame ("read_builtin");
@ -462,7 +500,7 @@ read_builtin (list)
var = find_or_make_array_variable (arrayname, 1);
if (var == 0)
return EXECUTION_FAILURE; /* readonly or noassign */
empty_array (array_cell (var));
array_flush (array_cell (var));
alist = list_string (input_string, ifs_chars, 0);
if (alist)
@ -487,7 +525,7 @@ read_builtin (list)
{
#if 0
orig_input_string = input_string;
for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && issep(*t); t++)
for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && isifs(*t); t++)
;
input_string = t;
input_string = strip_trailing_ifs_whitespace (input_string, ifs_chars, saw_escape);
@ -513,7 +551,7 @@ read_builtin (list)
/* Remove IFS white space at the beginning of the input string. If
$IFS is null, no field splitting is performed. */
for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && issep(*t); t++)
for (t = input_string; ifs_chars && *ifs_chars && spctabnl(*t) && isifs(*t); t++)
;
input_string = t;
@ -526,7 +564,7 @@ read_builtin (list)
if (legal_identifier (varname) == 0)
#endif
{
builtin_error ("`%s': not a valid identifier", varname);
sh_invalidid (varname);
xfree (orig_input_string);
return (EXECUTION_FAILURE);
}
@ -574,7 +612,7 @@ read_builtin (list)
if (legal_identifier (list->word->word) == 0)
#endif
{
builtin_error ("`%s': not a valid identifier", list->word->word);
sh_invalidid (list->word->word);
xfree (orig_input_string);
return (EXECUTION_FAILURE);
}
@ -615,6 +653,8 @@ bind_read_variable (name, value)
}
#if defined (READLINE)
static rl_completion_func_t *old_attempted_completion_function;
static char *
edit_line (p)
char *p;
@ -624,7 +664,10 @@ edit_line (p)
if (!bash_readline_initialized)
initialize_readline ();
old_attempted_completion_function = rl_attempted_completion_function;
rl_attempted_completion_function = (rl_completion_func_t *)NULL;
ret = readline (p);
rl_attempted_completion_function = old_attempted_completion_function;
if (ret == 0)
return ret;
len = strlen (ret);

42
builtins/reserved.def
View file

@ -2,7 +2,7 @@ This file is reserved.def, in which the shell reserved words are defined.
It has no direct C file production, but defines builtins for the Bash
builtin help command.
Copyright (C) 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -28,6 +28,19 @@ assumed. For each element in WORDS, NAME is set to that element, and
the COMMANDS are executed.
$END
$BUILTIN for ((
$DOCNAME arith_for
$SHORT_DOC for (( exp1; exp2; exp3 )); do COMMANDS; done
Equivalent to
(( EXP1 ))
while (( EXP2 )); do
COMMANDS
(( EXP3 ))
done
EXP1, EXP2, and EXP3 are arithmetic expressions. If any expression is
omitted, it behaves as if it evaluates to 1.
$END
$BUILTIN select
$SHORT_DOC select NAME [in WORDS ... ;] do COMMANDS; done
The WORDS are expanded, generating a list of words. The
@ -40,7 +53,7 @@ to that word. If the line is empty, WORDS and the prompt are
redisplayed. If EOF is read, the command completes. Any other
value read causes NAME to be set to null. The line read is saved
in the variable REPLY. COMMANDS are executed after each selection
until a break or return command is executed.
until a break command is executed.
$END
$BUILTIN time
@ -103,6 +116,31 @@ WORD, then the job whose name begins with WORD is used. Following the
job specification with a `&' places the job in the background.
$END
$BUILTIN (( ... ))
$DOCNAME arith
$SHORT_DOC (( expression ))
The EXPRESSION is evaluated according to the rules for arithmetic
evaluation. Equivalent to "let EXPRESSION".
$END
$BUILTIN [[ ... ]]
$DOCNAME conditional
$SHORT_DOC [[ expression ]]
Returns a status of 0 or 1 depending on the evaluation of the conditional
expression EXPRESSION. Expressions are composed of the same primaries used
by the `test' builtin, and may be combined using the following operators
( EXPRESSION ) Returns the value of EXPRESSION
! EXPRESSION True if EXPRESSION is false; else false
EXPR1 && EXPR2 True if both EXPR1 and EXPR2 are true; else false
EXPR1 || EXPR2 True if either EXPR1 or EXPR2 is true; else false
When the `==' and `!=' operators are used, the string to the right of the
operator is used as a pattern and pattern matching is performed. The
&& and || operators do not evaluate EXPR2 if EXPR1 is sufficient to
determine the expression's value.
$END
$BUILTIN variables
$DOCNAME variable_help
$SHORT_DOC variables - Some variable names and meanings

4
builtins/return.def
View file

@ -1,7 +1,7 @@
This file is return.def, from which is created return.c.
It implements the builtin "return" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -52,7 +52,7 @@ int
return_builtin (list)
WORD_LIST *list;
{
return_catch_value = list ? get_exitstat (list) : last_command_exit_value;
return_catch_value = get_exitstat (list);
if (return_catch_flag)
longjmp (return_catch, 1);

298
builtins/set.def
View file

@ -1,7 +1,7 @@
This file is set.def, from which is created set.c.
It implements the "set" and "unset" builtins in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -49,7 +49,7 @@ $PRODUCES set.c
# include "../bashhist.h"
#endif
extern int noclobber, posixly_correct, ignoreeof, eof_encountered_limit;
extern int posixly_correct, ignoreeof, eof_encountered_limit;
#if defined (HISTORY)
extern int dont_save_function_defs;
#endif
@ -65,8 +65,6 @@ $SHORT_DOC set [--abefhkmnptuvxBCHP] [-o option] [arg ...]
-e Exit immediately if a command exits with a non-zero status.
-f Disable file name generation (globbing).
-h Remember the location of commands as they are looked up.
-i Force the shell to be an "interactive" one. Interactive shells
always read `~/.bashrc' on startup.
-k All assignment arguments are placed in the environment for a
command, not just those that precede the command name.
-m Job control is enabled.
@ -135,6 +133,9 @@ parameters and are assigned, in order, to $1, $2, .. $n. If no
ARGs are given, all shell variables are printed.
$END
typedef int setopt_set_func_t __P((int, char *));
typedef int setopt_get_func_t __P((char *));
static void print_minus_o_option __P((char *, int, int));
static void print_all_shell_variables __P((void));
@ -153,70 +154,66 @@ static int bash_set_history __P((int, char *));
static char *on = "on";
static char *off = "off";
/* An a-list used to match long options for set -o to the corresponding
option letter. */
/* A struct used to match long options for set -o to the corresponding
option letter or internal variable. The functions can be called to
dynamically generate values. */
struct {
char *name;
int letter;
} o_options[] = {
{ "allexport", 'a' },
#if defined (BRACE_EXPANSION)
{ "braceexpand",'B' },
#endif
{ "errexit", 'e' },
{ "hashall", 'h' },
#if defined (BANG_HISTORY)
{ "histexpand", 'H' },
#endif /* BANG_HISTORY */
{ "keyword", 'k' },
{ "monitor", 'm' },
{ "noclobber", 'C' },
{ "noexec", 'n' },
{ "noglob", 'f' },
#if defined (JOB_CONTROL)
{ "notify", 'b' },
#endif /* JOB_CONTROL */
{ "nounset", 'u' },
{ "onecmd", 't' },
{ "physical", 'P' },
{ "privileged", 'p' },
{ "verbose", 'v' },
{ "xtrace", 'x' },
{(char *)NULL, 0 },
};
typedef int setopt_set_func_t __P((int, char *));
typedef int setopt_get_func_t __P((char *));
struct {
char *name;
int *variable;
setopt_set_func_t *set_func;
setopt_get_func_t *get_func;
} binary_o_options[] = {
#if defined (HISTORY)
{ "history", &remember_on_history, bash_set_history, (setopt_get_func_t *)NULL },
} o_options[] = {
{ "allexport", 'a', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#if defined (BRACE_EXPANSION)
{ "braceexpand",'B', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#endif
{ "ignoreeof", &ignoreeof, set_ignoreeof, (setopt_get_func_t *)NULL },
{ "interactive-comments", &interactive_comments, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#if defined (HISTORY)
{ "nolog", &dont_save_function_defs, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#endif
{ "posix", &posixly_correct, set_posix_mode, (setopt_get_func_t *)NULL },
#if defined (READLINE)
{ "emacs", (int *)NULL, set_edit_mode, get_edit_mode },
{ "vi", (int *)NULL, set_edit_mode, get_edit_mode },
{ "emacs", '\0', (int *)NULL, set_edit_mode, get_edit_mode },
#endif
{ (char *)NULL, (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL }
{ "errexit", 'e', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "hashall", 'h', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#if defined (BANG_HISTORY)
{ "histexpand", 'H', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#endif /* BANG_HISTORY */
#if defined (HISTORY)
{ "history", '\0', &remember_on_history, bash_set_history, (setopt_get_func_t *)NULL },
#endif
{ "ignoreeof", '\0', &ignoreeof, set_ignoreeof, (setopt_get_func_t *)NULL },
{ "interactive-comments", '\0', &interactive_comments, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "keyword", 'k', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "monitor", 'm', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "noclobber", 'C', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "noexec", 'n', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "noglob", 'f', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#if defined (HISTORY)
{ "nolog", '\0', &dont_save_function_defs, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#endif
#if defined (JOB_CONTROL)
{ "notify", 'b', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#endif /* JOB_CONTROL */
{ "nounset", 'u', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "onecmd", 't', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "physical", 'P', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "posix", '\0', &posixly_correct, set_posix_mode, (setopt_get_func_t *)NULL },
{ "privileged", 'p', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{ "verbose", 'v', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
#if defined (READLINE)
{ "vi", '\0', (int *)NULL, set_edit_mode, get_edit_mode },
#endif
{ "xtrace", 'x', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
{(char *)NULL, 0 , (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
};
#define N_O_OPTIONS (sizeof (o_options) / sizeof (o_options[0]))
#define GET_BINARY_O_OPTION_VALUE(i, name) \
((binary_o_options[i].get_func) ? (*binary_o_options[i].get_func) (name) \
: (*binary_o_options[i].variable))
((o_options[i].get_func) ? (*o_options[i].get_func) (name) \
: (*o_options[i].variable))
#define SET_BINARY_O_OPTION_VALUE(i, onoff, name) \
((binary_o_options[i].set_func) ? (*binary_o_options[i].set_func) (onoff, name) \
: (*binary_o_options[i].variable = (onoff == FLAG_ON)))
((o_options[i].set_func) ? (*o_options[i].set_func) (onoff, name) \
: (*o_options[i].variable = (onoff == FLAG_ON)))
int
minus_o_option_value (name)
@ -229,15 +226,15 @@ minus_o_option_value (name)
{
if (STREQ (name, o_options[i].name))
{
on_or_off = find_flag (o_options[i].letter);
return ((on_or_off == FLAG_UNKNOWN) ? -1 : *on_or_off);
if (o_options[i].letter)
{
on_or_off = find_flag (o_options[i].letter);
return ((on_or_off == FLAG_UNKNOWN) ? -1 : *on_or_off);
}
else
return (GET_BINARY_O_OPTION_VALUE (i, name));
}
}
for (i = 0; binary_o_options[i].name; i++)
{
if (STREQ (name, binary_o_options[i].name))
return (GET_BINARY_O_OPTION_VALUE (i, name));
}
return (-1);
}
@ -262,19 +259,23 @@ list_minus_o_opts (mode, reusable)
register int i;
int *on_or_off, value;
for (value = i = 0; o_options[i].name; i++)
for (i = 0; o_options[i].name; i++)
{
on_or_off = find_flag (o_options[i].letter);
if (on_or_off == FLAG_UNKNOWN)
on_or_off = &value;
if (mode == -1 || mode == *on_or_off)
print_minus_o_option (o_options[i].name, *on_or_off, reusable);
}
for (i = 0; binary_o_options[i].name; i++)
{
value = GET_BINARY_O_OPTION_VALUE (i, binary_o_options[i].name);
if (mode == -1 || mode == value)
print_minus_o_option (binary_o_options[i].name, value, reusable);
if (o_options[i].letter)
{
value = 0;
on_or_off = find_flag (o_options[i].letter);
if (on_or_off == FLAG_UNKNOWN)
on_or_off = &value;
if (mode == -1 || mode == *on_or_off)
print_minus_o_option (o_options[i].name, *on_or_off, reusable);
}
else
{
value = GET_BINARY_O_OPTION_VALUE (i, o_options[i].name);
if (mode == -1 || mode == value)
print_minus_o_option (o_options[i].name, value, reusable);
}
}
}
@ -282,16 +283,12 @@ char **
get_minus_o_opts ()
{
char **ret;
int n, i, ind;
int i;
n = (sizeof (o_options) / sizeof (o_options[0])) +
(sizeof (binary_o_options) / sizeof (binary_o_options[0]));
ret = alloc_array (n + 1);
for (i = ind = 0; o_options[i].name; i++)
ret[ind++] = o_options[i].name;
for (i = 0; binary_o_options[i].name; i++)
ret[ind++] = binary_o_options[i].name;
ret[ind] = (char *)NULL;
ret = strvec_create (N_O_OPTIONS + 1);
for (i = 0; o_options[i].name; i++)
ret[i] = o_options[i].name;
ret[i] = (char *)NULL;
return ret;
}
@ -386,37 +383,33 @@ set_minus_o_option (on_or_off, option_name)
int on_or_off;
char *option_name;
{
int option_char;
register int i;
for (i = 0; binary_o_options[i].name; i++)
{
if (STREQ (option_name, binary_o_options[i].name))
{
SET_BINARY_O_OPTION_VALUE (i, on_or_off, option_name);
return (EXECUTION_SUCCESS);
}
}
for (i = 0, option_char = -1; o_options[i].name; i++)
for (i = 0; o_options[i].name; i++)
{
if (STREQ (option_name, o_options[i].name))
{
option_char = o_options[i].letter;
break;
if (o_options[i].letter == 0)
{
SET_BINARY_O_OPTION_VALUE (i, on_or_off, option_name);
return (EXECUTION_SUCCESS);
}
else
{
if (change_flag (o_options[i].letter, on_or_off) == FLAG_ERROR)
{
sh_invalidoptname (option_name);
return (EXECUTION_FAILURE);
}
else
return (EXECUTION_SUCCESS);
}
}
}
if (option_char == -1)
{
builtin_error ("%s: unknown option name", option_name);
return (EXECUTION_FAILURE);
}
if (change_flag (option_char, on_or_off) == FLAG_ERROR)
{
bad_option (option_name);
return (EXECUTION_FAILURE);
}
return (EXECUTION_SUCCESS);
sh_invalidoptname (option_name);
return (EXECUTION_FAILURE);
}
static void
@ -448,38 +441,41 @@ void
set_shellopts ()
{
char *value;
char tflag[N_O_OPTIONS];
int vsize, i, vptr, *ip, exported;
SHELL_VAR *v;
for (vsize = i = 0; o_options[i].name; i++)
{
ip = find_flag (o_options[i].letter);
if (ip && *ip)
vsize += strlen (o_options[i].name) + 1;
tflag[i] = 0;
if (o_options[i].letter)
{
ip = find_flag (o_options[i].letter);
if (ip && *ip)
{
vsize += strlen (o_options[i].name) + 1;
tflag[i] = 1;
}
}
else if (GET_BINARY_O_OPTION_VALUE (i, o_options[i].name))
{
vsize += strlen (o_options[i].name) + 1;
tflag[i] = 1;
}
}
for (i = 0; binary_o_options[i].name; i++)
if (GET_BINARY_O_OPTION_VALUE (i, binary_o_options[i].name))
vsize += strlen (binary_o_options[i].name) + 1;
value = (char *)xmalloc (vsize + 1);
for (i = vptr = 0; o_options[i].name; i++)
{
ip = find_flag (o_options[i].letter);
if (ip && *ip)
if (tflag[i])
{
strcpy (value + vptr, o_options[i].name);
vptr += strlen (o_options[i].name);
value[vptr++] = ':';
}
}
for (i = 0; binary_o_options[i].name; i++)
if (GET_BINARY_O_OPTION_VALUE (i, binary_o_options[i].name))
{
strcpy (value + vptr, binary_o_options[i].name);
vptr += strlen (binary_o_options[i].name);
value[vptr++] = ':';
}
if (vptr)
vptr--; /* cut off trailing colon */
value[vptr] = '\0';
@ -571,6 +567,7 @@ set_builtin (list)
int on_or_off, flag_name, force_assignment, opts_changed;
WORD_LIST *l;
register char *arg;
char s[3];
if (list == 0)
{
@ -579,34 +576,19 @@ set_builtin (list)
}
/* Check validity of flag arguments. */
if (*list->word->word == '-' || *list->word->word == '+')
reset_internal_getopt ();
while ((flag_name = internal_getopt (list, optflags)) != -1)
{
for (l = list; l && (arg = l->word->word); l = l->next)
switch (flag_name)
{
char c;
if (arg[0] != '-' && arg[0] != '+')
case '?':
builtin_usage ();
return (list_optopt == '?' ? EXECUTION_SUCCESS : EX_USAGE);
default:
break;
/* `-' or `--' signifies end of flag arguments. */
if (arg[0] == '-' && (!arg[1] || (arg[1] == '-' && !arg[2])))
break;
while (c = *++arg)
{
if (find_flag (c) == FLAG_UNKNOWN && c != 'o')
{
char s[2];
s[0] = c; s[1] = '\0';
bad_option (s);
if (c == '?')
builtin_usage ();
return (c == '?' ? EXECUTION_SUCCESS : EXECUTION_FAILURE);
}
}
}
}
/* Do the set command. While the list consists of words starting with
'-' or '+' treat them as flags, otherwise, start assigning them to
$1 ... $n. */
@ -678,11 +660,10 @@ set_builtin (list)
}
else if (change_flag (flag_name, on_or_off) == FLAG_ERROR)
{
char opt[3];
opt[0] = on_or_off;
opt[1] = flag_name;
opt[2] = '\0';
bad_option (opt);
s[0] = on_or_off;
s[1] = flag_name;
s[2] = '\0';
sh_invalidopt (s);
builtin_usage ();
set_shellopts ();
return (EXECUTION_FAILURE);
@ -777,7 +758,7 @@ unset_builtin (list)
mode when unsetting a function. */
if (((unset_function && posixly_correct) || !unset_function) && legal_identifier (name) == 0)
{
builtin_error ("`%s': not a valid identifier", name);
sh_invalidid (name);
NEXT_VARIABLE ();
}
@ -807,22 +788,27 @@ unset_builtin (list)
NEXT_VARIABLE ();
}
else
tem = unbind_array_element (var, t);
{
tem = unbind_array_element (var, t);
if (tem == -1)
any_failed++;
}
}
else
#endif /* ARRAY_VARS */
tem = makunbound (name, unset_function ? shell_functions : shell_variables);
tem = unset_function ? unbind_func (name) : unbind_variable (name);
/* This is what Posix.2 draft 11+ says. ``If neither -f nor -v
is specified, the name refers to a variable; if a variable by
that name does not exist, a function by that name, if any,
shall be unset.'' */
if (tem == -1 && !unset_function && !unset_variable)
tem = makunbound (name, shell_functions);
tem = unbind_func (name);
if (tem == -1)
any_failed++;
else if (!unset_function)
/* SUSv3, POSIX.1-2001 say: ``Unsetting a variable or function that
was not previously set shall not be considered an error.'' */
if (unset_function == 0)
stupidly_hack_special_variables (name);
list = list->next;

