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699 Commits

Author SHA1 Message Date
dholland
87e87a1f8c fix typo 2010-01-01 18:09:16 +00:00
christos
e3fc7d5ba9 use .ORDER for rules that create multiple files. 2009-12-14 05:13:38 +00:00
uebayasi
b79e178285 Rewrite file generation rules using ${GENCMD}. No functional changes intended. 2009-12-11 08:39:42 +00:00
uebayasi
58b17edd41 Define dependencies of arith.[ch] on arith.y. 2009-12-07 16:22:41 +00:00
tsutsui
49ee47d09d Use %zu in printf format for size_t value. 2009-11-27 10:50:04 +00:00
gson
dddcd98c78 Removed return statement in parser action that caused a memory leak with 
the new yacc, making "sh MAKEDEV -MM init" consume 27 MB of virtual memory
with the result that NetBSD could no longer be installed on a 32 MB system.
 2009-11-13 13:49:09 +00:00
christos
5dfc26d510 use flex options instead of #defines 2009-10-29 14:21:40 +00:00
christos
10aa8c24e9 only for when trap if we are going to exit. 2009-10-07 18:12:11 +00:00
christos
40ab82d3c3 fix regression exit1: Don't exec the last command in a subshell if it has 
trap[0] (trap EXIT) set. Fork instead to give the shell a chance to execute
the trap when it is done.
 2009-10-06 20:05:10 +00:00