80
builtins/setattr.def
View file

@ -1,7 +1,7 @@
This file is setattr.def, from which is created setattr.c.
It implements the builtins "export" and "readonly", in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -43,7 +43,7 @@ extern char *this_command_name;
extern sh_builtin_func_t *this_shell_builtin;
#ifdef ARRAY_VARS
extern int declare_builtin ();
extern int declare_builtin __P((WORD_LIST *));
#endif
#define READONLY_OR_EXPORT \
@ -51,7 +51,7 @@ extern int declare_builtin ();
$BUILTIN export
$FUNCTION export_builtin
$SHORT_DOC export [-nf] [name ...] or export -p
$SHORT_DOC export [-nf] [name[=value] ...] or export -p
NAMEs are marked for automatic export to the environment of
subsequently executed commands. If the -f option is given,
the NAMEs refer to functions. If no NAMEs are given, or if `-p'
@ -75,7 +75,7 @@ export_builtin (list)
$BUILTIN readonly
$FUNCTION readonly_builtin
$SHORT_DOC readonly [-anf] [name ...] or readonly -p
$SHORT_DOC readonly [-anf] [name[=value] ...] or readonly -p
The given NAMEs are marked readonly and the values of these NAMEs may
not be changed by subsequent assignment. If the -f option is given,
then functions corresponding to the NAMEs are so marked. If no
@ -95,6 +95,12 @@ readonly_builtin (list)
return (set_or_show_attributes (list, att_readonly, 0));
}
#if defined (ARRAY_VARS)
# define ATTROPTS "afnp"
#else
# define ATTROPTS "fnp"
#endif
/* For each variable name in LIST, make that variable have the specified
ATTRIBUTE. An arg of `-n' says to remove the attribute from the the
remaining names in LIST. */
@ -114,7 +120,7 @@ set_or_show_attributes (list, attribute, nodefs)
undo = functions_only = arrays_only = any_failed = assign_error = 0;
/* Read arguments from the front of the list. */
reset_internal_getopt ();
while ((opt = internal_getopt (list, "anfp")) != -1)
while ((opt = internal_getopt (list, ATTROPTS)) != -1)
{
switch (opt)
{
@ -174,7 +180,7 @@ set_or_show_attributes (list, attribute, nodefs)
if (legal_identifier (name) == 0)
{
builtin_error ("`%s': not a valid identifier", name);
sh_invalidid (name);
if (assign)
assign_error++;
else
@ -248,11 +254,7 @@ set_or_show_attributes (list, attribute, nodefs)
if (arrays_only && array_p (var) == 0)
continue;
#endif
#if 0
if ((var->attributes & attribute) && invisible_p (var) == 0)
#else
if ((var->attributes & attribute))
#endif
show_var_attributes (var, READONLY_OR_EXPORT, nodefs);
}
free (variable_list);
@ -275,7 +277,7 @@ show_var_attributes (var, pattr, nodefs)
SHELL_VAR *var;
int pattr, nodefs;
{
char flags[6], *x;
char flags[8], *x;
int i;
i = 0;
@ -297,6 +299,9 @@ show_var_attributes (var, pattr, nodefs)
if (readonly_p (var))
flags[i++] = 'r';
if (trace_p (var))
flags[i++] = 't';
if (exported_p (var))
flags[i++] = 'x';
}
@ -313,6 +318,17 @@ show_var_attributes (var, pattr, nodefs)
flags[i] = '\0';
/* If we're printing functions with definitions, print the function def
first, then the attributes, instead of printing output that can't be
reused as input to recreate the current state. */
if (function_p (var) && nodefs == 0 && (pattr == 0 || posixly_correct == 0))
{
printf ("%s\n", named_function_string (var->name, function_cell (var), 1));
nodefs++;
if (pattr == 0 && i == 1 && flags[0] == 'f')
return 0; /* don't print `declare -f name' */
}
if (pattr == 0 || posixly_correct == 0)
printf ("declare -%s ", i ? flags : "-");
else if (i)
@ -325,7 +341,7 @@ show_var_attributes (var, pattr, nodefs)
print_array_assignment (var, 1);
else
#endif
/* force `readline' and `export' to not print out function definitions
/* force `readonly' and `export' to not print out function definitions
when in POSIX mode. */
if (nodefs || (function_p (var) && pattr != 0 && posixly_correct))
printf ("%s\n", var->name);
@ -335,7 +351,7 @@ show_var_attributes (var, pattr, nodefs)
printf ("%s\n", var->name);
else
{
x = sh_double_quote (value_cell (var) ? value_cell (var) : "");
x = sh_double_quote (var_isset (var) ? value_cell (var) : "");
printf ("%s=%s\n", var->name, x);
free (x);
}
@ -349,15 +365,11 @@ show_name_attributes (name, nodefs)
{
SHELL_VAR *var;
var = find_tempenv_variable (name);
if (var == 0)
var = find_variable (name);
var = find_variable_internal (name, 1);
if (var && invisible_p (var) == 0)
{
show_var_attributes (var, READONLY_OR_EXPORT, nodefs);
if (tempvar_p (var))
dispose_variable (var);
return (0);
}
else
@ -370,23 +382,39 @@ set_var_attribute (name, attribute, undo)
int attribute, undo;
{
SHELL_VAR *var, *tv;
char *tvalue;
if (undo)
var = find_variable (name);
else
{
if (tv = find_tempenv_variable (name))
tv = find_tempenv_variable (name);
/* XXX -- need to handle case where tv is a temp variable in a
function-scope context, since function_env has been merged into
the local variables table. */
if (tv && tempvar_p (tv))
{
var = bind_variable (tv->name, tv->value ? tv->value : "");
dispose_variable (tv);
tvalue = var_isset (tv) ? savestring (value_cell (tv)) : savestring ("");
var = bind_variable (tv->name, tvalue);
var->attributes |= tv->attributes & ~att_tempvar;
VSETATTR (tv, att_propagate);
if (var->context != 0)
VSETATTR (var, att_propagate);
SETVARATTR (tv, attribute, undo); /* XXX */
free (tvalue);
}
else
var = find_variable (name);
if (var == 0)
{
var = bind_variable (name, (char *)NULL);
VSETATTR (var, att_invisible);
var = find_variable_internal (name, 0);
if (var == 0)
{
var = bind_variable (name, (char *)NULL);
VSETATTR (var, att_invisible);
}
else if (var->context != 0)
VSETATTR (var, att_propagate);
}
}

8
builtins/shift.def
View file

@ -1,7 +1,7 @@
This file is shift.def, from which is created shift.c.
It implements the builtin "shift" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -52,7 +52,7 @@ int
shift_builtin (list)
WORD_LIST *list;
{
long times;
intmax_t times;
register int count;
WORD_LIST *temp;
@ -62,13 +62,13 @@ shift_builtin (list)
return (EXECUTION_SUCCESS);
else if (times < 0)
{
builtin_error ("shift count must be >= 0");
sh_erange (list->word->word, "shift count");
return (EXECUTION_FAILURE);
}
else if (times > number_of_args ())
{
if (print_shift_error)
builtin_error ("shift count must be <= $#");
sh_erange (list->word->word, "shift count");
return (EXECUTION_FAILURE);
}

25
builtins/shopt.def
View file

@ -1,7 +1,7 @@
This file is shopt.def, from which is created shopt.c.
It implements the Bash `shopt' builtin.
Copyright (C) 1994 Free Software Foundation, Inc.
Copyright (C) 1994-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -22,7 +22,6 @@ Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
$PRODUCES shopt.c
$BUILTIN shopt
$DOCNAME shopt_builtin
$FUNCTION shopt_builtin
$SHORT_DOC shopt [-pqsu] [-o long-option] optname [optname...]
Toggle the values of variables controlling optional behavior.
@ -59,7 +58,7 @@ $END
extern int allow_null_glob_expansion, glob_dot_filenames;
extern int cdable_vars, mail_warning, source_uses_path;
extern int no_exit_on_failed_exec, print_shift_error;
extern int check_hashed_filenames, promptvars, interactive_comments;
extern int check_hashed_filenames, promptvars;
extern int cdspelling, expand_aliases;
extern int check_window_size;
extern int glob_ignore_case;
@ -86,10 +85,11 @@ extern int prog_completion_enabled;
#endif
#if defined (RESTRICTED_SHELL)
extern int restricted_shell;
extern char *shell_name;
#endif
static void shopt_error __P((char *));
static int set_interactive_comments __P((int));
#if defined (RESTRICTED_SHELL)
@ -268,7 +268,12 @@ find_shopt (name)
return -1;
}
#define SHOPT_ERROR(str) builtin_error ("%s: unknown shell option name", str)
static void
shopt_error (s)
char *s;
{
builtin_error ("%s: invalid shell option name", s);
}
static int
toggle_shopts (mode, list, quiet)
@ -284,7 +289,7 @@ toggle_shopts (mode, list, quiet)
ind = find_shopt (l->word->word);
if (ind < 0)
{
SHOPT_ERROR (l->word->word);
shopt_error (l->word->word);
rval = EXECUTION_FAILURE;
}
else
@ -334,7 +339,7 @@ list_shopts (list, flags)
i = find_shopt (l->word->word);
if (i < 0)
{
SHOPT_ERROR (l->word->word);
shopt_error (l->word->word);
rval = EXECUTION_FAILURE;
continue;
}
@ -383,7 +388,7 @@ list_shopt_o_options (list, flags)
val = minus_o_option_value (l->word->word);
if (val == -1)
{
builtin_error ("%s: unknown option name", l->word->word);
sh_invalidoptname (l->word->word);
rval = EXECUTION_FAILURE;
continue;
}
@ -470,7 +475,7 @@ get_shopt_options ()
int n, i;
n = sizeof (shopt_vars) / sizeof (shopt_vars[0]);
ret = alloc_array (n + 1);
ret = strvec_create (n + 1);
for (i = 0; shopt_vars[i].name; i++)
ret[i] = savestring (shopt_vars[i].name);
ret[i] = (char *)NULL;
@ -509,7 +514,7 @@ shopt_listopt (name, reusable)
i = find_shopt (name);
if (i < 0)
{
SHOPT_ERROR (name);
shopt_error (name);
return (EXECUTION_FAILURE);
}

20
builtins/source.def
View file

@ -1,7 +1,7 @@
This file is source.def, from which is created source.c.
It implements the builtins "." and "source" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -55,6 +55,7 @@ $END
#include "../shell.h"
#include "../findcmd.h"
#include "common.h"
#include "bashgetopt.h"
#if !defined (errno)
extern int errno;
@ -80,13 +81,11 @@ int source_searches_cwd = 1;
static void
maybe_pop_dollar_vars ()
{
if (variable_context == 0 && dollar_vars_changed ())
{
dispose_saved_dollar_vars ();
set_dollar_vars_unchanged ();
}
if (variable_context == 0 && (dollar_vars_changed () & ARGS_SETBLTIN))
dispose_saved_dollar_vars ();
else
pop_dollar_vars ();
set_dollar_vars_unchanged ();
}
/* Read and execute commands from the file passed as argument. Guess what.
@ -100,6 +99,10 @@ source_builtin (list)
int result;
char *filename;
if (no_options (list))
return (EX_USAGE);
list = loptend;
if (list == 0)
{
builtin_error ("filename argument required");
@ -107,13 +110,10 @@ source_builtin (list)
return (EX_USAGE);
}
if (no_options (list))
return (EX_USAGE);
#if defined (RESTRICTED_SHELL)
if (restricted && strchr (list->word->word, '/'))
{
builtin_error ("%s: restricted", list->word->word);
sh_restricted (list->word->word);
return (EXECUTION_FAILURE);
}
#endif

4
builtins/suspend.def
View file

@ -1,7 +1,7 @@
This file is suspend.def, from which is created suspend.c.
It implements the builtin "suspend" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -89,7 +89,7 @@ suspend_builtin (list)
if (job_control == 0)
{
builtin_error ("cannot suspend a shell without job control");
sh_nojobs ("cannot suspend");
return (EXECUTION_FAILURE);
}

4
builtins/test.def
View file

@ -1,7 +1,7 @@
This file is test.def, from which is created test.c.
It implements the builtin "test" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -24,7 +24,7 @@ $PRODUCES test.c
$BUILTIN test
$FUNCTION test_builtin
$SHORT_DOC test [expr]
Exits with a status of 0 (trueness) or 1 (falseness) depending on
Exits with a status of 0 (true) or 1 (false) depending on
the evaluation of EXPR. Expressions may be unary or binary. Unary
expressions are often used to examine the status of a file. There
are string operators as well, and numeric comparison operators.

19
builtins/times.def
View file

@ -1,7 +1,7 @@
This file is times.def, from which is created times.c.
It implements the builtin "times" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -61,6 +61,11 @@ times_builtin (list)
#if defined (HAVE_GETRUSAGE) && defined (HAVE_TIMEVAL) && defined (RUSAGE_SELF)
struct rusage self, kids;
USE_VAR(list);
if (no_options (list))
return (EX_USAGE);
getrusage (RUSAGE_SELF, &self);
getrusage (RUSAGE_CHILDREN, &kids); /* terminated child processes */
@ -79,6 +84,11 @@ times_builtin (list)
`struct tms' with values of type clock_t. */
struct tms t;
USE_VAR(list);
if (no_options (list))
return (EX_USAGE);
times (&t);
print_clock_t (stdout, t.tms_utime);
@ -89,8 +99,15 @@ times_builtin (list)
putchar (' ');
print_clock_t (stdout, t.tms_cstime);
putchar ('\n');
# else /* !HAVE_TIMES */
USE_VAR(list);
if (no_options (list))
return (EX_USAGE);
printf ("0.00 0.00\n0.00 0.00\n");
# endif /* HAVE_TIMES */
#endif /* !HAVE_TIMES */

7
builtins/trap.def
View file

@ -1,7 +1,7 @@
This file is trap.def, from which is created trap.c.
It implements the builtin "trap" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -137,8 +137,7 @@ trap_builtin (list)
if (sig == NO_SIG)
{
builtin_error ("%s: not a signal specification",
list->word->word);
sh_invalidsig (list->word->word);
result = EXECUTION_FAILURE;
}
else
@ -239,8 +238,8 @@ display_traps (list)
i = decode_signal (list->word->word);
if (i == NO_SIG)
{
sh_invalidsig (list->word->word);
result = EXECUTION_FAILURE;
builtin_error ("%s: not a signal specification", list->word->word);
}
else
showtrap (i);

186
builtins/type.def
View file

@ -1,7 +1,7 @@
This file is type.def, from which is created type.c.
It implements the builtin "type" in Bash.
Copyright (C) 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -23,7 +23,7 @@ $PRODUCES type.c
$BUILTIN type
$FUNCTION type_builtin
$SHORT_DOC type [-apt] name [name ...]
$SHORT_DOC type [-afptP] name [name ...]
For each NAME, indicate how it would be interpreted if used as a
command name.
@ -37,8 +37,14 @@ file that would be executed, or nothing if `type -t NAME' would not
return `file'.
If the -a flag is used, `type' displays all of the places that contain
an executable named `file'. This includes aliases and functions, if
and only if the -p flag is not also used.
an executable named `file'. This includes aliases, builtins, and
functions, if and only if the -p flag is not also used.
The -f flag suppresses shell function lookup.
The -P flag forces a PATH search for each NAME, even if it is an alias,
builtin, or function, and returns the name of the disk file that would
be executed.
$END
#include <config.h>
@ -82,6 +88,12 @@ extern char *this_command_name;
-a Returns all occurrences of words, whether they
be a filename in the path, alias, function,
or builtin.
-f Suppress shell function lookup, like `command'.
-P Force a path search even in the presence of other
definitions.
Order of evaluation:
alias
keyword
@ -94,72 +106,62 @@ int
type_builtin (list)
WORD_LIST *list;
{
int path_only, type_only, all, verbose;
int successful_finds, opt;
WORD_LIST *prev, *this;
int dflags, successful_finds, opt;
WORD_LIST *this;
if (list == 0)
return (EXECUTION_SUCCESS);
path_only = type_only = all = 0;
dflags = CDESC_SHORTDESC; /* default */
successful_finds = 0;
/* Handle the obsolescent `-type', `-path', and `-all' by prescanning
the arguments and removing those options from the list before calling
internal_getopt. Recognize `--type', `--path', and `--all' also.
THIS SHOULD REALLY GO AWAY. */
for (this = list; this && this->word->word[0] == '-'; )
the arguments and converting those options to the form that
internal_getopt recognizes. Converts `--type', `--path', and `--all'
also. THIS SHOULD REALLY GO AWAY. */
for (this = list; this && this->word->word[0] == '-'; this = this->next)
{
char *flag = &(this->word->word[1]);
if (STREQ (flag, "type") || STREQ (flag, "-type"))
{
type_only = 1;
path_only = 0;
this->word->word[1] = 't';
this->word->word[2] = '\0';
}
else if (STREQ (flag, "path") || STREQ (flag, "-path"))
{
path_only = 1;
type_only = 0;
this->word->word[1] = 'p';
this->word->word[2] = '\0';
}
else if (STREQ (flag, "all") || STREQ (flag, "-all"))
all = 1;
else
{
prev = this;
this = this->next;
continue;
}
/* We found a long option; remove it from the argument list. Don't
free it if it's the head of the argument list, though -- the
argument list will be freed by the caller. */
if (this == list)
this = list = list->next;
else
{
prev->next = this->next;
this->next = (WORD_LIST *)NULL;
dispose_words (this);
this = prev->next;
this->word->word[1] = 'a';
this->word->word[2] = '\0';
}
}
reset_internal_getopt ();
while ((opt = internal_getopt (list, "apt")) != -1)
while ((opt = internal_getopt (list, "afptP")) != -1)
{
switch (opt)
{
case 't':
type_only = 1;
path_only = 0;
case 'a':
dflags |= CDESC_ALL;
break;
case 'f':
dflags |= CDESC_NOFUNCS;
break;
case 'p':
path_only = 1;
type_only = 0;
dflags |= CDESC_PATH_ONLY;
dflags &= ~(CDESC_TYPE|CDESC_SHORTDESC);
break;
case 'a':
all = 1;
case 't':
dflags |= CDESC_TYPE;
dflags &= ~(CDESC_PATH_ONLY|CDESC_SHORTDESC);
break;
case 'P': /* shorthand for type -ap */
dflags |= (CDESC_PATH_ONLY|CDESC_FORCE_PATH);
dflags &= ~(CDESC_TYPE|CDESC_SHORTDESC);
break;
default:
builtin_usage ();
@ -168,23 +170,14 @@ type_builtin (list)
}
list = loptend;
if (type_only)
verbose = 1;
else if (path_only == 0)
verbose = 2;
else if (path_only)
verbose = 3;
else
verbose = 0;
while (list)
{
int found;
found = describe_command (list->word->word, verbose, all);
found = describe_command (list->word->word, dflags);
if (!found && !path_only && !type_only)
builtin_error ("%s: not found", list->word->word);
if (!found && (dflags & (CDESC_PATH_ONLY|CDESC_TYPE)) == 0)
sh_notfound (list->word->word);
successful_finds += found;
list = list->next;
@ -196,43 +189,45 @@ type_builtin (list)
}
/*
* Describe COMMAND as required by the type builtin.
* Describe COMMAND as required by the type and command builtins.
*
* If VERBOSE == 0, don't print anything
* If VERBOSE == 1, print short description as for `type -t'
* If VERBOSE == 2, print long description as for `type' and `command -V'
* If VERBOSE == 3, print path name only for disk files
* If VERBOSE == 4, print string used to invoke COMMAND, for `command -v'
* Behavior is controlled by DFLAGS. Flag values are
* CDESC_ALL print all descriptions of a command
* CDESC_SHORTDESC print the description for type and command -V
* CDESC_REUSABLE print in a format that may be reused as input
* CDESC_TYPE print the type for type -t
* CDESC_PATH_ONLY print the path for type -p
* CDESC_FORCE_PATH force a path search for type -P
* CDESC_NOFUNCS skip function lookup for type -f
*
* ALL says whether or not to look for all occurrences of COMMAND, or
* CDESC_ALL says whether or not to look for all occurrences of COMMAND, or
* return after finding it once.
*/
int
describe_command (command, verbose, all)
describe_command (command, dflags)
char *command;
int verbose, all;
int dflags;
{
int found, i, found_file, f;
int found, i, found_file, f, all;
char *full_path, *x;
SHELL_VAR *func;
#if defined (ALIAS)
alias_t *alias;
#endif
all = (dflags & CDESC_ALL) != 0;
found = found_file = 0;
full_path = (char *)NULL;
#if defined (ALIAS)
/* Command is an alias? */
alias = find_alias (command);
if (alias)
if (((dflags & CDESC_FORCE_PATH) == 0) && (alias = find_alias (command)))
{
if (verbose == 1)
if (dflags & CDESC_TYPE)
puts ("alias");
else if (verbose == 2)
else if (dflags & CDESC_SHORTDESC)
printf ("%s is aliased to `%s'\n", command, alias->value);
else if (verbose == 4)
else if (dflags & CDESC_REUSABLE)
{
x = sh_single_quote (alias->value);
printf ("alias %s=%s\n", command, x);
@ -247,14 +242,13 @@ describe_command (command, verbose, all)
#endif /* ALIAS */
/* Command is a shell reserved word? */
i = find_reserved_word (command);
if (i >= 0)
if (((dflags & CDESC_FORCE_PATH) == 0) && (i = find_reserved_word (command)) >= 0)
{
if (verbose == 1)
if (dflags & CDESC_TYPE)
puts ("keyword");
else if (verbose == 2)
else if (dflags & CDESC_SHORTDESC)
printf ("%s is a shell keyword\n", command);
else if (verbose == 4)
else if (dflags & CDESC_REUSABLE)
printf ("%s\n", command);
found = 1;
@ -264,13 +258,11 @@ describe_command (command, verbose, all)
}
/* Command is a function? */
func = find_function (command);
if (func)
if (((dflags & (CDESC_FORCE_PATH|CDESC_NOFUNCS)) == 0) && (func = find_function (command)))
{
if (verbose == 1)
if (dflags & CDESC_TYPE)
puts ("function");
else if (verbose == 2)
else if (dflags & CDESC_SHORTDESC)
{
#define PRETTY_PRINT_FUNC 1
char *result;
@ -285,7 +277,7 @@ describe_command (command, verbose, all)
printf ("%s\n", result);
#undef PRETTY_PRINT_FUNC
}
else if (verbose == 4)
else if (dflags & CDESC_REUSABLE)
printf ("%s\n", command);
found = 1;
@ -295,13 +287,13 @@ describe_command (command, verbose, all)
}
/* Command is a builtin? */
if (find_shell_builtin (command))
if (((dflags & CDESC_FORCE_PATH) == 0) && find_shell_builtin (command))
{
if (verbose == 1)
if (dflags & CDESC_TYPE)
puts ("builtin");
else if (verbose == 2)
else if (dflags & CDESC_SHORTDESC)
printf ("%s is a shell builtin\n", command);
else if (verbose == 4)
else if (dflags & CDESC_REUSABLE)
printf ("%s\n", command);
found = 1;
@ -318,11 +310,11 @@ describe_command (command, verbose, all)
f = file_status (command);
if (f & FS_EXECABLE)
{
if (verbose == 1)
if (dflags & CDESC_TYPE)
puts ("file");
else if (verbose == 2)
else if (dflags & CDESC_SHORTDESC)
printf ("%s is %s\n", command, command);
else if (verbose == 3 || verbose == 4)
else if (dflags & (CDESC_REUSABLE|CDESC_PATH_ONLY))
printf ("%s\n", command);
/* There's no use looking in the hash table or in $PATH,
@ -334,15 +326,15 @@ describe_command (command, verbose, all)
/* If the user isn't doing "-a", then we might care about
whether the file is present in our hash table. */
if (all == 0)
if (all == 0 || (dflags & CDESC_FORCE_PATH))
{
if ((full_path = find_hashed_filename (command)) != (char *)NULL)
if (full_path = phash_search (command))
{
if (verbose == 1)
if (dflags & CDESC_TYPE)
puts ("file");
else if (verbose == 2)
else if (dflags & CDESC_SHORTDESC)
printf ("%s is hashed (%s)\n", command, full_path);
else if (verbose == 3 || verbose == 4)
else if (dflags & (CDESC_REUSABLE|CDESC_PATH_ONLY))
printf ("%s\n", full_path);
free (full_path);
@ -376,18 +368,18 @@ describe_command (command, verbose, all)
if (all == 0)
break;
}
else if (verbose >= 2)
else if (dflags & (CDESC_REUSABLE|CDESC_PATH_ONLY|CDESC_SHORTDESC))
full_path = sh_makepath ((char *)NULL, full_path, MP_DOCWD);
}
found_file++;
found = 1;
if (verbose == 1)
if (dflags & CDESC_TYPE)
puts ("file");
else if (verbose == 2)
else if (dflags & CDESC_SHORTDESC)
printf ("%s is %s\n", command, full_path);
else if (verbose == 3 || verbose == 4)
else if (dflags & (CDESC_REUSABLE|CDESC_PATH_ONLY))
printf ("%s\n", full_path);
free (full_path);

49
builtins/ulimit.def
View file

@ -1,7 +1,7 @@
This file is ulimit.def, from which is created ulimit.c.
It implements the builtin "ulimit" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -327,7 +327,7 @@ ulimit_builtin (list)
{
if (STREQ (list->word->word, "unlimited") == 0)
{
builtin_error ("invalid limit argument: %s", list->word->word);
builtin_error ("%s: invalid limit argument", list->word->word);
return (EXECUTION_FAILURE);
}
return (set_all_limits (mode == 0 ? LIMIT_SOFT|LIMIT_HARD : mode, RLIM_INFINITY));
@ -353,7 +353,7 @@ ulimit_builtin (list)
limind = _findlim (cmdlist[c].cmd);
if (limind == -1)
{
builtin_error ("bad command: `%c'", cmdlist[c].cmd);
builtin_error ("`%c': bad command", cmdlist[c].cmd);
return (EX_USAGE);
}
}
@ -382,8 +382,8 @@ ulimit_internal (cmd, cmdarg, mode, multiple)
opt = get_limit (limind, &soft_limit, &hard_limit);
if (opt < 0)
{
builtin_error ("cannot get %s limit: %s", limits[limind].description,
strerror (errno));
builtin_error ("%s: cannot get limit: %s", limits[limind].description,
strerror (errno));
return (EXECUTION_FAILURE);
}
@ -408,20 +408,20 @@ ulimit_internal (cmd, cmdarg, mode, multiple)
if ((real_limit / block_factor) != limit)
{
builtin_error ("limit out of range: %s", cmdarg);
sh_erange (cmdarg, "limit");
return (EXECUTION_FAILURE);
}
}
else
{
builtin_error ("bad non-numeric arg `%s'", cmdarg);
sh_invalidnum (cmdarg);
return (EXECUTION_FAILURE);
}
if (set_limit (limind, real_limit, mode) < 0)
{
builtin_error ("cannot modify %s limit: %s", limits[limind].description,
strerror (errno));
builtin_error ("%s: cannot modify limit: %s", limits[limind].description,
strerror (errno));
return (EXECUTION_FAILURE);
}
@ -618,23 +618,19 @@ static int
getmaxuprc (valuep)
RLIMTYPE *valuep;
{
# if defined (HAVE_SYSCONF) && defined (_SC_CHILD_MAX)
long maxchild;
maxchild = sysconf (_SC_CHILD_MAX);
maxchild = getmaxchild ();
if (maxchild < 0)
return -1;
{
errno = EINVAL;
return -1;
}
else
*valuep = (RLIMTYPE) maxchild;
return 0;
# else /* !HAVE_SYSCONF || !_SC_CHILD_MAX */
# if defined (MAXUPRC)
*valuep = (RLIMTYPE) MAXUPRC;
return 0;
# else /* MAXUPRC */
errno = EINVAL;
return -1;
# endif /* !MAXUPRC */
# endif /* !HAVE_SYSCONF || !_SC_CHILD_MAX */
{
*valuep = (RLIMTYPE) maxchild;
return 0;
}
}
static void
@ -650,7 +646,8 @@ print_all_limits (mode)
for (i = 0; limits[i].option > 0; i++)
{
if (get_limit (i, &softlim, &hardlim) < 0)
builtin_error ("cannot get %s limit: %s", limits[i].description, strerror (errno));
builtin_error ("%s: cannot get limit: %s", limits[i].description,
strerror (errno));
else
printone (i, (mode & LIMIT_SOFT) ? softlim : hardlim, 1);
}
@ -716,8 +713,8 @@ set_all_limits (mode, newlim)
for (retval = i = 0; limits[i].option > 0; i++)
if (set_limit (i, newlim, mode) < 0)
{
builtin_error ("cannot modify %s limit: %s", limits[i].description,
strerror (errno));
builtin_error ("%s: cannot modify limit: %s", limits[i].description,
strerror (errno));
retval = 1;
}
return retval;

9
builtins/umask.def
View file

@ -1,7 +1,7 @@
This file is umask.def, from which is created umask.c.
It implements the builtin "umask" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -107,8 +107,7 @@ umask_builtin (list)
is lousy. */
if (umask_value == -1)
{
builtin_error ("`%s' is not an octal number from 000 to 777",
list->word->word);
sh_erange (list->word->word, "octal number");
return (EXECUTION_FAILURE);
}
}
@ -222,7 +221,7 @@ parse_symbolic_mode (mode, initial_bits)
case '=':
break;
default:
builtin_error ("bad symbolic mode operator: %c", op);
builtin_error ("`%c': invalid symbolic mode operator", op);
return (-1);
}
@ -275,7 +274,7 @@ parse_symbolic_mode (mode, initial_bits)
}
else
{
builtin_error ("bad character in symbolic mode: %c", *s);
builtin_error ("`%c': invalid symbolic mode character", *s);
return (-1);
}
}

18
builtins/wait.def
View file

@ -1,7 +1,7 @@
This file is wait.def, from which is created wait.c.
It implements the builtin "wait" in Bash.
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -60,6 +60,7 @@ $END
#include "bashgetopt.h"
extern int interrupt_immediately;
extern int wait_signal_received;
procenv_t wait_intr_buf;
@ -87,8 +88,7 @@ wait_builtin (list)
if (no_options (list))
return (EX_USAGE);
if (list != loptend)
list = loptend;
list = loptend;
old_interrupt_immediately = interrupt_immediately;
interrupt_immediately++;
@ -104,7 +104,7 @@ wait_builtin (list)
code = setjmp (wait_intr_buf);
if (code)
{
status = 128 + SIGINT;
status = 128 + wait_signal_received;
WAIT_RETURN (status);
}
@ -124,7 +124,7 @@ wait_builtin (list)
{
pid_t pid;
char *w;
long pid_value;
intmax_t pid_value;
w = list->word->word;
if (DIGIT (*w))
@ -136,7 +136,7 @@ wait_builtin (list)
}
else
{
builtin_error ("`%s' is not a pid or valid job spec", w);
sh_badpid (w);
WAIT_RETURN (EXECUTION_FAILURE);
}
}
@ -153,7 +153,7 @@ wait_builtin (list)
if (job < 0 || job >= job_slots || !jobs[job])
{
if (job != DUP_JOB)
builtin_error ("%s: no such job", list->word->word);
sh_badjob (list->word->word);
UNBLOCK_CHILD (oset);
status = 127; /* As per Posix.2, section 4.70.2 */
list = list->next;
@ -167,13 +167,13 @@ wait_builtin (list)
else if (job_control == 0 && *w == '%')
{
/* can't use jobspecs as arguments if job control is not active. */
builtin_error ("job control not enabled");
sh_nojobs ((char *)NULL);
status = EXECUTION_FAILURE;
}
#endif /* JOB_CONTROL */
else
{
builtin_error ("`%s' is not a pid or valid job spec", w);
sh_badpid (w);
status = EXECUTION_FAILURE;
}
list = list->next;

15
command.h
View file

@ -27,10 +27,11 @@
/* Instructions describing what kind of thing to do for a redirection. */
enum r_instruction {
r_output_direction, r_input_direction, r_inputa_direction,
r_appending_to, r_reading_until, r_duplicating_input,
r_duplicating_output, r_deblank_reading_until, r_close_this,
r_err_and_out, r_input_output, r_output_force,
r_duplicating_input_word, r_duplicating_output_word
r_appending_to, r_reading_until, r_reading_string,
r_duplicating_input, r_duplicating_output, r_deblank_reading_until,
r_close_this, r_err_and_out, r_input_output, r_output_force,
r_duplicating_input_word, r_duplicating_output_word,
r_move_input, r_move_output, r_move_input_word, r_move_output_word
};
/* Redirection errors. */
@ -55,6 +56,11 @@ enum r_instruction {
ri == r_appending_to || \
ri == r_output_force)
/* redirection needs translation */
#define TRANSLATE_REDIRECT(ri) \
(ri == r_duplicating_input_word || ri == r_duplicating_output_word || \
ri == r_move_input_word || ri == r_move_output_word)
/* Command Types: */
enum command_type { cm_for, cm_case, cm_while, cm_if, cm_simple, cm_select,
cm_connection, cm_function_def, cm_until, cm_group,
@ -68,6 +74,7 @@ enum command_type { cm_for, cm_case, cm_while, cm_if, cm_simple, cm_select,
#define W_NOSPLIT 0x10 /* Do not perform word splitting on this word. */
#define W_NOGLOB 0x20 /* Do not perform globbing on this word. */
#define W_NOSPLIT2 0x40 /* Don't split word except for $@ expansion. */
#define W_TILDEEXP 0x80 /* Tilde expand this assignment word */
/* Possible values for subshell_environment */
#define SUBSHELL_ASYNC 0x01 /* subshell caused by `command &' */

59
config-bot.h
View file

@ -1,6 +1,24 @@
/* config-bot.h */
/* modify settings or make new ones based on what autoconf tells us. */
/* Copyright (C) 1989-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#if !defined (HAVE_VPRINTF) && defined (HAVE_DOPRNT)
# define USE_VFPRINTF_EMULATION
# define HAVE_VPRINTF
@ -78,3 +96,44 @@
# undef PPROMPT
# define PPROMPT "$ "
#endif
/************************************************/
/* check multibyte capability for I18N code */
/************************************************/
/* For platforms which support the ISO C amendement 1 functionality we
support user defined character classes. */
/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
#if defined (HAVE_WCTYPE_H) && defined (HAVE_WCHAR_H)
# include <wchar.h>
# include <wctype.h>
# if defined (HAVE_MBSRTOWCS) /* system is supposed to support XPG5 */
# define HANDLE_MULTIBYTE 1
# endif
#endif
/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */
#if HANDLE_MULTIBYTE && !defined (HAVE_MBSTATE_T)
# define wcsrtombs(dest, src, len, ps) (wcsrtombs) (dest, src, len, 0)
# define mbsrtowcs(dest, src, len, ps) (mbsrtowcs) (dest, src, len, 0)
# define wcrtomb(s, wc, ps) (wcrtomb) (s, wc, 0)
# define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
# define mbrlen(s, n, ps) (mbrlen) (s, n, 0)
# define mbstate_t int
#endif
/* Make sure MB_LEN_MAX is at least 16 (some systems define
MB_LEN_MAX as 1) */
#ifdef HANDLE_MULTIBYTE
# include <limits.h>
# if defined(MB_LEN_MAX) && (MB_LEN_MAX < 16)
# undef MB_LEN_MAX
# endif
# if !defined (MB_LEN_MAX)
# define MB_LEN_MAX 16
# endif
#endif
/************************************************/
/* end of multibyte capability checks for I18N */
/************************************************/

24
config-top.h
View file

@ -3,6 +3,24 @@
/* This contains various user-settable options not under the control of
autoconf. */
/* Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
/* Define CONTINUE_AFTER_KILL_ERROR if you want the kill command to
continue processing arguments after one of them fails. This is
what POSIX.2 specifies. */
@ -48,6 +66,12 @@
#define PPROMPT "\\s-\\v\\$ "
#define SPROMPT "> "
/* Undefine this if you don't want the ksh-compatible behavior of reprinting
the select menu after a valid choice is made only if REPLY is set to NULL
in the body of the select command. The menu is always reprinted if the
reply to the select query is an empty line. */
#define KSH_COMPATIBLE_SELECT
/* System-wide .bashrc file for interactive shells. */
/* #define SYS_BASHRC "/etc/bash.bashrc" */

66
config.h.in
View file

@ -1,6 +1,6 @@
/* config.h -- Configuration file for bash. */
/* Copyright (C) 1987-2001 Free Software Foundation, Inc.
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -132,6 +132,10 @@
and the complete builtin. */
#undef PROGRAMMABLE_COMPLETION
/* Define MEMSCRAMBLE if you want the bash malloc and free to scramble
memory contents on malloc() and free(). */
#undef MEMSCRAMBLE
/* Define AFS if you are using Transarc's AFS. */
#undef AFS
@ -202,6 +206,8 @@
/* Define if using the bash version of malloc in lib/malloc/malloc.c */
#undef USING_BASH_MALLOC
#undef DISABLE_MALLOC_WRAPPERS
/* Define if using alloca.c. */
#undef C_ALLOCA
@ -321,6 +327,8 @@
#undef HAVE_TIMEVAL
#undef HAVE_TZNAME
/* Characteristics of some of the system structures. */
@ -336,6 +344,8 @@
#undef STRUCT_WINSIZE_IN_SYS_IOCTL
#undef TM_IN_SYS_TIME
#undef STRUCT_WINSIZE_IN_TERMIOS
#undef SPEED_T_IN_SYS_TYPES
@ -346,6 +356,9 @@
#undef HAVE_STRUCT_STAT_ST_BLOCKS
#undef HAVE_STRUCT_TM_TM_ZONE
#undef HAVE_TM_ZONE
/* Characteristics of definitions in the system header files. */
#undef HAVE_GETPW_DECLS
@ -354,16 +367,22 @@
#undef HAVE_LIBC_FNM_EXTMATCH
#undef HAVE_DECL_CONFSTR
#undef HAVE_DECL_STRTOLD
#undef HAVE_DECL_SBRK
#undef HAVE_DECL_PRINTF
#undef HAVE_DECL_SBRK
#undef HAVE_DECL_STRCPY
#undef HAVE_DECL_STRSIGNAL
#undef HAVE_DECL_STRTOLD
#undef HAVE_MBSTATE_T
/* These are checked with BASH_CHECK_DECL */
#undef HAVE_DECL_STRTOIMAX
@ -395,8 +414,15 @@
#undef CAN_REDEFINE_GETENV
#undef HAVE_STD_PUTENV
#undef HAVE_STD_UNSETENV
#undef HAVE_PRINTF_A_FORMAT
/* Define if you have <langinfo.h> and nl_langinfo(CODESET). */
#undef HAVE_LANGINFO_CODESET
/* Characteristics of properties exported by the kernel. */
/* Define if the kernel can exec files beginning with #! */
@ -496,6 +522,9 @@
/* Define if you have the getservbyname function. */
#undef HAVE_GETSERVBYNAME
/* Define if you have the getservent function. */
#undef HAVE_GETSERVENT
/* Define if you have the gettext function. */
#undef HAVE_GETTEXT
@ -517,6 +546,9 @@
/* Define if you have the isgraph function. */
#undef HAVE_ISGRAPH
/* Define if you have the isint function in libc */
#undef HAVE_ISINF_IN_LIBC
/* Define if you have the isprint function. */
#undef HAVE_ISPRINT
@ -532,9 +564,15 @@
/* Define if you have the lstat function. */
#undef HAVE_LSTAT
/* Define if you have the mbsrtowcs function. */
#undef HAVE_MBSRTOWCS
/* Define if you have the memmove function. */
#undef HAVE_MEMMOVE
/* Define if you have the memset function. */
#undef HAVE_MEMSET
/* Define if you have the mkfifo function. */
#undef HAVE_MKFIFO
@ -595,6 +633,9 @@
/* Define if you have the strerror function. */
#undef HAVE_STRERROR
/* Define if you have the strftime function. */
#undef HAVE_STRFTIME
/* Define if you have the strpbrk function. */
#undef HAVE_STRPBRK
@ -649,6 +690,9 @@
/* Define if you have the uname function. */
#undef HAVE_UNAME
/* Define if you have the unsetenv function. */
#undef HAVE_UNSETENV
/* Define if you have the vasprintf function. */
#undef HAVE_VASPRINTF
@ -664,6 +708,9 @@
/* Define if you have the wait3 function. */
#undef HAVE_WAIT3
/* Define if you have the wcwidth function. */
#undef HAVE_WCWIDTH
/* Presence of certain system include files. */
/* Define if you have the <arpa/inet.h> header file. */
@ -681,6 +728,9 @@
/* Define if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define if you have the <langinfo.h> header file. */
#undef HAVE_LANGINFO_H
/* Define if you have the <libintl.h> header file. */
#undef HAVE_LIBINTL_H
@ -776,6 +826,12 @@
/* Define if you have the <varargs.h> header file. */
#undef HAVE_VARARGS_H
/* Define if you have the <wchar.h> header file. */
#undef HAVE_WCHAR_H
/* Define if you have the <varargs.h> header file. */
#undef HAVE_WCTYPE_H
/* Presence of certain system libraries. */
#undef HAVE_LIBDL

6019
configure vendored
View file

File diff suppressed because it is too large Load diff

174
configure.in
View file

@ -5,7 +5,7 @@ dnl report bugs to chet@po.cwru.edu
dnl
dnl Process this file with autoconf to produce a configure script.
# Copyright (C) 1987-2001 Free Software Foundation, Inc.
# Copyright (C) 1987-2002 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@ -22,9 +22,9 @@ dnl Process this file with autoconf to produce a configure script.
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
AC_REVISION([for Bash 2.05a, version 2.128, from autoconf version] AC_ACVERSION)dnl
AC_REVISION([for Bash 2.05b, version 2.144, from autoconf version] AC_ACVERSION)dnl
AC_INIT(bash, 2.05a, bug-bash@gnu.org)
AC_INIT(bash, 2.05b, bug-bash@gnu.org)
dnl make sure we are using a recent autoconf version
AC_PREREQ(2.50)
@ -35,7 +35,14 @@ AC_CONFIG_AUX_DIR(./support)
AC_CONFIG_HEADERS(config.h)
dnl checks for version info
BASHVERS=2.05a
BASHVERS=2.05b
RELSTATUS=release
dnl defaults for debug settings
case "$RELSTATUS" in
alp*|bet*|dev*|rc*) DEBUG='-DDEBUG' MALLOC_DEBUG='-DMALLOC_DEBUG' ;;
*) DEBUG= MALLOC_DEBUG= ;;
esac
dnl canonicalize the host and os so we can do some tricky things before
dnl parsing options
@ -63,7 +70,7 @@ sparc-netbsd*) opt_bash_malloc=no ;; # needs 8-byte alignment
mips-irix6*) opt_bash_malloc=no ;; # needs 8-byte alignment
m68k-sysv) opt_bash_malloc=no ;; # fixes file descriptor leak in closedir
sparc-linux*) opt_bash_malloc=no ;; # sparc running linux; requires ELF
#*-freebsd*) opt_bash_malloc=no ;; # they claim it's better
#*-freebsd*) opt_bash_malloc=no ;; # they claim it's better; I disagree
*-openbsd*) opt_bash_malloc=no ;; # they claim it needs eight-bit alignment
*-aix*) opt_bash_malloc=no ;; # AIX machines
*-nextstep*) opt_bash_malloc=no ;; # NeXT machines running NeXTstep
@ -79,15 +86,21 @@ sparc-linux*) opt_bash_malloc=no ;; # sparc running linux; requires ELF
*-opennt*|*-interix*) opt_bash_malloc=no ;; # Interix, now owned by Microsoft
esac
# memory scrambling on free()
case "${host_os}" in
sco3.2v5*|sco3.2v4*) opt_memscramble=no ;;
*) opt_memscramble=yes ;;
esac
dnl arguments to configure
dnl packages
AC_ARG_WITH(afs, --with-afs if you are running AFS, opt_afs=$withval)
AC_ARG_WITH(bash-malloc, --with-bash-malloc use the Bash version of malloc,opt_bash_malloc=$withval)
AC_ARG_WITH(curses, --with-curses use the curses library instead of the termcap library,opt_curses=$withval)
AC_ARG_WITH(gnu-malloc, --with-gnu-malloc synonym for --with-bash-malloc,opt_bash_malloc=$withval)
AC_ARG_WITH(installed-readline, --with-installed-readline use a version of the readline library that is already installed, opt_with_installed_readline=$withval)
AC_ARG_WITH(purecov, --with-purecov configure to postprocess with pure coverage, opt_purecov=$withval)
AC_ARG_WITH(purify, --with-purify configure to postprocess with purify, opt_purify=$withval)
AC_ARG_WITH(afs, AC_HELP_STRING([--with-afs], [if you are running AFS]), opt_afs=$withval)
AC_ARG_WITH(bash-malloc, AC_HELP_STRING([--with-bash-malloc], [use the Bash version of malloc]), opt_bash_malloc=$withval)
AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
AC_ARG_WITH(gnu-malloc, AC_HELP_STRING([--with-gnu-malloc], [synonym for --with-bash-malloc]), opt_bash_malloc=$withval)
AC_ARG_WITH(installed-readline, AC_HELP_STRING([--with-installed-readline], [use a version of the readline library that is already installed]), opt_with_installed_readline=$withval)
AC_ARG_WITH(purecov, AC_HELP_STRING([--with-purecov], [configure to postprocess with pure coverage]), opt_purecov=$withval)
AC_ARG_WITH(purify, AC_HELP_STRING([--with-purify], [configure to postprocess with purify]), opt_purify=$withval)
if test "$opt_bash_malloc" = yes; then
MALLOC_TARGET=malloc
@ -108,6 +121,7 @@ fi
if test "$opt_purify" = yes; then
PURIFY="purify "
AC_DEFINE(DISABLE_MALLOC_WRAPPERS)
else
PURIFY=
fi
@ -149,14 +163,14 @@ opt_cond_command=yes
opt_arith_for_command=yes
opt_net_redirs=yes
opt_progcomp=yes
opt_largefile=yes
opt_separate_help=no
dnl options that affect how bash is compiled and linked
opt_static_link=no
opt_profiling=no
dnl argument parsing for optional features
AC_ARG_ENABLE(minimal-config, --enable-minimal-config a minimal sh-like configuration, opt_minimal_config=$enableval)
AC_ARG_ENABLE(minimal-config, AC_HELP_STRING([--enable-minimal-config], [a minimal sh-like configuration]), opt_minimal_config=$enableval)
dnl a minimal configuration turns everything off, but features can be
dnl added individually
@ -167,37 +181,38 @@ if test $opt_minimal_config = yes; then
opt_select=no opt_help=no opt_array_variables=no opt_dparen_arith=no
opt_brace_expansion=no opt_disabled_builtins=no opt_command_timing=no
opt_extended_glob=no opt_cond_command=no opt_arith_for_command=no
opt_net_redirs=no opt_progcomp=no
opt_net_redirs=no opt_progcomp=no opt_separate_help=no
fi
AC_ARG_ENABLE(alias, --enable-alias enable shell aliases, opt_alias=$enableval)
AC_ARG_ENABLE(arith-for-command, --enable-arith-for-command enable arithmetic for command, opt_arith_for_command=$enableval)
AC_ARG_ENABLE(array-variables, --enable-array-variables include shell array variables, opt_array_variables=$enableval)
AC_ARG_ENABLE(bang-history, --enable-bang-history turn on csh-style history substitution, opt_bang_history=$enableval)
AC_ARG_ENABLE(brace-expansion, --enable-brace-expansion include brace expansion, opt_brace_expansion=$enableval)
AC_ARG_ENABLE(command-timing, --enable-command-timing enable the time reserved word and command timing, opt_command_timing=$enableval)
AC_ARG_ENABLE(cond-command, --enable-cond-command enable the conditional command, opt_cond_command=$enableval)
AC_ARG_ENABLE(directory-stack, --enable-directory-stack enable builtins pushd/popd/dirs, opt_dirstack=$enableval)
AC_ARG_ENABLE(disabled-builtins, --enable-disabled-builtins allow disabled builtins to still be invoked, opt_disabled_builtins=$enableval)
AC_ARG_ENABLE(dparen-arithmetic, [--enable-dparen-arithmetic include ((...)) command], opt_dparen_arith=$enableval)
AC_ARG_ENABLE(extended-glob, --enable-extended-glob include ksh-style extended pattern matching, opt_extended_glob=$enableval)
AC_ARG_ENABLE(help-builtin, --enable-help-builtin include the help builtin, opt_help=$enableval)
AC_ARG_ENABLE(history, --enable-history turn on command history, opt_history=$enableval)
AC_ARG_ENABLE(job-control, --enable-job-control enable job control features, opt_job_control=$enableval)
AC_ARG_ENABLE(largefile, --enable-largefile enable support for large files, opt_largefile=$enableval)
AC_ARG_ENABLE(net-redirections, --enable-net-redirections enable /dev/tcp/host/port redirection, opt_net_redirs=$enableval)
AC_ARG_ENABLE(process-substitution, --enable-process-substitution enable process substitution, opt_process_subst=$enableval)
AC_ARG_ENABLE(progcomp, --enable-progcomp enable programmable completion and the complete builtin, opt_progcomp=$enableval)
AC_ARG_ENABLE(prompt-string-decoding, --enable-prompt-string-decoding turn on escape character decoding in prompts, opt_prompt_decoding=$enableval)
AC_ARG_ENABLE(readline, --enable-readline turn on command line editing, opt_readline=$enableval)
AC_ARG_ENABLE(restricted, --enable-restricted enable a restricted shell, opt_restricted=$enableval)
AC_ARG_ENABLE(select, --enable-select include select command, opt_select=$enableval)
AC_ARG_ENABLE(usg-echo-default, --enable-usg-echo-default a synonym for --enable-xpg-echo-default, opt_xpg_echo=$enableval)
AC_ARG_ENABLE(xpg-echo-default, --enable-xpg-echo-default make the echo builtin expand escape sequences by default, opt_xpg_echo=$enableval)
AC_ARG_ENABLE(alias, AC_HELP_STRING([--enable-alias], [enable shell aliases]), opt_alias=$enableval)
AC_ARG_ENABLE(arith-for-command, AC_HELP_STRING([--enable-arith-for-command], [enable arithmetic for command]), opt_arith_for_command=$enableval)
AC_ARG_ENABLE(array-variables, AC_HELP_STRING([--enable-array-variables], [include shell array variables]), opt_array_variables=$enableval)
AC_ARG_ENABLE(bang-history, AC_HELP_STRING([--enable-bang-history], [turn on csh-style history substitution]), opt_bang_history=$enableval)
AC_ARG_ENABLE(brace-expansion, AC_HELP_STRING([--enable-brace-expansion], [include brace expansion]), opt_brace_expansion=$enableval)
AC_ARG_ENABLE(command-timing, AC_HELP_STRING([--enable-command-timing], [enable the time reserved word and command timing]), opt_command_timing=$enableval)
AC_ARG_ENABLE(cond-command, AC_HELP_STRING([--enable-cond-command], [enable the conditional command]), opt_cond_command=$enableval)
AC_ARG_ENABLE(directory-stack, AC_HELP_STRING([--enable-directory-stack], [enable builtins pushd/popd/dirs]), opt_dirstack=$enableval)
AC_ARG_ENABLE(disabled-builtins, AC_HELP_STRING([--enable-disabled-builtins], [allow disabled builtins to still be invoked]), opt_disabled_builtins=$enableval)
AC_ARG_ENABLE(dparen-arithmetic, AC_HELP_STRING([--enable-dparen-arithmetic], [include ((...)) command]), opt_dparen_arith=$enableval)
AC_ARG_ENABLE(extended-glob, AC_HELP_STRING([--enable-extended-glob], [include ksh-style extended pattern matching]), opt_extended_glob=$enableval)
AC_ARG_ENABLE(help-builtin, AC_HELP_STRING([--enable-help-builtin], [include the help builtin]), opt_help=$enableval)
AC_ARG_ENABLE(history, AC_HELP_STRING([--enable-history], [turn on command history]), opt_history=$enableval)
AC_ARG_ENABLE(job-control, AC_HELP_STRING([--enable-job-control], [enable job control features]), opt_job_control=$enableval)
AC_ARG_ENABLE(net-redirections, AC_HELP_STRING([--enable-net-redirections], [enable /dev/tcp/host/port redirection]), opt_net_redirs=$enableval)
AC_ARG_ENABLE(process-substitution, AC_HELP_STRING([--enable-process-substitution], [enable process substitution]), opt_process_subst=$enableval)
AC_ARG_ENABLE(progcomp, AC_HELP_STRING([--enable-progcomp], [enable programmable completion and the complete builtin]), opt_progcomp=$enableval)
AC_ARG_ENABLE(prompt-string-decoding, AC_HELP_STRING([--enable-prompt-string-decoding], [turn on escape character decoding in prompts]), opt_prompt_decoding=$enableval)
AC_ARG_ENABLE(readline, AC_HELP_STRING([--enable-readline], [turn on command line editing]), opt_readline=$enableval)
AC_ARG_ENABLE(restricted, AC_HELP_STRING([--enable-restricted], [enable a restricted shell]), opt_restricted=$enableval)
AC_ARG_ENABLE(select, AC_HELP_STRING([--enable-select], [include select command]), opt_select=$enableval)
AC_ARG_ENABLE(separate-helpfiles, AC_HELP_STRING([--enable-separate-helpfiles], [use external files for help builtin documentation]), opt_separate_help=$enableval)
AC_ARG_ENABLE(usg-echo-default, AC_HELP_STRING([--enable-usg-echo-default], [a synonym for --enable-xpg-echo-default]), opt_xpg_echo=$enableval)
AC_ARG_ENABLE(xpg-echo-default, AC_HELP_STRING([--enable-xpg-echo-default], [make the echo builtin expand escape sequences by default]), opt_xpg_echo=$enableval)
dnl options that alter how bash is compiled and linked
AC_ARG_ENABLE(profiling, --enable-profiling allow profiling with gprof, opt_profiling=$enableval)
AC_ARG_ENABLE(static-link, --enable-static-link [link bash statically, for use as a root shell], opt_static_link=$enableval)
AC_ARG_ENABLE(mem-scramble, AC_HELP_STRING([--enable-mem-scramble], [scramble memory on calls to malloc and free]), opt_memscramble=$enableval)
AC_ARG_ENABLE(profiling, AC_HELP_STRING([--enable-profiling], [allow profiling with gprof]), opt_profiling=$enableval)
AC_ARG_ENABLE(static-link, AC_HELP_STRING([--enable-static-link], [link bash statically, for use as a root shell]), opt_static_link=$enableval)
dnl opt_job_control is handled later, after BASH_JOB_CONTROL_MISSING runs
@ -260,12 +275,27 @@ if test $opt_progcomp = yes; then
AC_DEFINE(PROGRAMMABLE_COMPLETION)
fi
if test $opt_memscramble = yes; then
AC_DEFINE(MEMSCRAMBLE)
fi
if test "$opt_minimal_config" = yes; then
TESTSCRIPT=run-minimal
else
TESTSCRIPT=run-all
fi
HELPDIR= HELPDIRDEFINE= HELPINSTALL=
if test "$opt_separate_help" != no; then
if test "$opt_separate_help" = "yes" ; then
HELPDIR='${datadir}/bash'
else
HELPDIR=$opt_separate_help
fi
HELPDIRDEFINE='-H ${HELPDIR}'
HELPINSTALL='install-help'
fi
dnl now substitute in the values generated by arguments
AC_SUBST(TESTSCRIPT)
AC_SUBST(PURIFY)
@ -279,8 +309,12 @@ AC_SUBST(MALLOC_DEP)
AC_SUBST(htmldir)
AC_SUBST(HELPDIR)
AC_SUBST(HELPDIRDEFINE)
AC_SUBST(HELPINSTALL)
echo ""
echo "Beginning configuration for bash-$BASHVERS for ${host_cpu}-${host_vendor}-${host_os}"
echo "Beginning configuration for bash-$BASHVERS-$RELSTATUS for ${host_cpu}-${host_vendor}-${host_os}"
echo ""
dnl compilation checks
@ -355,6 +389,7 @@ if test "$opt_profiling" = "yes"; then
solaris2*) ;;
*) opt_static_link=yes ;;
esac
DEBUG= MALLOC_DEBUG=
fi
if test "$opt_static_link" = yes; then
@ -368,11 +403,18 @@ if test "$opt_static_link" = yes; then
fi
fi
test -z "$CPPFLAGS_FOR_BUILD" && CPPFLAGS_FOR_BUILD="$CPPFLAGS"
test -z "$CFLAGS_FOR_BUILD" && CFLAGS_FOR_BUILD="-g"
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(STATIC_LD)
AC_SUBST(CFLAGS_FOR_BUILD)
AC_SUBST(CPPFLAGS_FOR_BUILD)
AC_SUBST(LDFLAGS_FOR_BUILD)
AC_PROG_GCC_TRADITIONAL
dnl BEGIN READLINE and HISTORY LIBRARY SECTION
@ -381,7 +423,6 @@ dnl prepare to allow bash to be linked against an already-installed readline
dnl first test that the readline version is new enough to link bash against
if test "$opt_readline" = yes && test "$opt_with_installed_readline" != "no"
then
echo opt_with_installed_readline = $opt_with_installed_readline
# If the user specified --with-installed-readline=PREFIX and PREFIX
# is not `yes', set ac_cv_rl_prefix to PREFIX
test $opt_with_installed_readline != "yes" && ac_cv_rl_prefix=$opt_with_installed_readline
@ -389,7 +430,7 @@ echo opt_with_installed_readline = $opt_with_installed_readline
RL_LIB_READLINE_VERSION
case "$ac_cv_rl_version" in
4.[[2-9]]*|5*|6*|7*|8*|9*) ;;
4.[[3-9]]*|5*|6*|7*|8*|9*) ;;
*) opt_with_installed_readline=no
AC_MSG_WARN(installed readline library is too old to be linked with bash)
AC_MSG_WARN(using private bash version)
@ -530,6 +571,7 @@ AC_TYPE_SIGNAL
dnl checks for certain version-specific system calls and libc functions
AC_CHECK_FUNC(__setostype, AC_DEFINE(HAVE_SETOSTYPE))
AC_CHECK_FUNC(wait3, AC_DEFINE(HAVE_WAIT3))
AC_CHECK_FUNC(isinf, AC_DEFINE(HAVE_ISINF_IN_LIBC))
dnl checks for missing libc functions
AC_CHECK_FUNC(mkfifo,AC_DEFINE(HAVE_MKFIFO),AC_DEFINE(MKFIFO_MISSING))
@ -542,20 +584,21 @@ AC_CHECK_FUNCS(dup2 select getdtablesize getgroups gethostname \
AC_REPLACE_FUNCS(rename)
dnl checks for c library functions
AC_CHECK_FUNCS(bcopy bzero confstr sysconf pathconf setenv putenv \
AC_CHECK_FUNCS(bcopy bzero confstr sysconf pathconf setenv putenv unsetenv \
setlinebuf setvbuf setlocale strchr tcgetattr uname \
ulimit tzset siginterrupt memmove ttyname times \
getaddrinfo gethostbyname getservbyname inet_aton \
getaddrinfo gethostbyname getservbyname getservent inet_aton \
vsnprintf snprintf vasprintf asprintf fnmatch)
AC_CHECK_FUNCS(isascii isblank isgraph isprint isspace isxdigit)
AC_REPLACE_FUNCS(getcwd strcasecmp strerror strpbrk strtod)
AC_REPLACE_FUNCS(strtol strtoul strtoll strtoull strtoimax strtoumax)
AC_REPLACE_FUNCS(getcwd strcasecmp strerror strftime strpbrk memset)
AC_REPLACE_FUNCS(strtod strtol strtoul strtoll strtoull strtoimax strtoumax)
AC_CHECK_DECLS([strtold])
AC_CHECK_DECLS([confstr])
AC_CHECK_DECLS([sbrk])
AC_CHECK_DECLS([printf])
AC_CHECK_DECLS([sbrk])
AC_CHECK_DECLS([strcpy])
AC_CHECK_DECLS([strsignal])
AC_CHECK_DECLS([strtold])
BASH_CHECK_DECL(strtoimax)
BASH_CHECK_DECL(strtol)
@ -564,6 +607,8 @@ BASH_CHECK_DECL(strtoul)
BASH_CHECK_DECL(strtoull)
BASH_CHECK_DECL(strtoumax)
AC_FUNC_MKTIME
dnl checks for locale functions
AC_CHECK_HEADERS(libintl.h)
AC_CHECK_FUNCS(gettext textdomain bindtextdomain)
@ -577,6 +622,8 @@ if test "$ac_cv_func_bindtextdomain" = "no"; then
fi
fi
BASH_CHECK_MULTIBYTE
dnl checks for the dynamic loading library functions in libc and libdl
if test "$opt_static_link" != yes; then
AC_CHECK_LIB(dl, dlopen)
@ -684,18 +731,34 @@ BASH_STRUCT_DIRENT_D_FILENO
BASH_STRUCT_WINSIZE
BASH_STRUCT_TIMEVAL
AC_CHECK_MEMBERS([struct stat.st_blocks])
AC_STRUCT_TM
AC_STRUCT_TIMEZONE
dnl presence and behavior of C library functions
BASH_FUNC_STRSIGNAL
BASH_FUNC_OPENDIR_CHECK
BASH_FUNC_ULIMIT_MAXFDS
BASH_FUNC_GETENV
if test "$ac_func_getcwd" = "yes"; then
if test "$ac_cv_func_getcwd" = "yes"; then
BASH_FUNC_GETCWD
fi
BASH_FUNC_POSIX_SETJMP
BASH_FUNC_STRCOLL
dnl If putenv or unsetenv is not present, set the right define so the
dnl prototype and declaration in lib/sh/getenv.c will be standard-conformant
if test "$ac_cv_func_putenv" = "yes"; then
BASH_FUNC_STD_PUTENV
else
AC_DEFINE(HAVE_STD_PUTENV)
fi
if test "$ac_cv_func_unsetenv" = "yes"; then
BASH_FUNC_STD_UNSETENV
else
AC_DEFINE(HAVE_STD_UNSETENV)
fi
dnl I have removed this check. The existing libc FNM_EXTMATCH implementation
dnl (glibc-2.2.4) disagrees with bash on the matching of incorrectly-formed
dnl patterns (bash treats them as strings or characters to be matched without
@ -779,14 +842,14 @@ dgux*) LOCAL_CFLAGS=-D_DGUX_SOURCE; LOCAL_LIBS=-ldgc ;;
isc*) LOCAL_CFLAGS=-Disc386 ;;
rhapsody*) LOCAL_CFLAGS=-DRHAPSODY ;;
darwin*) LOCAL_CFLAGS=-DMACOSX ;;
sco3.2v5*) LOCAL_CFLAGS="-b elf -DWAITPID_BROKEN -DNO_MEMSCRAMBLE -DPATH_MAX=1024" ;;
sco3.2v4*) LOCAL_CFLAGS="-DMUST_UNBLOCK_CHLD -DNO_MEMSCRAMBLE -DPATH_MAX=1024" ;;
sco3.2v5*) LOCAL_CFLAGS="-b elf -DWAITPID_BROKEN -DPATH_MAX=1024" ;;
sco3.2v4*) LOCAL_CFLAGS="-DMUST_UNBLOCK_CHLD -DPATH_MAX=1024" ;;
sco3.2*) LOCAL_CFLAGS=-DMUST_UNBLOCK_CHLD ;;
sunos4*) LOCAL_CFLAGS=-DSunOS4 ;;
solaris2.5*) LOCAL_CFLAGS=-DSunOS5 ;;
lynxos*) LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
linux*) LOCAL_LDFLAGS=-rdynamic ;; # allow dynamic loading
*qnx*) LOCAL_CFLAGS="-Dqnx -F -3s" LOCAL_LDFLAGS="-3s -lunix -lncurses" ;;
*qnx*) LOCAL_CFLAGS="-Dqnx -F -3s" LOCAL_LDFLAGS="-3s" LOCAL_LIBS="-lunix -lncurses" ;;
powerux*) LOCAL_LIBS="-lgen" ;;
cygwin*) LOCAL_LIBS="-luser32" ;;
opennt*|interix*) LOCAL_CFLAGS="-DNO_MAIN_ENV_ARG -DBROKEN_DIRENT_D_INO" ;;
@ -866,6 +929,9 @@ AC_SUBST(AR)
AC_SUBST(ARFLAGS)
AC_SUBST(BASHVERS)
AC_SUBST(RELSTATUS)
AC_SUBST(DEBUG)
AC_SUBST(MALLOC_DEBUG)
AC_SUBST(host_cpu)
AC_SUBST(host_vendor)

26
copy_cmd.c
View file

@ -58,13 +58,8 @@ copy_word (w)
{
WORD_DESC *new_word;
new_word = (WORD_DESC *)xmalloc (sizeof (WORD_DESC));
#if 1
new_word = make_bare_word (w->word);
new_word->flags = w->flags;
#else
FASTCOPY ((char *)w, (char *)new_word, sizeof (WORD_DESC));
#endif
new_word->word = savestring (w->word);
return (new_word);
}
@ -74,15 +69,11 @@ WORD_LIST *
copy_word_list (list)
WORD_LIST *list;
{
WORD_LIST *new_list, *temp;
WORD_LIST *new_list;
for (new_list = (WORD_LIST *)NULL; list; list = list->next)
{
temp = (WORD_LIST *)xmalloc (sizeof (WORD_LIST));
temp->next = new_list;
new_list = temp;
new_list->word = copy_word (list->word);
}
new_list = make_word_list (copy_word (list->word), new_list);
return (REVERSE_LIST (new_list, WORD_LIST *));
}
@ -128,6 +119,7 @@ copy_redirect (redirect)
case r_deblank_reading_until:
new_redirect->here_doc_eof = savestring (redirect->here_doc_eof);
/*FALLTHROUGH*/
case r_reading_string:
case r_appending_to:
case r_output_direction:
case r_input_direction:
@ -137,10 +129,14 @@ copy_redirect (redirect)
case r_output_force:
case r_duplicating_input_word:
case r_duplicating_output_word:
case r_move_input_word:
case r_move_output_word:
new_redirect->redirectee.filename = copy_word (redirect->redirectee.filename);
break;
case r_duplicating_input:
case r_duplicating_output:
case r_move_input:
case r_move_output:
case r_close_this:
break;
}
@ -253,7 +249,7 @@ copy_if_command (com)
new_if->flags = com->flags;
new_if->test = copy_command (com->test);
new_if->true_case = copy_command (com->true_case);
new_if->false_case = copy_command (com->false_case);
new_if->false_case = com->false_case ? copy_command (com->false_case) : com->false_case;
return (new_if);
}
@ -301,7 +297,7 @@ copy_simple_command (com)
new_simple = (SIMPLE_COM *)xmalloc (sizeof (SIMPLE_COM));
new_simple->flags = com->flags;
new_simple->words = copy_word_list (com->words);
new_simple->redirects = copy_redirects (com->redirects);
new_simple->redirects = com->redirects ? copy_redirects (com->redirects) : (REDIRECT *)NULL;
new_simple->line = com->line;
return (new_simple);
}

13
dispose_cmd.c
View file

@ -29,6 +29,8 @@
#include "bashansi.h"
#include "shell.h"
extern sh_obj_cache_t wdcache, wlcache;
/* Dispose of the command structure passed. */
void
dispose_command (command)
@ -222,7 +224,11 @@ dispose_word (w)
WORD_DESC *w;
{
FREE (w->word);
#if 0
free (w);
#else
ocache_free (wdcache, WORD_DESC, w);
#endif
}
/* How to get rid of a linked list of words. A WORD_LIST. */
@ -237,7 +243,11 @@ dispose_words (list)
t = list;
list = list->next;
dispose_word (t->word);
#if 0
free (t);
#else
ocache_free (wlcache, WORD_LIST, t);
#endif
}
}
@ -277,6 +287,7 @@ dispose_redirects (list)
case r_deblank_reading_until:
free (t->here_doc_eof);
/*FALLTHROUGH*/
case r_reading_string:
case r_output_direction:
case r_input_direction:
case r_inputa_direction:
@ -286,6 +297,8 @@ dispose_redirects (list)
case r_output_force:
case r_duplicating_input_word:
case r_duplicating_output_word:
case r_move_input_word:
case r_move_output_word:
dispose_word (t->redirectee.filename);
/* FALLTHROUGH */
default:

178
doc/FAQ
View file

@ -1,4 +1,4 @@
This is the Bash FAQ, version 3.17, for Bash version 2.05a.
This is the Bash FAQ, version 3.20, for Bash version 2.05b.
This document contains a set of frequently-asked questions concerning
Bash, the GNU Bourne-Again Shell. Bash is a freely-available command
@ -36,8 +36,8 @@ A10) What is the bash `posix mode'?
Section B: The latest version
B1) What's new in version 2.05a?
B2) Are there any user-visible incompatibilities between bash-2.05a and
B1) What's new in version 2.05b?
B2) Are there any user-visible incompatibilities between bash-2.05b and
bash-1.14.7?
Section C: Differences from other Unix shells
@ -74,6 +74,7 @@ E7) What about empty for loops in Makefiles?
E8) Why does the arithmetic evaluation code complain about `08'?
E9) Why does the pattern matching expression [A-Z]* match files beginning
with every letter except `z'?
E10) Why does `cd //' leave $PWD as `//'?
Section F: Things to watch out for on certain Unix versions
@ -86,6 +87,8 @@ F4) I'm running SVR4.2. Why is the line erased every time I type `@'?
F5) Why does bash report syntax errors when my C News scripts use a
redirection before a subshell command?
F6) Why can't I use vi-mode editing on Red Hat Linux 6.1?
F7) Why do bash-2.05a and bash-2.05b fail to compile `printf.def' on
HP/UX 11.x?
Section G: How can I get bash to do certain common things?
@ -134,23 +137,23 @@ of Case Western Reserve University.
A2) What's the latest version?
The latest version is 2.05a, first made available on Thursday, 15
November, 2001.
The latest version is 2.05b, first made available on Wednesday, 17
July, 2002.
A3) Where can I get it?
Bash is the GNU project's shell, and so is available from the
master GNU archive site, ftp.gnu.org, and its mirrors. The
latest version is also available for FTP from ftp.cwru.edu.
The following URLs tell how to get version 2.05a:
The following URLs tell how to get version 2.05b:
ftp://ftp.gnu.org/pub/gnu/bash/bash-2.05a.tar.gz
ftp://ftp.cwru.edu/pub/bash/bash-2.05a.tar.gz
ftp://ftp.gnu.org/pub/gnu/bash/bash-2.05b.tar.gz
ftp://ftp.cwru.edu/pub/bash/bash-2.05b.tar.gz
Formatted versions of the documentation are available with the URLs:
ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-2.05a.tar.gz
ftp://ftp.cwru.edu/pub/bash/bash-doc-2.05a.tar.gz
ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-2.05b.tar.gz
ftp://ftp.cwru.edu/pub/bash/bash-doc-2.05b.tar.gz
A4) On what machines will bash run?
@ -187,7 +190,7 @@ early GNU-Win32 (the original name) releases. Cygnus has also done a
port of bash-2.05 to the CYGWIN environment, and it is available as
part of their current release.
Bash-2.05a should require no local Cygnus changes to build and run under
Bash-2.05b should require no local Cygnus changes to build and run under
CYGWIN.
The Cygnus port works only on Intel machines. There is a port of bash
@ -363,6 +366,10 @@ available on the web at
http://www.opengroup.org/onlinepubs/007908799/
The Single Unix Specification, version 3, is available on the web at
http://www.opengroup.org/onlinepubs/007904975/
A10) What is the bash `posix mode'?
Although bash is an implementation of the POSIX.2 shell
@ -370,29 +377,61 @@ specification, there are areas where the bash default behavior
differs from that spec. The bash `posix mode' changes the bash
behavior in these areas so that it obeys the spec more closely.
Posix mode is entered by starting bash with the --posix option or
executing `set -o posix' after bash is running.
Posix mode is entered by starting bash with the --posix or
'-o posix' option or executing `set -o posix' after bash is running.
The specific aspects of bash which change when posix mode is
active are listed in the file CWRU/POSIX.NOTES in the bash
distribution. They are also listed in a section in the Bash
Reference Manual.
active are listed in the file POSIX in the bash distribution.
They are also listed in a section in the Bash Reference Manual
(from which that file is generated).
Section B: The latest version
B1) What's new in version 2.05a?
B1) What's new in version 2.05b?
The raison d'etre for bash-2.05a is to make an intermediate release
containing principally bug fixes (some very good work was done and
contributed after bash-2.05 was released) available before I start to
work on the major new features to be available in the next release
(bash-2.06 or bash-3.0 or whatever I tag it). As such, there are
only a few relatively minor new features.
The raison d'etre for bash-2.05b is to make a second intermediate
release containing the first of the new features to be available
in bash-3.0 and get feedback on those features before proceeding.
The major new feature is multibyte character support in both Bash
and Readline.
Bash-2.05a contains the following new features (see the manual page for
complete descriptions and the CHANGES and NEWS files in the bash-2.05a
Bash-2.05b contains the following new features (see the manual page for
complete descriptions and the CHANGES and NEWS files in the bash-2.05b
distribution):
o support for multibyte characters has been added to both bash and readline
o the DEBUG trap is now run *before* simple commands, ((...)) commands,
[[...]] conditional commands, and for ((...)) loops
o the shell now performs arithmetic in the largest integer size the machine
supports (intmax_t)
o there is a new \D{...} prompt expansion; passes the `...' to strftime(3)
and inserts the result into the expanded prompt
o there is a new `here-string' redirection operator: <<< word
o when displaying variables, function attributes and definitions are shown
separately, allowing them to be re-used as input (attempting to re-use
the old output would result in syntax errors).
o `read' has a new `-u fd' option to read from a specified file descriptor
o the bash debugger in examples/bashdb has been modified to work with the
new DEBUG trap semantics, the command set has been made more gdb-like,
and the changes to $LINENO make debugging functions work better
o the expansion of $LINENO inside a shell function is only relative to the
function start if the shell is interactive -- if the shell is running a
script, $LINENO expands to the line number in the script. This is as
POSIX-2001 requires
A short feature history dating from Bash-2.0:
Bash-2.05a introduced the following new features:
o The `printf' builtin has undergone major work
o There is a new read-only `shopt' option: login_shell, which is set by
@ -418,8 +457,6 @@ o Readline can be configured to place the user at the same point on the line
o Readline can be configured to skip `hidden' files (filenames with a leading
`.' on Unix) when performing completion
A short feature history dating from bash-2.0:
Bash-2.05 introduced the following new features:
o This version has once again reverted to using locales and strcoll(3) when
@ -570,13 +607,13 @@ grammar tighter and smaller (66 reduce-reduce conflicts gone)
lots of code now smaller and faster
test suite greatly expanded
B2) Are there any user-visible incompatibilities between bash-2.05a and
B2) Are there any user-visible incompatibilities between bash-2.05b and
bash-1.14.7?
There are a few incompatibilities between version 1.14.7 and version 2.05a.
They are detailed in the file COMPAT in the bash-2.05a distribution. That
file is not meant to be all-encompassing; send mail to bash-maintainers@gnu.org
if you find something that's not mentioned there.
There are a few incompatibilities between version 1.14.7 and version 2.05b.
They are detailed in the file COMPAT in the bash distribution. That file
is not meant to be all-encompassing; send mail to bash-maintainers@gnu.org
if if you find something that's not mentioned there.
Section C: Differences from other Unix shells
@ -589,6 +626,7 @@ completely.
Things bash has that sh does not:
long invocation options
[+-]O invocation option
-l invocation option
`!' reserved word to invert pipeline return value
`time' reserved word to time pipelines and shell builtins
the `function' reserved word
@ -601,7 +639,7 @@ Things bash has that sh does not:
the ${#param} parameter value length operator
the ${!param} indirect parameter expansion operator
the ${!param*} prefix expansion operator
the ${param:length[:offset]} parameter substring operator
the ${param:offset[:length]} parameter substring operator
the ${param/pat[/string]} parameter pattern substitution operator
expansions to perform substring removal (${p%[%]w}, ${p#[#]w})
expansion of positional parameters beyond $9 with ${num}
@ -616,18 +654,18 @@ Things bash has that sh does not:
DEBUG trap
ERR trap
variable arrays with new compound assignment syntax
redirections: <>, &>, >|
redirections: <>, &>, >|, <<<, [n]<&word-, [n]>&word-
prompt string special char translation and variable expansion
auto-export of variables in initial environment
command search finds functions before builtins
bash return builtin will exit a file sourced with `.'
builtins: cd -/-L/-P, exec -l/-c/-a, echo -e/-E, hash -p/-t.
builtins: cd -/-L/-P, exec -l/-c/-a, echo -e/-E, hash -d/-l/-p/-t.
export -n/-f/-p/name=value, pwd -L/-P,
read -e/-p/-a/-t/-n/-d/-s,
read -e/-p/-a/-t/-n/-d/-s/-u,
readonly -a/-f/name=value, trap -l, set +o,
set -b/-m/-o option/-h/-p/-B/-C/-H/-P,
unset -f/-v, ulimit -m/-p/-u,
type -a/-p/-t, suspend -f, kill -n,
type -a/-p/-t/-f/-P, suspend -f, kill -n,
test -o optname/s1 == s2/s1 < s2/s1 > s2/-nt/-ot/-ef/-O/-G/-S
bash reads ~/.bashrc for interactive shells, $ENV for non-interactive
bash restricted shell mode is more extensive
@ -690,15 +728,17 @@ C2) How does bash differ from the Korn shell, version ksh88?
Things bash has or uses that ksh88 does not:
long invocation options
[-+]O invocation option
-l invocation option
`!' reserved word
arithmetic for command: for ((expr1 ; expr2; expr3 )); do list; done
arithmetic in largest machine-supported size (intmax_t)
posix mode and posix conformance
command hashing
tilde expansion for assignment statements that look like $PATH
process substitution with named pipes if /dev/fd is not available
the ${!param} indirect parameter expansion operator
the ${!param*} prefix expansion operator
the ${param:length[:offset]} parameter substring operator
the ${param:offset[:length]} parameter substring operator
the ${param/pat[/string]} parameter pattern substitution operator
variables: BASH, BASH_VERSION, BASH_VERSINFO, UID, EUID, SHLVL,
TIMEFORMAT, HISTCMD, HOSTTYPE, OSTYPE, MACHTYPE,
@ -707,7 +747,7 @@ Things bash has or uses that ksh88 does not:
PIPESTATUS, HOSTNAME, OPTERR, SHELLOPTS, GLOBIGNORE,
GROUPS, FUNCNAME, histchars, auto_resume
prompt expansion with backslash escapes and command substitution
redirection: &> (stdout and stderr)
redirection: &> (stdout and stderr), <<<, [n]<&word-, [n]>&word-
more extensive and extensible editing and programmable completion
builtins: bind, builtin, command, declare, dirs, echo -e/-E, enable,
exec -l/-c/-a, fc -s, export -n/-f/-p, hash, help, history,
@ -727,6 +767,7 @@ Things bash has or uses that ksh88 does not:
`**' arithmetic operator to do exponentiation
redirection to /dev/fd/N, /dev/stdin, /dev/stdout, /dev/stderr
arrays of unlimited size
TMOUT is default timeout for `read' and `select'
Things ksh88 has or uses that bash does not:
tracked aliases (alias -t)
@ -736,7 +777,7 @@ Things ksh88 has or uses that bash does not:
typeset +f to list all function names without definitions
text of command history kept in a file, not memory
builtins: alias -x, cd old new, fc -e -, newgrp, print,
read -p/-s/-u/var?prompt, set -A/-o gmacs/
read -p/-s/var?prompt, set -A/-o gmacs/
-o bgnice/-o markdirs/-o nolog/-o trackall/-o viraw/-s,
typeset -H/-L/-R/-Z/-A/-ft/-fu/-fx/-l/-u/-t, whence
using environment to pass attributes of exported variables
@ -754,7 +795,7 @@ Implementation differences:
C3) Which new features in ksh-93 are not in bash, and which are?
New things in ksh-93 not in bash-2.05a:
New things in ksh-93 not in bash-2.05b:
associative arrays
floating point arithmetic and variables
math library functions
@ -775,15 +816,14 @@ New things in ksh-93 not in bash-2.05a:
exit statuses between 0 and 255
set -o pipefail
`+=' variable assignment operator
TMOUT is default timeout for `read' and `select'
<&N- and >&N- redirections (combination dup and close)
FPATH and PATH mixing
getopts -a
-I invocation option
DEBUG trap now executed before each simple command, instead of after
printf %H, %P, %T, %Z modifiers, output base for %d
New things in ksh-93 present in bash-2.05a:
New things in ksh-93 present in bash-2.05b:
[n]<&word- and [n]>&word- redirections (combination dup and close)
for (( expr1; expr2; expr3 )) ; do list; done - arithmetic for command
?:, ++, --, `expr1 , expr2' arithmetic operators
expansions: ${!param}, ${param:offset[:len]}, ${param/pat[/str]},
@ -980,7 +1020,7 @@ ksh-93 feature Bash equivalent
sleep, getconf Bash has loadable versions in examples/loadables
${.sh.version} $BASH_VERSION
print -f printf
hist alias fc=hist
hist alias hist=fc
$HISTEDIT $FCEDIT
Section E: How can I get bash to do certain things, and why does bash do
@ -1139,7 +1179,7 @@ configure with the --enable-xpg-echo-default option to turn this
on. Be aware that this will cause some of the tests run when you
type `make tests' to fail.
There is a shell option, `xpg_echo', settable with `shopt' that will
There is a shell option, `xpg_echo', settable with `shopt', that will
change the behavior of echo at runtime. Enabling this option turns
on expansion of backslash-escape sequences.
@ -1215,10 +1255,9 @@ http://www.pasc.org/interps/unofficial/db/p1003.2/pasc-1003.2-173.html
E9) Why does the pattern matching expression [A-Z]* match files beginning
with every letter except `z'?
Bash-2.05 and later versions have reverted to the bash-2.03 behavior of
honoring the current locale setting when processing ranges within pattern
matching bracket expressions ([A-Z]). This is what POSIX.2 and SUSv2/XPG5
specify.
Bash-2.03, Bash-2.05 and later versions honor the current locale setting
when processing ranges within pattern matching bracket expressions ([A-Z]).
This is what POSIX.2 and SUSv3/XPG6 specify.
The behavior of the matcher in bash-2.05 and later versions depends on the
current LC_COLLATE setting. Setting this variable to `C' or `POSIX' will
@ -1229,7 +1268,11 @@ this:
AaBb...Zz
which means that [A-Z] matches every letter except `z'.
which means that [A-Z] matches every letter except `z'. Others collate like
aAbBcC...zZ
which means that [A-Z] matches every letter except `a'.
The portable way to specify upper case letters is [:upper:] instead of
A-Z; lower case may be specified as [:lower:] instead of a-z.
@ -1252,6 +1295,16 @@ from removing every file in the current directory except those beginning
with `z' and still allow individual users to change the collation order.
Users may put the above command into their own profiles as well, of course.
E10) Why does `cd //' leave $PWD as `//'?
POSIX.2, in its description of `cd', says that *three* or more leading
slashes may be replaced with a single slash when canonicalizing the
current working directory.
This is, I presume, for historical compatibility. Certain versions of
Unix, and early network file systems, used paths of the form
//hostname/path to access `path' on server `hostname'.
Section F: Things to watch out for on certain Unix versions
F1) Why can't I use command line editing in my `cmdtool'?
@ -1386,6 +1439,21 @@ to the beginning of /etc/inputrc, or bracket the key bindings in
[...]
$endif
F7) Why do bash-2.05a and bash-2.05b fail to compile `printf.def' on
HP/UX 11.x?
HP/UX's support for long double is imperfect at best.
GCC will support it without problems, but the HP C library functions
like strtold(3) and printf(3) don't actually work with long doubles.
HP implemented a `long_double' type as a 4-element array of 32-bit
ints, and that is what the library functions use. The ANSI C
`long double' type is a 128-bit floating point scalar.
The easiest fix, until HP fixes things up, is to edit the generated
config.h and #undef the HAVE_LONG_DOUBLE line. After doing that,
the compilation should complete successfully.
Section G: How can I get bash to do certain common things?
G1) How can I get bash to read and display eight-bit characters?
@ -1607,11 +1675,8 @@ H3) What's coming in future versions?
These are features I hope to include in a future version of bash.
a better bash debugger (a minimally-tested version is included with bash-2.05a)
a better bash debugger (a minimally-tested version is included with bash-2.05b)
associative arrays
changes to the DEBUG trap to be compatible with ksh93 (which runs the
trap before each simple command, instead of after each one like previous
versions)
co-processes, but with a new-style syntax that looks like function declaration
H4) What's on the bash `wish list' for future versions?
@ -1621,7 +1686,6 @@ These are features that may or may not appear in a future version of bash.
breaking some of the shell functionality into embeddable libraries
a module system like zsh's, using dynamic loading like builtins
better internationalization using GNU `gettext'
an option to use external files for the long `help' text
date-stamped command history
a bash programmer's guide with a chapter on creating loadable builtins
a better loadable interface to perl with access to the shell builtins and
@ -1637,7 +1701,7 @@ H5) When will the next release appear?
The next version will appear sometime in 2002. Never make predictions.
This document is Copyright 1995-2001 by Chester Ramey.
This document is Copyright 1995-2002 by Chester Ramey.
Permission is hereby granted, without written agreement and
without license or royalty fees, to use, copy, and distribute

54
doc/Makefile.in
View file

@ -65,6 +65,10 @@ PSDPI = 300 # could be 600 if you like
DVIPS = dvips -D ${PSDPI} $(QUIETPS) -t ${PAPERSIZE} -o $@ # tricky
TEXINPUTDIR = $(RL_LIBDIR)/doc
# These tools might not be available; they're not required
DVIPDF = dvipdfm -o $@ -p ${PAPERSIZE}
PSPDF = gs -sPAPERSIZE=${PAPERSIZE} -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -sOutputFile=$@
MKDIRS = ${topdir}/support/mkdirs
# This should be a program that converts troff to an ascii-readable format
@ -76,7 +80,7 @@ GROFF = groff
HSUSER = $(RL_LIBDIR)/doc/hsuser.texinfo
RLUSER = $(RL_LIBDIR)/doc/rluser.texinfo
.SUFFIXES: .0 .1 .3 .ms .ps .txt .dvi .html
.SUFFIXES: .0 .1 .3 .ms .ps .txt .dvi .html .pdf
.1.ps:
$(RM) $@
@ -110,6 +114,14 @@ RLUSER = $(RL_LIBDIR)/doc/rluser.texinfo
$(RM) $@
-${MAN2HTML} $< > $@
.ps.pdf:
$(RM) $@
-${PSPDF} $<
.dvi.pdf:
$(RM) $@
-${DVIPDF} $<
all: ps info dvi text html
nodvi: ps info text html
@ -118,12 +130,14 @@ DVIFILES = bashref.dvi bashref.ps
INFOFILES = bashref.info
MAN0FILES = bash.0 bashbug.0 builtins.0 rbash.0
HTMLFILES = bashref.html bash.html
PDFFILES = bash.pdf bashref.pdf article.pdf rose94.pdf
ps: ${PSFILES}
dvi: ${DVIFILES}
info: ${INFOFILES}
text: ${MAN0FILES}
html: ${HTMLFILES}
pdf: ${PDFFILES}
bashref.dvi: $(srcdir)/bashref.texi $(HSUSER) $(RLUSER)
TEXINPUTS=.:$(TEXINPUTDIR):$$TEXINPUTS $(TEXI2DVI) $(srcdir)/bashref.texi
@ -148,12 +162,12 @@ new-bashref.ps: new-bashref.dvi
new-bashref.info: $(srcdir)/new-bashref.texi $(HSUSER) $(RLUSER)
$(MAKEINFO) --no-split -I$(TEXINPUTDIR) $(srcdir)/new-bashref.texi
bash.dvi: bash.texinfo $(HSUSER) $(RLUSER)
TEXINPUTS=.:$(TEXINPUTDIR):$$TEXINPUTS $(TEXI2DVI) bash.texinfo
bashman.ps: bash.dvi
$(RM) $@
$(DVIPS) bash.dvi
#bash.dvi: bash.texinfo $(HSUSER) $(RLUSER)
# TEXINPUTS=.:$(TEXINPUTDIR):$$TEXINPUTS $(TEXI2DVI) bash.texinfo
#
#bashman.ps: bash.dvi
# $(RM) $@
# $(DVIPS) bash.dvi
bash.txt: bash.1
bash.ps: bash.1
@ -167,6 +181,11 @@ builtins.0: builtins.1 bash.1
rbash.0: rbash.1 bash.1
article.ps: article.ms
article.pdf: article.ps
bashref.pdf: bashref.dvi
bash.pdf: bash.ps
rose94.pdf: rose94.ps
$(MAN2HTML): ${topdir}/support/man2html.c
-( cd ${BUILD_DIR}/support ; ${MAKE} ${MFLAGS} man2html)
@ -175,7 +194,10 @@ clean:
*.pgs *.bt *.bts *.rw *.rws *.fns *.kys *.tps *.vrs *.o
${RM} core *.core
distclean mostlyclean: clean
mostlyclean: clean
$(RM) Makefile
distclean: clean maybe-clean
$(RM) Makefile
maintainer-clean: clean
@ -183,6 +205,11 @@ maintainer-clean: clean
${RM} ${CREATED_FAQ}
$(RM) Makefile
maybe-clean:
-if test "X$(topdir)" != "X$(BUILD_DIR)"; then \
$(RM) ${PSFILES} ${DVIFILES} ${INFOFILES} ${MAN0FILES} ${HTMLFILES}; \
fi
installdirs:
-test -d $(man1dir) || $(SHELL) ${MKDIRS} $(DESTDIR)$(man1dir)
-test -d $(infodir) || $(SHELL) ${MKDIRS} $(DESTDIR)$(infodir)
@ -250,7 +277,12 @@ inst: bashref.texi
posix: bashref.texi
$(SHELL) ./mkposix
cmp -s POSIX.NOTES ../CWRU/POSIX.NOTES || mv POSIX.NOTES ../CWRU/POSIX.NOTES
$(RM) POSIX.NOTES
cmp -s POSIX ../POSIX || mv POSIX ../POSIX
$(RM) POSIX
xdist: inst posix
rbash: bashref.texi
$(SH) ./mkrbash
cmp -s RBASH ../RBASH || mv RBASH ../RBASH
$(RM) RBASH
xdist: inst posix rbash

305
doc/bash.1
View file

@ -6,12 +6,12 @@
.\" Case Western Reserve University
.\" chet@ins.CWRU.Edu
.\"
.\" Last Change: Tue Nov 13 12:55:51 EST 2001
.\" Last Change: Mon Jul 15 15:20:56 EDT 2002
.\"
.\" bash_builtins, strip all but Built-Ins section
.if \n(zZ=1 .ig zZ
.if \n(zY=1 .ig zY
.TH BASH 1 "2001 November 13" "GNU Bash-2.05a"
.TH BASH 1 "2002 July 15" "GNU Bash-2.05b"
.\"
.\" There's some problem with having a `@'
.\" in a tagged paragraph with the BSD man macros.
@ -51,8 +51,8 @@ bash \- GNU Bourne-Again SHell
[options]
[file]
.SH COPYRIGHT
.if n Bash is Copyright (C) 1989-2001 by the Free Software Foundation, Inc.
.if t Bash is Copyright \(co 1989-2001 by the Free Software Foundation, Inc.
.if n Bash is Copyright (C) 1989-2002 by the Free Software Foundation, Inc.
.if t Bash is Copyright \(co 1989-2002 by the Free Software Foundation, Inc.
.SH DESCRIPTION
.B Bash
is an \fBsh\fR-compatible command language interpreter that
@ -81,6 +81,20 @@ If there are arguments after the
they are assigned to the positional parameters, starting with
.BR $0 .
.TP
.B \-i
If the
.B \-i
option is present, the shell is
.IR interactive .
.TP
.B \-l
Make
.B bash
act as if it had been invoked as a login shell (see
.SM
.B INVOCATION
below).
.TP
.B \-r
If the
.B \-r
@ -91,12 +105,6 @@ option is present, the shell becomes
.B "RESTRICTED SHELL"
below).
.TP
.B \-i
If the
.B \-i
option is present, the shell is
.IR interactive .
.TP
.B \-s
If the
.B \-s
@ -140,7 +148,7 @@ is equivalent to \fB\-\-\fP.
.B Bash
also interprets a number of multi-character options.
These options must appear on the command line before the
single-character options in order for them to be recognized.
single-character options to be recognized.
.PP
.PD 0
.TP
@ -154,8 +162,8 @@ Equivalent to \fB\-D\fP.
.B \-\-help
Display a usage message on standard output and exit successfully.
.TP
.PD 0
\fB\-\-init\-file\fP \fIfile\fP
.PD 0
.TP
\fB\-\-rcfile\fP \fIfile\fP
.PD
@ -169,12 +177,7 @@ if the shell is interactive (see
below).
.TP
.B \-\-login
Make
.B bash
act as if it had been invoked as a login shell (see
.SM
.B INVOCATION
below).
Equivalent to \fB\-l\fP.
.TP
.B \-\-noediting
Do not use the GNU
@ -560,6 +563,9 @@ and
.BR &,
which have equal precedence.
.PP
A sequence of one or more newlines may appear in a \fIlist\fP instead
of a semicolon to delimit commands.
.PP
If a command is terminated by the control operator
.BR & ,
the shell executes the command in the \fIbackground\fP
@ -685,7 +691,7 @@ is true.
The \fB&&\fP and
.if t \fB\(bv\(bv\fP
.if n \fB||\fP
operators do not execute \fIexpression2\fP if the value of
operators do not evaluate \fIexpression2\fP if the value of
\fIexpression1\fP is sufficient to determine the return value of
the entire conditional expression.
.RE
@ -773,8 +779,8 @@ command completes. Otherwise, the \fBelse\fP \fIlist\fP is
executed, if present. The exit status is the exit status of the
last command executed, or zero if no condition tested true.
.TP
.PD 0
\fBwhile\fP \fIlist\fP; \fBdo\fP \fIlist\fP; \fBdone\fP
.PD 0
.TP
\fBuntil\fP \fIlist\fP; \fBdo\fP \fIlist\fP; \fBdone\fP
.PD
@ -929,6 +935,9 @@ the eight-bit character whose value is the octal value \fInnn\fP
.B \ex\fIHH\fP
the eight-bit character whose value is the hexadecimal value \fIHH\fP
(one or two hex digits)
.TP
.B \ec\fIx\fP
a control-\fIx\fP character
.PD
.RE
.LP
@ -1417,7 +1426,9 @@ This is a colon-separated list of directories in which the shell looks
for destination directories specified by the
.B cd
command.
A sample value is ``.:~:/usr''.
A sample value is
.if t \f(CW".:~:/usr"\fP.
.if n ".:~:/usr".
.TP
.B COLUMNS
Used by the \fBselect\fP builtin command to determine the terminal width
@ -1443,7 +1454,9 @@ A filename whose suffix matches one of the entries in
.SM
.B FIGNORE
is excluded from the list of matched filenames.
A sample value is ``.o:~''.
A sample value is
.if t \f(CW".o:~"\fP.
.if n ".o:~".
.TP
.B GLOBIGNORE
A colon-separated list of patterns defining the set of filenames to
@ -1761,7 +1774,11 @@ If the value is null, no timing information is displayed.
A trailing newline is added when the format string is displayed.
.TP
.B TMOUT
If set to a value greater than zero, the value is interpreted as the
If set to a value greater than zero, \fBTMOUT\fP is treated as the
default timeout for the \fBread\fP builtin.
The \fBselect\fP command terminates if input does not arrive
after \fBTMOUT\fP seconds when input is coming from a terminal.
In an interactive shell, the value is interpreted as the
number of seconds to wait for input after issuing the primary prompt.
.B Bash
terminates after waiting for that number of seconds if input does
@ -2150,8 +2167,8 @@ is null or unset, nothing is substituted, otherwise the expansion of
.I word
is substituted.
.TP
.PD 0
${\fIparameter\fP\fB:\fP\fIoffset\fP}
.PD 0
.TP
${\fIparameter\fP\fB:\fP\fIoffset\fP\fB:\fP\fIlength\fP}
.PD
@ -2200,8 +2217,8 @@ or
.BR @ ,
the value substituted is the number of elements in the array.
.TP
.PD 0
${\fIparameter\fP\fB#\fP\fIword\fP}
.PD 0
.TP
${\fIparameter\fP\fB##\fP\fIword\fP}
.PD
@ -2232,8 +2249,8 @@ or
the pattern removal operation is applied to each member of the
array in turn, and the expansion is the resultant list.
.TP
.PD 0
${\fIparameter\fP\fB%\fP\fIword\fP}
.PD 0
.TP
${\fIparameter\fP\fB%%\fP\fIword\fP}
.PD
@ -2262,8 +2279,8 @@ or
the pattern removal operation is applied to each member of the
array in turn, and the expansion is the resultant list.
.TP
.PD 0
${\fIparameter\fP\fB/\fP\fIpattern\fP\fB/\fP\fIstring\fP}
.PD 0
.TP
${\fIparameter\fP\fB//\fP\fIpattern\fP\fB/\fP\fIstring\fP}
.PD
@ -2596,10 +2613,11 @@ following classes defined in the POSIX.2 standard:
.PP
.RS
.B
.if n alnum alpha ascii blank cntrl digit graph lower print punct space upper xdigit
.if t alnum alpha ascii blank cntrl digit graph lower print punct space upper xdigit
.if n alnum alpha ascii blank cntrl digit graph lower print punct space upper word xdigit
.if t alnum alpha ascii blank cntrl digit graph lower print punct space upper word xdigit
.br
A character class matches any character belonging to that class.
The \fBword\fP character class matches letters, digits, and the character _.
.br
.if t .sp 0.5
.if n .sp 1
@ -2849,7 +2867,7 @@ is seen. All of
the lines read up to that point are then used as the standard
input for a command.
.PP
The format of here-documents is as follows:
The format of here-documents is:
.RS
.PP
.nf
@ -2890,6 +2908,17 @@ line containing
This allows
here-documents within shell scripts to be indented in a
natural fashion.
.SS "Here Strings"
A variant of here documents, the format is:
.RS
.PP
.nf
\fB<<<\fP\fIword\fP
.fi
.RE
.PP
The \fIword\fP is expanded and supplied to the command on its standard
input.
.SS "Duplicating File Descriptors"
.PP
The redirection operator
@ -2932,6 +2961,28 @@ do not specify a file descriptor open for output, a redirection error occurs.
As a special case, if \fIn\fP is omitted, and \fIword\fP does not
expand to one or more digits, the standard output and standard
error are redirected as described previously.
.SS "Moving File Descriptors"
.PP
The redirection operator
.RS
.PP
[\fIn\fP]\fB<&\fP\fIdigit\fP\fB\-\fP
.RE
.PP
moves the file descriptor \fIdigit\fP to file descriptor
.IR n ,
or the standard input (file descriptor 0) if \fIn\fP is not specified.
\fIdigit\fP is closed after being duplicated to \fIn\fP.
.PP
Similarly, the redirection operator
.RS
.PP
[\fIn\fP]\fB>&\fP\fIdigit\fP\fB\-\fP
.RE
.PP
moves the file descriptor \fIdigit\fP to file descriptor
.IR n ,
or the standard output (file descriptor 1) if \fIn\fP is not specified.
.SS "Opening File Descriptors for Reading and Writing"
.PP
The redirection operator
@ -3058,7 +3109,11 @@ trap (see the description of the
builtin under
.SM
.B SHELL BUILTIN COMMANDS
below) is not inherited.
below) is not inherited unless the function has been given the
\fBtrace\fP attribute (see the description of the
.SM
.B declare
builtin below).
.PP
Variables local to the function may be declared with the
.B local
@ -3101,7 +3156,7 @@ of recursive calls.
The shell allows arithmetic expressions to be evaluated, under
certain circumstances (see the \fBlet\fP builtin command and
\fBArithmetic Expansion\fP).
Evaluation is done in long integers with no check for overflow,
Evaluation is done in fixed-width integers with no check for overflow,
though division by 0 is trapped and flagged as an error.
The operators and their precedence and associativity are the same
as in the C language.
@ -3269,14 +3324,15 @@ True if \fIfile\fP exists and is a socket.
True if \fIfile\fP exists and has been modified since it was last read.
.TP
\fIfile1\fP \-\fBnt\fP \fIfile2\fP
True if \fIfile1\fP is newer (according to
modification date) than \fIfile2\fP.
True if \fIfile1\fP is newer (according to modification date) than \fIfile2\fP,
or if \fIfile1\fP exists and \fPfile2\fP does not.
.TP
\fIfile1\fP \-\fBot\fP \fIfile2\fP
True if \fIfile1\fP is older than \fIfile2\fP.
True if \fIfile1\fP is older than \fIfile2\fP, or if \fIfile2\fP exists
and \fIfile1\fP does not.
.TP
\fIfile1\fP \fB\-ef\fP \fIfile2\fP
True if \fIfile1\fP and \fIfile2\fP have the same device and
True if \fIfile1\fP and \fIfile2\fP refer to the same device and
inode numbers.
.TP
.B \-o \fIoptname\fP
@ -3301,7 +3357,7 @@ is non-zero.
.TP
\fIstring1\fP \fB==\fP \fIstring2\fP
True if the strings are equal. \fB=\fP may be used in place of
\fB==\fP.
\fB==\fP for strict POSIX compliance.
.TP
\fIstring1\fP \fB!=\fP \fIstring2\fP
True if the strings are not equal.
@ -3851,6 +3907,11 @@ an ASCII bell character (07)
.B \ed
the date in "Weekday Month Date" format (e.g., "Tue May 26")
.TP
.B \eD{\fIformat\fP}
the \fIformat\fP is passed to \fIstrftime\fP(3) and the result is inserted
into the prompt string; an empty \fIformat\fP results in a locale-specific
time representation. The braces are required
.TP
.B \ee
an ASCII escape character (033)
.TP
@ -4328,6 +4389,11 @@ appended.
If set to \fBOn\fP, history lines that have been modified are displayed
with a preceding asterisk (\fB*\fP).
.TP
.B mark\-symlinked\-directories (Off)
If set to \fBOn\fP, completed names which are symbolic links to directories
have a slash appended (subject to the value of
\fBmark\-directories\fP).
.TP
.B match\-hidden\-files (On)
This variable, when set to \fBOn\fP, causes readline to match files whose
names begin with a `.' (hidden files) when performing filename
@ -4339,6 +4405,10 @@ If set to \fBOn\fP, readline will display characters with the
eighth bit set directly rather than as a meta-prefixed escape
sequence.
.TP
.B page\-completions (On)
If set to \fBOn\fP, readline uses an internal \fImore\fP-like pager
to display a screenful of possible completions at a time.
.TP
.B print\-completions\-horizontally (Off)
If set to \fBOn\fP, readline will display completions with matches
sorted horizontally in alphabetical order, rather than down the screen.
@ -4616,6 +4686,16 @@ A synonym for \fByank\-last\-arg\fP.
Accept the current line for execution and fetch the next line
relative to the current line from the history for editing. Any
argument is ignored.
.TP
.B edit\-and\-execute\-command (C\-xC\-e)
Invoke an editor on the current command line, and execute the result as shell
commands.
\fBBash\fP attempts to invoke
.SM
.BR $FCEDIT ,
.SM
.BR $EDITOR ,
and \fIemacs\fP as the editor, in that order.
.PD
.SS Commands for Changing Text
.PP
@ -4672,6 +4752,17 @@ lowercase the previous word, but do not move point.
.B capitalize\-word (M\-c)
Capitalize the current (or following) word. With a negative argument,
capitalize the previous word, but do not move point.
.TP
.B overwrite\-mode
Toggle overwrite mode. With an explicit positive numeric argument,
switches to overwrite mode. With an explicit non-positive numeric
argument, switches to insert mode. This command affects only
\fBemacs\fP mode; \fBvi\fP mode does overwrite differently.
Each call to \fIreadline()\fP starts in insert mode.
In overwrite mode, characters bound to \fBself\-insert\fP replace
the text at point rather than pushing the text to the right.
Characters bound to \fBbackward\-delete\-char\fP replace the character
before point with a space. By default, this command is unbound.
.PD
.SS Killing and Yanking
.PP
@ -4915,21 +5006,38 @@ A character is read and point is moved to the previous occurrence of that
character. A negative count searches for subsequent occurrences.
.TP
.B insert\-comment (M\-#)
The value of the readline
Without a numeric argument, the value of the readline
.B comment\-begin
variable is inserted at the beginning of the current line, and the line
is accepted as if a newline had been typed. The default value of
variable is inserted at the beginning of the current line.
If a numeric argument is supplied, this command acts as a toggle: if
the characters at the beginning of the line do not match the value
of \fBcomment\-begin\fP, the value is inserted, otherwise
the characters in \fBcomment-begin\fP are deleted from the beginning of
the line.
In either case, the line is accepted as if a newline had been typed.
The default value of
\fBcomment\-begin\fP causes this command to make the current line
a shell comment.
If a numeric argument causes the comment character to be removed, the line
will be executed by the shell.
.TP
.B glob\-complete\-word (M\-g)
The word before point is treated as a pattern for pathname expansion,
with an asterisk implicitly appended. This pattern is used to
generate a list of matching file names for possible completions.
.TP
.B glob\-expand\-word (C\-x *)
The word before point is treated as a pattern for pathname expansion,
and the list of matching file names is inserted, replacing the word.
If a numeric argument is supplied, an asterisk is appended before
pathname expansion.
.TP
.B glob\-list\-expansions (C\-x g)
The list of expansions that would have been generated by
.B glob\-expand\-word
is displayed, and the line is redrawn.
If a numeric argument is supplied, an asterisk is appended before
pathname expansion.
.TP
.B dump\-functions
Print all of the functions and their key bindings to the
@ -5083,6 +5191,12 @@ default of filename completion is disabled.
If the \fB-o default\fP option was supplied to \fBcomplete\fP when the
compspec was defined, readline's default completion will be performed
if the compspec generates no matches.
.PP
When a compspec indicates that directory name completion is desired,
the programmable completion functions force readline to append a slash
to completed names which are symbolic links to directories, subject to
the value of the \fBmark\-directories\fP readline variable, regardless
of the setting of the \fBmark-symlinked\-directories\fP readline variable.
.SH HISTORY
When the
.B \-o history
@ -5460,8 +5574,8 @@ No effect; the command does nothing beyond expanding
and performing any specified
redirections. A zero exit code is returned.
.TP
.PD 0
\fB .\| \fP \fIfilename\fP [\fIarguments\fP]
.PD 0
.TP
\fBsource\fP \fIfilename\fP [\fIarguments\fP]
.PD
@ -5528,8 +5642,8 @@ returns 0 unless run when job control is disabled or, when run with
job control enabled, if \fIjobspec\fP was not found or started without
job control.
.TP
.PD 0
\fBbind\fP [\fB\-m\fP \fIkeymap\fP] [\fB\-lpsvPSV\fP]
.PD 0
.TP
\fBbind\fP [\fB\-m\fP \fIkeymap\fP] [\fB\-q\fP \fIfunction\fP] [\fB\-u\fP \fIfunction\fP] [\fB\-r\fP \fIkeyseq\fP]
.TP
@ -5538,16 +5652,21 @@ job control.
\fBbind\fP [\fB\-m\fP \fIkeymap\fP] \fB\-x\fP \fIkeyseq\fP:\fIshell\-command\fP
.TP
\fBbind\fP [\fB\-m\fP \fIkeymap\fP] \fIkeyseq\fP:\fIfunction\-name\fP
.TP
\fBbind\fP \fIreadline\-command\fP
.PD
Display current
.B readline
key and function bindings, or bind a key sequence to a
key and function bindings, bind a key sequence to a
.B readline
function or macro. The binding syntax accepted is identical to that of
function or macro, or set a
.B readline
variable.
Each non-option argument is a command as it would appear in
.IR .inputrc ,
but each binding must be passed as a separate argument;
e.g., '"\eC\-x\eC\-r": re\-read\-init\-file'. Options, if supplied, have the
following meanings:
but each binding or command must be passed as a separate argument;
e.g., '"\eC\-x\eC\-r": re\-read\-init\-file'.
Options, if supplied, have the following meanings:
.RS
.PD 0
.TP
@ -5639,7 +5758,7 @@ The return status is false if
.I shell\-builtin
is not a shell builtin command.
.TP
\fBcd\fP [\fB\-LP\fP] [\fIdir\fP]
\fBcd\fP [\fB\-L|-P\fP] [\fIdir\fP]
Change the current directory to \fIdir\fP. The variable
.SM
.B HOME
@ -5743,10 +5862,10 @@ will be displayed.
The return value is true unless an invalid option is supplied, or no
matches were generated.
.TP
.PD 0
\fBcomplete\fP [\fB\-abcdefgjkvu\fP] [\fB\-o\fP \fIcomp-option\fP] [\fB\-A\fP \fIaction\fP] [\fB\-G\fP \fIglobpat\fP] [\fB\-W\fP \fIwordlist\fP] [\fB\-P\fP \fIprefix\fP] [\fB\-S\fP \fIsuffix\fP]
\fBcomplete\fP [\fB\-abcdefgjksuv\fP] [\fB\-o\fP \fIcomp-option\fP] [\fB\-A\fP \fIaction\fP] [\fB\-G\fP \fIglobpat\fP] [\fB\-W\fP \fIwordlist\fP] [\fB\-P\fP \fIprefix\fP] [\fB\-S\fP \fIsuffix\fP]
.br
[\fB\-X\fP \fIfilterpat\fP] [\fB\-F\fP \fIfunction\fP] [\fB\-C\fP \fIcommand\fP] \fIname\fP [\fIname ...\fP]
.PD 0
.TP
\fBcomplete\fP \fB\-pr\fP [\fIname\fP ...]
.PD
@ -5777,7 +5896,8 @@ beyond the simple generation of completions.
.RS
.TP 8
.B default
Use readline's default completion if the compspec generates no matches.
Use readline's default filename completion if the compspec generates
no matches.
.TP 8
.B dirnames
Perform directory name completion if the compspec generates no matches.
@ -5786,6 +5906,10 @@ Perform directory name completion if the compspec generates no matches.
Tell readline that the compspec generates filenames, so it can perform any
filename\-specific processing (like adding a slash to directory names or
suppressing trailing spaces). Intended to be used with shell functions.
.TP 8
.B nospace
Tell readline not to append a space (the default) to words completed at
the end of the line.
.RE
.TP 8
\fB\-A\fP \fIaction\fP
@ -5847,6 +5971,9 @@ Shell reserved words. May also be specified as \fB\-k\fP.
.B running
Names of running jobs, if job control is active.
.TP 8
.B service
Service names. May also be specified as \fB\-s\fP.
.TP 8
.B setopt
Valid arguments for the \fB\-o\fP option to the \fBset\fP builtin.
.TP 8
@ -5935,10 +6062,10 @@ shell is not executing a loop when
.B continue
is executed.
.TP
\fBdeclare\fP [\fB\-afFirtx\fP] [\fB\-p\fP] [\fIname\fP[=\fIvalue\fP]]
.PD 0
\fBdeclare\fP [\fB\-afFirx\fP] [\fB\-p\fP] [\fIname\fP[=\fIvalue\fP]]
.TP
\fBtypeset\fP [\fB\-afFirx\fP] [\fB\-p\fP] [\fIname\fP[=\fIvalue\fP]]
\fBtypeset\fP [\fB\-afFirtx\fP] [\fB\-p\fP] [\fIname\fP[=\fIvalue\fP]]
.PD
Declare variables and/or give them attributes.
If no \fIname\fPs are given then display the values of variables.
@ -5981,6 +6108,11 @@ is performed when the variable is assigned a value.
Make \fIname\fPs readonly. These names cannot then be assigned values
by subsequent assignment statements or unset.
.TP
.B \-t
Give each \fIname\fP the \fItrace\fP attribute.
Traced functions inherit the \fBDEBUG\fP trap from the calling shell.
The trace attribute has no special meaning for variables.
.TP
.B \-x
Mark \fIname\fPs for export to subsequent commands via the environment.
.PD
@ -6132,9 +6264,13 @@ vertical tab
.B \e\e
backslash
.TP
.B \e0\fInnn\fP
the eight-bit character whose value is the octal value \fInnn\fP
(zero to three octal digits)
.TP
.B \e\fInnn\fP
the eight-bit character whose value is the octal value \fInnn\fP
(one to three digits)
(one to three octal digits)
.TP
.B \ex\fIHH\fP
the eight-bit character whose value is the hexadecimal value \fIHH\fP
@ -6239,8 +6375,8 @@ A trap on
.B EXIT
is executed before the shell terminates.
.TP
.PD 0
\fBexport\fP [\fB\-fn\fP\^] [\fIname\fP[=\fIword\fP]] ...
.PD 0
.TP
.B export \-p
.PD
@ -6272,8 +6408,8 @@ is supplied with a
.I name
that is not a function.
.TP
.PD 0
\fBfc\fP [\fB\-e\fP \fIename\fP] [\fB\-nlr\fP] [\fIfirst\fP] [\fIlast\fP]
.PD 0
.TP
\fBfc\fP \fB\-s\fP [\fIpat\fP=\fIrep\fP] [\fIcmd\fP]
.PD
@ -6484,7 +6620,7 @@ returns true if an option, specified or unspecified, is found.
It returns false if the end of options is encountered or an
error occurs.
.TP
\fBhash\fP [\fB\-r\fP] [\fB\-p\fP \fIfilename\fP] [\fB\-t\fP] [\fIname\fP]
\fBhash\fP [\fB\-lr\fP] [\fB\-p\fP \fIfilename\fP] [\fB\-dt\fP] [\fIname\fP]
For each
.IR name ,
the full file name of the command is determined by searching
@ -6500,12 +6636,19 @@ The
.B \-r
option causes the shell to forget all
remembered locations.
The
.B \-d
option causes the shell to forget the remembered location of each \fIname\fP.
If the
.B \-t
option is supplied, the full pathname to which each \fIname\fP corresponds
is printed. If multiple \fIname\fP arguments are supplied with \fB\-t\fP,
the \fIname\fP is printed before the hashed full pathname.
If no arguments are given, information about remembered commands is printed.
The
.B \-l
option causes output to be displayed in a format that may be reused as input.
If no arguments are given, or if only \fB\-l\fP is supplied,
information about remembered commands is printed.
The return status is true unless a
.I name
is not found or an invalid option is supplied.
@ -6524,8 +6667,8 @@ usage synopsis.
The return status is 0 unless no command matches
.IR pattern .
.TP
.PD 0
\fBhistory [\fIn\fP]
.PD 0
.TP
\fBhistory\fP \fB\-c\fP
.TP
@ -6598,8 +6741,8 @@ error occurs while reading or writing the history file, an invalid
history expansion supplied as an argument to \fB\-p\fP fails.
.RE
.TP
.PD 0
\fBjobs\fP [\fB\-lnprs\fP] [ \fIjobspec\fP ... ]
.PD 0
.TP
\fBjobs\fP \fB\-x\fP \fIcommand\fP [ \fIargs\fP ... ]
.PD
@ -6652,8 +6795,8 @@ passing it
returning its exit status.
.RE
.TP
.PD 0
\fBkill\fP [\fB\-s\fP \fIsigspec\fP | \fB\-n\fP \fIsignum\fP | \fB\-\fP\fIsigspec\fP] [\fIpid\fP | \fIjobspec\fP] ...
.PD 0
.TP
\fBkill\fP \fB\-l\fP [\fIsigspec\fP | \fIexit_status\fP]
.PD
@ -6805,8 +6948,8 @@ extra format specifications behave as if a zero value or null string, as
appropriate, had been supplied. The return value is zero on success,
non-zero on failure.
.TP
.PD 0
\fBpushd\fP [\fB\-n\fP] [\fIdir\fP]
.PD 0
.TP
\fBpushd\fP [\fB\-n\fP] [+\fIn\fP] [\-\fIn\fP]
.PD
@ -6875,8 +7018,9 @@ The return status is 0 unless an error occurs while
reading the name of the current directory or an
invalid option is supplied.
.TP
\fBread\fP [\fB\-ers\fP] [\fB\-t\fP \fItimeout\fP] [\fB\-a\fP \fIaname\fP] [\fB\-p\fP \fIprompt\fP] [\fB\-n\fP \fInchars\fP] [\fB\-d\fP \fIdelim\fP] [\fIname\fP ...]
One line is read from the standard input, and the first word
\fBread\fP [\fB\-ers\fP] [\fB\-u\fP \fIfd\fP] [\fB\-t\fP \fItimeout\fP] [\fB\-a\fP \fIaname\fP] [\fB\-p\fP \fIprompt\fP] [\fB\-n\fP \fInchars\fP] [\fB\-d\fP \fIdelim\fP] [\fIname\fP ...]
One line is read from the standard input, or from the file descriptor
\fIfd\fP supplied as an argument to the \fB\-u\fP option, and the first word
is assigned to the first
.IR name ,
the second word to the second
@ -6884,7 +7028,7 @@ the second word to the second
and so on, with leftover words and their intervening separators assigned
to the last
.IR name .
If there are fewer words read from the standard input than names,
If there are fewer words read from the input stream than names,
the remaining names are assigned empty values.
The characters in
.SM
@ -6942,6 +7086,9 @@ Cause \fBread\fP to time out and return failure if a complete line of
input is not read within \fItimeout\fP seconds.
This option has no effect if \fBread\fP is not reading input from the
terminal or a pipe.
.TP
.B \-u \fIfd\FP
Read input from file descriptor \fIfd\fP.
.PD
.PP
If no
@ -6949,8 +7096,9 @@ If no
are supplied, the line read is assigned to the variable
.SM
.BR REPLY .
The return code is zero, unless end-of-file is encountered or \fBread\fP
times out.
The return code is zero, unless end-of-file is encountered, \fBread\fP
times out, or an invalid file descriptor is supplied as the argument to
\fB\-u\fP.
.RE
.TP
\fBreadonly\fP [\fB\-apf\fP] [\fIname\fP ...]
@ -7573,8 +7721,8 @@ the shell is a login shell and
.B \-f
is not supplied, or if job control is not enabled.
.TP
.PD 0
\fBtest\fP \fIexpr\fP
.PD 0
.TP
\fB[\fP \fIexpr\fP \fB]\fP
Return a status of 0 or 1 depending on
@ -7761,7 +7909,7 @@ is invalid; otherwise
.B trap
returns true.
.TP
\fBtype\fP [\fB\-atp\fP] \fIname\fP [\fIname\fP ...]
\fBtype\fP [\fB\-aftpP\fP] \fIname\fP [\fIname\fP ...]
With no options,
indicate how each
.I name
@ -7798,9 +7946,21 @@ or nothing if
.if n ``type -t name''
would not return
.IR file .
The
.B \-P
option forces a
.SM
.B PATH
search for each \fIname\fP, even if
.if t \f(CWtype -t name\fP
.if n ``type -t name''
would not return
.IR file .
If a command is hashed,
.B \-p
prints the hashed value, not necessarily the file that appears
and
.B \-P
print the hashed value, not necessarily the file that appears
first in
.SM
.BR PATH .
@ -7818,6 +7978,9 @@ option is not also used.
The table of hashed commands is not consulted
when using
.BR \-a .
The
.B \-f
option suppresses shell function lookup, as with the \fBcommand\fP builtin.
.B type
returns true if any of the arguments are found, false if
none are found.
@ -8057,6 +8220,8 @@ options to the
.B enable
builtin command
.IP \(bu
Using the \fBenable\fP builtin command to enable disabled shell builtins
.IP \(bu
specifying the
.B \-p
option to the

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doc/bashref.info
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@ -5,13 +5,13 @@
@c %**end of header
@ignore
Last Change: Tue Nov 13 12:48:51 EST 2001
Last Change: Mon Jul 15 15:21:16 EDT 2002
@end ignore
@set EDITION 2.5a
@set VERSION 2.05a
@set UPDATED 13 November 2001
@set UPDATE-MONTH November 2001
@set EDITION 2.5b
@set VERSION 2.05b
@set UPDATED 15 July 2002
@set UPDATE-MONTH July 2002
@iftex
@finalout
@ -36,7 +36,7 @@ This is Edition @value{EDITION}, last updated @value{UPDATED},
of @cite{The GNU Bash Reference Manual},
for @code{Bash}, Version @value{VERSION}.
Copyright (C) 1991-2001 Free Software Foundation, Inc.
Copyright (C) 1991-2002 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
@ -70,7 +70,7 @@ by the Free Software Foundation.
@author Brian Fox, Free Software Foundation
@page
@vskip 0pt plus 1filll
Copyright @copyright{} 1991-1999 Free Software Foundation, Inc.
Copyright @copyright{} 1991-2002 Free Software Foundation, Inc.
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
@ -100,7 +100,7 @@ This is Edition @value{EDITION}, last updated @value{UPDATED},
of @cite{The GNU Bash Reference Manual},
for @code{Bash}, Version @value{VERSION}.
Copyright (C) 1991, 1993, 1996 Free Software Foundation, Inc.
Copyright (C) 1991-2002 Free Software Foundation, Inc.
Bash contains features that appear in other popular shells, and some
features that only appear in Bash. Some of the shells that Bash has
@ -548,6 +548,8 @@ the eight-bit character whose value is the octal value @var{nnn}
@item \x@var{HH}
the eight-bit character whose value is the hexadecimal value @var{HH}
(one or two hex digits)
@item \c@var{x}
a control-@var{x} character
@end table
@noindent
@ -688,6 +690,9 @@ Of these list operators, @samp{&&} and @samp{||}
have equal precedence, followed by @samp{;} and @samp{&},
which have equal precedence.
A sequence of one or more newlines may appear in a @code{list}
to delimit commands, equivalent to a semicolon.
If a command is terminated by the control operator @samp{&},
the shell executes the command asynchronously in a subshell.
This is known as executing the command in the @var{background}.
@ -972,7 +977,7 @@ True if both @var{expression1} and @var{expression2} are true.
True if either @var{expression1} or @var{expression2} is true.
@end table
@noindent
The @code{&&} and @code{||} commands do not execute @var{expression2} if the
The @code{&&} and @code{||} operators do not evaluate @var{expression2} if the
value of @var{expression1} is sufficient to determine the return
value of the entire conditional expression.
@ -1778,10 +1783,12 @@ using the syntax
following classes defined in the @sc{posix} 1003.2 standard:
@example
alnum alpha ascii blank cntrl digit graph lower
print punct space upper xdigit
print punct space upper word xdigit
@end example
@noindent
A character class matches any character belonging to that class.
The @code{word} character class matches letters, digits, and the character
@samp{_}.
Within @samp{[} and @samp{]}, an @var{equivalence class} can be
specified using the syntax @code{[=}@var{c}@code{=]}, which
@ -1905,20 +1912,20 @@ is not specified.
The general format for redirecting input is:
@example
[n]<@var{word}
[@var{n}]<@var{word}
@end example
@subsection Redirecting Output
Redirection of output causes the file whose name results from
the expansion of @var{word}
to be opened for writing on file descriptor @code{n},
or the standard output (file descriptor 1) if @code{n}
to be opened for writing on file descriptor @var{n},
or the standard output (file descriptor 1) if @var{n}
is not specified. If the file does not exist it is created;
if it does exist it is truncated to zero size.
The general format for redirecting output is:
@example
[n]>[|]@var{word}
[@var{n}]>[|]@var{word}
@end example
If the redirection operator is @samp{>}, and the @code{noclobber}
@ -1933,13 +1940,13 @@ is attempted even if the file named by @var{word} exists.
Redirection of output in this fashion
causes the file whose name results from
the expansion of @var{word}
to be opened for appending on file descriptor @code{n},
or the standard output (file descriptor 1) if @code{n}
to be opened for appending on file descriptor @var{n},
or the standard output (file descriptor 1) if @var{n}
is not specified. If the file does not exist it is created.
The general format for appending output is:
@example
[n]>>@var{word}
[@var{n}]>>@var{word}
@end example
@subsection Redirecting Standard Output and Standard Error
@ -1973,7 +1980,7 @@ current source until a line containing only @var{word}
the lines read up to that point are then used as the standard
input for a command.
The format of here-documents is as follows:
The format of here-documents is:
@example
<<[@minus{}]@var{word}
@var{here-document}
@ -1998,45 +2005,71 @@ line containing @var{delimiter}.
This allows here-documents within shell scripts to be indented in a
natural fashion.
@subsection Here Strings
A variant of here documents, the format is:
@example
<<< @var{word}
@end example
The @var{word} is expanded and supplied to the command on its standard
input.
@subsection Duplicating File Descriptors
The redirection operator
@example
[n]<&@var{word}
[@var{n}]<&@var{word}
@end example
@noindent
is used to duplicate input file descriptors.
If @var{word}
expands to one or more digits, the file descriptor denoted by @code{n}
expands to one or more digits, the file descriptor denoted by @var{n}
is made to be a copy of that file descriptor.
If the digits in @var{word} do not specify a file descriptor open for
input, a redirection error occurs.
If @var{word}
evaluates to @samp{-}, file descriptor @code{n} is closed. If
@code{n} is not specified, the standard input (file descriptor 0) is used.
evaluates to @samp{-}, file descriptor @var{n} is closed. If
@var{n} is not specified, the standard input (file descriptor 0) is used.
The operator
@example
[n]>&@var{word}
[@var{n}]>&@var{word}
@end example
@noindent
is used similarly to duplicate output file descriptors. If
@code{n}
is not specified, the standard output (file descriptor 1) is used.
@var{n} is not specified, the standard output (file descriptor 1) is used.
If the digits in @var{word} do not specify a file descriptor open for
output, a redirection error occurs.
As a special case, if @code{n} is omitted, and @var{word} does not
As a special case, if @var{n} is omitted, and @var{word} does not
expand to one or more digits, the standard output and standard
error are redirected as described previously.
@subsection Moving File Descriptors
The redirection operator
@example
[@var{n}]<&@var{digit}-
@end example
@noindent
moves the file descriptor @var{digit} to file descriptor @var{n},
or the standard input (file descriptor 0) if @var{n} is not specified.
@var{digit} is closed after being duplicated to @var{n}.
Similarly, the redirection operator
@example
[@var{n}]>&@var{digit}-
@end example
@noindent
moves the file descriptor @var{digit} to file descriptor @var{n},
or the standard output (file descriptor 1) if @var{n} is not specified.
@subsection Opening File Descriptors for Reading and Writing
The redirection operator
@example
[n]<>@var{word}
[@var{n}]<>@var{word}
@end example
@noindent
causes the file whose name is the expansion of @var{word}
to be opened for both reading and writing on file descriptor
@code{n}, or on file descriptor 0 if @code{n}
@var{n}, or on file descriptor 0 if @var{n}
is not specified. If the file does not exist, it is created.
@node Executing Commands
@ -2501,7 +2534,7 @@ The return status is zero unless @var{n} is not greater than or equal to 1.
@item cd
@btindex cd
@example
cd [-LP] [@var{directory}]
cd [-L|-P] [@var{directory}]
@end example
Change the current working directory to @var{directory}. If @var{directory}
is not given, the value of the @env{HOME} shell variable is used. If the
@ -2637,7 +2670,7 @@ If @code{getopts} is silent, then a colon (@samp{:}) is placed in
@item hash
@btindex hash
@example
hash [-r] [-p @var{filename}] [-t] [@var{name}]
hash [-'r] [-p @var{filename}] [-dt] [@var{name}]
@end example
Remember the full pathnames of commands specified as @var{name} arguments,
so they need not be searched for on subsequent invocations.
@ -2646,11 +2679,16 @@ The commands are found by searching through the directories listed in
The @option{-p} option inhibits the path search, and @var{filename} is
used as the location of @var{name}.
The @option{-r} option causes the shell to forget all remembered locations.
The @option{-d} option causes the shell to forget the remembered location
of each @var{name}.
If the @option{-t} option is supplied, the full pathname to which each
@var{name} corresponds is printed. If multiple @var{name} arguments are
supplied with @option{-t} the @var{name} is printed before the hashed
full pathname.
If no arguments are given, information about remembered commands is printed.
The @option{-l} option causes output to be displayed in a format
that may be reused as input.
If no arguments are given, or if only @option{-l} is supplied,
information about remembered commands is printed.
The return status is zero unless a @var{name} is not found or an invalid
option is supplied.
@ -2905,14 +2943,16 @@ bind [-m @var{keymap}] [-q @var{function}] [-u @var{function}] [-r @var{keyseq}]
bind [-m @var{keymap}] -f @var{filename}
bind [-m @var{keymap}] -x @var{keyseq:shell-command}
bind [-m @var{keymap}] @var{keyseq:function-name}
bind @var{readline-command}
@end example
Display current Readline (@pxref{Command Line Editing})
key and function bindings, or
bind a key sequence to a Readline function or macro. The
binding syntax accepted is identical to that of
key and function bindings,
bind a key sequence to a Readline function or macro,
or set a Readline variable.
Each non-option argument is a command as it would appear in a
a Readline initialization file (@pxref{Readline Init File}),
but each binding must be passed as a separate argument: e.g.,
but each binding or command must be passed as a separate argument; e.g.,
@samp{"\C-x\C-r":re-read-init-file}.
Options, if supplied, have the following meanings:
@ -3019,7 +3059,7 @@ zero if @var{command} is found, and non-zero if not.
@item declare
@btindex declare
@example
declare [-afFrxi] [-p] [@var{name}[=@var{value}]]
declare [-afFirtx] [-p] [@var{name}[=@var{value}]]
@end example
Declare variables and give them attributes. If no @var{name}s
@ -3049,6 +3089,11 @@ performed when the variable is assigned a value.
Make @var{name}s readonly. These names cannot then be assigned values
by subsequent assignment statements or unset.
@item -t
Give each @var{name} the @code{trace} attribute.
Traced functions inherit the @code{DEBUG} trap from the calling shell.
The trace attribute has no special meaning for variables.
@item -x
Mark each @var{name} for export to subsequent commands via
the environment.
@ -3106,9 +3151,12 @@ horizontal tab
vertical tab
@item \\
backslash
@item \0@var{nnn}
the eight-bit character whose value is the octal value @var{nnn}
(zero to three octal digits)
@item \@var{nnn}
the eight-bit character whose value is the octal value @var{nnn}
(one to three digits)
(one to three octal digits)
@item \x@var{HH}
the eight-bit character whose value is the hexadecimal value @var{HH}
(one or two hex digits)
@ -3218,13 +3266,14 @@ non-zero on failure.
@item read
@btindex read
@example
read [-ers] [-a @var{aname}] [-p @var{prompt}] [-t @var{timeout}] [-n @var{nchars}] [-d @var{delim}] [@var{name} @dots{}]
read [-ers] [-a @var{aname}] [-d @var{delim}] [-n @var{nchars}] [-p @var{prompt}] [-t @var{timeout}] [-u @var{fd}] [@var{name} @dots{}]
@end example
One line is read from the standard input, and the first word
One line is read from the standard input, or from the file descriptor
@var{fd} supplied as an argument to the @option{-u} option, and the first word
is assigned to the first @var{name}, the second word to the second @var{name},
and so on, with leftover words and their intervening separators assigned
to the last @var{name}.
If there are fewer words read from the standard input than names,
If there are fewer words read from the input stream than names,
the remaining names are assigned empty values.
The characters in the value of the @env{IFS} variable
are used to split the line into words.
@ -3232,8 +3281,9 @@ The backslash character @samp{\} may be used to remove any special
meaning for the next character read and for line continuation.
If no names are supplied, the line read is assigned to the
variable @env{REPLY}.
The return code is zero, unless end-of-file is encountered or @code{read}
times out.
The return code is zero, unless end-of-file is encountered, @code{read}
times out, or an invalid file descriptor is supplied as the argument to
@option{-u}.
Options, if supplied, have the following meanings:
@table @code
@ -3275,6 +3325,9 @@ input is not read within @var{timeout} seconds.
This option has no effect if @code{read} is not reading input from the
terminal or a pipe.
@item -u @var{fd}
Read input from file descriptor @var{fd}.
@end table
@item shopt
@ -3482,7 +3535,7 @@ A synonym for @code{.} (@pxref{Bourne Shell Builtins}).
@item type
@btindex type
@example
type [-atp] [@var{name} @dots{}]
type [-afptP] [@var{name} @dots{}]
@end example
For each @var{name}, indicate how it would be interpreted if used as a
command name.
@ -3499,11 +3552,20 @@ If the @option{-p} option is used, @code{type} either returns the name
of the disk file that would be executed, or nothing if @option{-t}
would not return @samp{file}.
The @option{-P} option forces a path search for each @var{name}, even if
@option{-t} would not return @samp{file}.
If a command is hashed, @option{-p} and @option{-P} print the hashed value,
not necessarily the file that appears first in @code{$PATH}.
If the @option{-a} option is used, @code{type} returns all of the places
that contain an executable named @var{file}.
This includes aliases and functions, if and only if the @option{-p} option
is not also used.
If the @option{-f} option is used, @code{type} does not attempt to find
shell functions, as with the @code{command} builtin.
The return status is zero if any of the @var{names} are found, non-zero
if none are found.
@ -4329,7 +4391,13 @@ If the value is null, no timing information is displayed.
A trailing newline is added when the format string is displayed.
@item TMOUT
If set to a value greater than zero, the value is interpreted as
If set to a value greater than zero, @code{TMOUT} is treated as the
default timeout for the @code{read} builtin (@pxref{Bash Builtins}).
The @code{select} command (@pxref{Conditional Constructs}) terminates
if input does not arrive after @code{TMOUT} seconds when input is coming
from a terminal.
In an interative shell, the value is interpreted as
the number of seconds to wait for input after issuing the primary
prompt when the shell is interactive.
Bash terminates after that number of seconds if input does
@ -4374,8 +4442,7 @@ bash [long-opt] -s [-abefhkmnptuvxdBCDHP] [-o @var{option}] [-O @var{shopt_optio
In addition to the single-character shell command-line options
(@pxref{The Set Builtin}), there are several multi-character
options that you can use. These options must appear on the command
line before the single-character options in order for them
to be recognized.
line before the single-character options to be recognized.
@table @code
@item --dump-po-strings
@ -4396,15 +4463,7 @@ Execute commands from @var{filename} (instead of @file{~/.bashrc})
in an interactive shell.
@item --login
Make this shell act as if it had been directly invoked by login.
When the shell is interactive, this is equivalent to starting a
login shell with @samp{exec -l bash}.
When the shell is not interactive, the login shell startup files will
be executed.
@samp{exec bash --login}
will replace the current shell with a Bash login shell.
@xref{Bash Startup Files}, for a description of the special behavior
of a login shell.
Equivalent to @option{-l}.
@item --noediting
Do not use the @sc{gnu} Readline library (@pxref{Command Line Editing})
@ -4453,6 +4512,17 @@ positional parameters, starting with @code{$0}.
Force the shell to run interactively. Interactive shells are
described in @ref{Interactive Shells}.
@item -l
Make this shell act as if it had been directly invoked by login.
When the shell is interactive, this is equivalent to starting a
login shell with @samp{exec -l bash}.
When the shell is not interactive, the login shell startup files will
be executed.
@samp{exec bash -l} or @samp{exec bash --login}
will replace the current shell with a Bash login shell.
@xref{Bash Startup Files}, for a description of the special behavior
of a login shell.
@item -r
Make the shell a restricted shell (@pxref{The Restricted Shell}).
@ -4860,14 +4930,15 @@ True if @var{file} exists and is a socket.
True if @var{file} exists and has been modified since it was last read.
@item @var{file1} -nt @var{file2}
True if @var{file1} is newer (according to
modification date) than @var{file2}.
True if @var{file1} is newer (according to modification date)
than @var{file2}, or if @var{file1} exists and @var{file2} does not.
@item @var{file1} -ot @var{file2}
True if @var{file1} is older than @var{file2}.
True if @var{file1} is older than @var{file2},
or if @var{file2} exists and @var{file1} does not.
@item @var{file1} -ef @var{file2}
True if @var{file1} and @var{file2} have the same device and
True if @var{file1} and @var{file2} refer to the same device and
inode numbers.
@item -o @var{optname}
@ -4884,7 +4955,7 @@ True if the length of @var{string} is non-zero.
@item @var{string1} == @var{string2}
True if the strings are equal.
@samp{=} may be used in place of @samp{==}.
@samp{=} may be used in place of @samp{==} for strict @sc{posix} compliance.
@item @var{string1} != @var{string2}
True if the strings are not equal.
@ -4919,7 +4990,7 @@ may be positive or negative integers.
The shell allows arithmetic expressions to be evaluated, as one of
the shell expansions or by the @code{let} builtin.
Evaluation is done in long integers with no check for overflow,
Evaluation is done in fixed-width integers with no check for overflow,
though division by 0 is trapped and flagged as an error.
The operators and their precedence and associativity are the same
as in the C language.
@ -5277,6 +5348,10 @@ can appear in the prompt variables:
A bell character.
@item \d
The date, in "Weekday Month Date" format (e.g., "Tue May 26").
@item \D@{@var{format}@}
The @var{format} is passed to @code{strftime}(3) and the result is inserted
into the prompt string; an empty @var{format} results in a locale-specific
time representation. The braces are required.
@item \e
An escape character.
@item \h
@ -5347,11 +5422,14 @@ expansion, and quote removal, subject to the value of the
If Bash is started with the name @code{rbash}, or the
@option{--restricted}
or
@option{-r}
option is supplied at invocation, the shell becomes restricted.
A restricted shell is used to
set up an environment more controlled than the standard shell.
A restricted shell behaves identically to @code{bash}
with the exception that the following are disallowed:
with the exception that the following are disallowed or not performed:
@itemize @bullet
@item
Changing directories with the @code{cd} builtin.
@ -5379,11 +5457,19 @@ Using the @code{exec} builtin to replace the shell with another command.
Adding or deleting builtin commands with the
@option{-f} and @option{-d} options to the @code{enable} builtin.
@item
Using the @code{enable} builtin command to enable disabled shell builtins.
@item
Specifying the @option{-p} option to the @code{command} builtin.
@item
Turning off restricted mode with @samp{set +r} or @samp{set +o restricted}.
@end itemize
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed
(@pxref{Shell Scripts}), @code{rbash} turns off any restrictions in
the shell spawned to execute the script.
@node Bash POSIX Mode
@section Bash POSIX Mode
@cindex POSIX Mode
@ -5393,6 +5479,9 @@ Starting Bash with the @option{--posix} command-line option or executing
closely to the @sc{posix} 1003.2 standard by changing the behavior to
match that specified by @sc{posix} in areas where the Bash default differs.
When invoked as @code{sh}, Bash enters @sc{posix} mode after reading the
startup files.
The following list is what's changed when `@sc{posix} mode' is in effect:
@enumerate
@ -5538,6 +5627,12 @@ shell function names and definitions.
When the @code{set} builtin is invoked without options, it displays
variable values without quotes, unless they contain shell metacharacters,
even if the result contains nonprinting characters.
@item
When the @code{cd} builtin is invoked in @var{logical} mode, and the pathname
constructed from @code{$PWD} and the directory name supplied as an argument
does not refer to an existing directory, @code{cd} will fail instead of
falling back to @var{physical} mode.
@end enumerate
There is other @sc{posix} 1003.2 behavior that Bash does not implement.
@ -6129,7 +6224,7 @@ A synonym for @code{--with-bash-malloc}.
@item --with-installed-readline[=@var{PREFIX}]
Define this to make Bash link with a locally-installed version of Readline
rather than the version in @file{lib/readline}. This works only with
Readline 4.2 and later versions. If @var{PREFIX} is @code{yes} or not
Readline 4.3 and later versions. If @var{PREFIX} is @code{yes} or not
supplied, @code{configure} uses the values of the make variables
@code{includedir} and @code{libdir}, which are subdirectories of @code{prefix}
by default, to find the installed version of Readline if it is not in
@ -6158,7 +6253,8 @@ compiled and linked, rather than changing run-time features.
@item --enable-largefile
Enable support for @uref{http://www.sas.com/standards/large_file/x_open.20Mar96.html,
large files} if the operating system requires special compiler options
to build programs which can access large files.
to build programs which can access large files. This is enabled by
default, if the operating system provides large file support.
@item --enable-profiling
This builds a Bash binary that produces profiling information to be
@ -6628,7 +6724,8 @@ The @code{trap} builtin (@pxref{Bourne Shell Builtins}) allows a
@code{DEBUG} pseudo-signal specification, similar to @code{EXIT}.
Commands specified with a @code{DEBUG} trap are executed after every
simple command.
The @code{DEBUG} trap is not inherited by shell functions.
The @code{DEBUG} trap is not inherited by shell functions unless the
function has been given the @code{trace} attribute.
The @code{trap} builtin (@pxref{Bourne Shell Builtins}) allows an
@code{ERR} pseudo-signal specification, similar to @code{EXIT} and @code{DEBUG}.

9
doc/builtins.1
View file

@ -1,14 +1,13 @@
.\" This is a hack to force bash builtins into the whatis database
.\" and to get the list of builtins to come up with the man command.
.TH BASH_BUILTINS 1 "2001 October 29" "GNU Bash-2.05a"
.TH BASH_BUILTINS 1 "2001 November 27" "GNU Bash-2.05a"
.SH NAME
bash, :, ., [, alias, bg, bind, break, builtin, case, cd, command, compgen,
complete,
bash, :, ., [, alias, bg, bind, break, builtin, cd, command, compgen, complete,
continue, declare, dirs, disown, echo, enable, eval, exec, exit,
export, fc, fg, for, getopts, hash, help, history, if, jobs, kill,
export, fc, fg, getopts, hash, help, history, jobs, kill,
let, local, logout, popd, printf, pushd, pwd, read, readonly, return, set,
shift, shopt, source, suspend, test, times, trap, type, typeset,
ulimit, umask, unalias, unset, until, wait, while \- bash built-in commands, see \fBbash\fR(1)
ulimit, umask, unalias, unset, wait \- bash built-in commands, see \fBbash\fR(1)
.SH BASH BUILTIN COMMANDS
.nr zZ 1
.so bash.1

249
error.c
View file

@ -29,9 +29,7 @@
#if defined (PREFER_STDARG)
# include <stdarg.h>
#else
# if defined (PREFER_VARARGS)
# include <varargs.h>
# endif
# include <varargs.h>
#endif
#include <stdio.h>
@ -53,7 +51,9 @@ extern int errno;
# include "bashhist.h"
#endif
extern int interactive_shell, interactive;
extern int executing_line_number __P((void));
extern int interactive_shell, interactive, startup_state;
extern char *dollar_vars[];
extern char *shell_name;
#if defined (JOB_CONTROL)
@ -61,6 +61,8 @@ extern pid_t shell_pgrp;
extern int give_terminal_to __P((pid_t, int));
#endif /* JOB_CONTROL */
static void error_prolog __P((int));
/* The current maintainer of the shell. You change this in the
Makefile. */
#if !defined (MAINTAINER)
@ -69,6 +71,22 @@ extern int give_terminal_to __P((pid_t, int));
char *the_current_maintainer = MAINTAINER;
static void
error_prolog (print_lineno)
int print_lineno;
{
int line;
fprintf (stderr, "%s: ", get_name_for_error ());
if (print_lineno && interactive_shell == 0)
{
line = executing_line_number ();
if (line > 0)
fprintf (stderr, "line %d: ", line);
}
}
/* Return the name of the shell or the shell script for error reporting. */
char *
get_name_for_error ()
@ -100,120 +118,6 @@ file_error (filename)
report_error ("%s: %s", filename, strerror (errno));
}
#if !defined (USE_VARARGS)
void
programming_error (reason, arg1, arg2, arg3, arg4, arg5)
char *reason;
{
char *h;
#if defined (JOB_CONTROL)
give_terminal_to (shell_pgrp);
#endif /* JOB_CONTROL */
report_error (reason, arg1, arg2);
#if defined (HISTORY)
if (remember_on_history)
{
h = last_history_line ();
fprintf (stderr, "last command: %s\n", h ? h : "(null)");
}
#endif
#if 0
fprintf (stderr, "Report this to %s\n", the_current_maintainer);
#endif
fprintf (stderr, "Stopping myself...");
fflush (stderr);
abort ();
}
void
report_error (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
if (exit_immediately_on_error)
exit (1);
}
void
parser_error (lineno, format, arg1, arg2, arg3, arg4, arg5);
int lineno;
char *format;
va_dcl
{
char *ename, *iname;
ename = get_name_for_error ();
iname = bash_input.name ? bash_input.name : "stdin";
if (interactive)
fprintf (stderr, "%s: ", ename);
else if (interactive_shell)
fprintf (stderr, "%s: %s: line %d: ", ename, iname, lineno);
else if (STREQ (ename, iname))
fprintf (stderr, "%s: line %d: ", ename, lineno);
else
fprintf (stderr, "%s: %s: line %d: ", ename, iname, lineno);
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
if (exit_immediately_on_error)
exit (2);
}
void
fatal_error (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
exit (2);
}
void
internal_error (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
}
void
internal_warning (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: warning: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, "\n");
}
void
sys_error (format, arg1, arg2, arg3, arg4, arg5)
char *format;
{
fprintf (stderr, "%s: ", get_name_for_error ());
fprintf (stderr, format, arg1, arg2, arg3, arg4, arg5);
fprintf (stderr, ": %s\n", strerror (errno));
}
#else /* We have VARARGS support, so use it. */
void
#if defined (PREFER_STDARG)
programming_error (const char *format, ...)
@ -230,11 +134,7 @@ programming_error (format, va_alist)
give_terminal_to (shell_pgrp, 0);
#endif /* JOB_CONTROL */
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
@ -258,6 +158,10 @@ programming_error (format, va_alist)
abort ();
}
/* Print an error message and, if `set -e' has been executed, exit the
shell. Used in this file by file_error and programming_error. Used
outside this file mostly to report substitution and expansion errors,
and for bad invocation options. */
void
#if defined (PREFER_STDARG)
report_error (const char *format, ...)
@ -269,20 +173,16 @@ report_error (format, va_alist)
{
va_list args;
fprintf (stderr, "%s: ", get_name_for_error ());
error_prolog (1);
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
va_end (args);
if (exit_immediately_on_error)
exit (1);
sh_exit (1);
}
void
@ -296,19 +196,15 @@ fatal_error (format, va_alist)
{
va_list args;
fprintf (stderr, "%s: ", get_name_for_error ());
error_prolog (0);
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
va_end (args);
exit (2);
sh_exit (2);
}
void
@ -322,13 +218,9 @@ internal_error (format, va_alist)
{
va_list args;
fprintf (stderr, "%s: ", get_name_for_error ());
error_prolog (1);
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
@ -349,11 +241,7 @@ internal_warning (format, va_alist)
fprintf (stderr, "%s: warning: ", get_name_for_error ());
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
@ -370,18 +258,16 @@ sys_error (format, va_alist)
va_dcl
#endif
{
int e;
va_list args;
fprintf (stderr, "%s: ", get_name_for_error ());
e = errno;
error_prolog (0);
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, ": %s\n", strerror (errno));
fprintf (stderr, ": %s\n", strerror (e));
va_end (args);
}
@ -408,7 +294,7 @@ parser_error (lineno, format, va_alist)
char *ename, *iname;
ename = get_name_for_error ();
iname = bash_input.name ? bash_input.name : "stdin";
iname = yy_input_name ();
if (interactive)
fprintf (stderr, "%s: ", ename);
@ -419,11 +305,7 @@ parser_error (lineno, format, va_alist)
else
fprintf (stderr, "%s: %s: line %d: ", ename, iname, lineno);
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
@ -431,7 +313,7 @@ parser_error (lineno, format, va_alist)
va_end (args);
if (exit_immediately_on_error)
exit (2);
sh_exit (2);
}
#ifdef DEBUG
@ -448,11 +330,7 @@ itrace (format, va_alist)
fprintf(stderr, "TRACE: pid %ld: ", (long)getpid());
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (stderr, format, args);
fprintf (stderr, "\n");
@ -486,11 +364,7 @@ trace (format, va_alist)
fprintf(tracefp, "TRACE: pid %ld: ", (long)getpid());
#if defined (PREFER_STDARG)
va_start (args, format);
#else
va_start (args);
#endif
SH_VA_START (args, format);
vfprintf (tracefp, format, args);
fprintf (tracefp, "\n");
@ -500,9 +374,15 @@ trace (format, va_alist)
fflush(tracefp);
}
#endif /* USE_VARARGS */
#endif /* DEBUG */
/* **************************************************************** */
/* */
/* Common error reporting */
/* */
/* **************************************************************** */
static char *cmd_error_table[] = {
"unknown command error", /* CMDERR_DEFAULT */
"bad command type", /* CMDERR_BADTYPE */
@ -531,3 +411,26 @@ command_errstr (code)
return (cmd_error_table[code]);
}
#ifdef ARRAY_VARS
void
err_badarraysub (s)
const char *s;
{
report_error ("%s: bad array subscript", s);
}
#endif
void
err_unboundvar (s)
const char *s;
{
report_error ("%s: unbound variable", s);
}
void
err_readonly (s)
const char *s;
{
report_error ("%s: readonly variable", s);
}

11
error.h
View file

@ -50,12 +50,19 @@ extern void internal_error __P((const char *, ...)) __attribute__((__format__ (
/* Report an internal warning. */
extern void internal_warning __P((const char *, ...)) __attribute__((__format__ (printf, 1, 2)));
/* Debugging function, not enabled in released version. */
extern void itrace __P((const char *, ...)) __attribute__ ((__format__ (printf, 1, 2)));
/* Report an error having to do with command parsing or execution. */
extern void command_error __P((const char *, int, int, int));
extern char *command_errstr __P((int));
/* Debugging function, not enabled in released version. */
extern void itrace __P((const char *, ...)) __attribute__ ((__format__ (printf, 1, 2)));
/* Specific errror message functions that eventually call report_error or
internal_error. */
extern void err_badarraysub __P((const char *));
extern void err_unboundvar __P((const char *));
extern void err_readonly __P((const char *));
#endif /* !_ERROR_H_ */

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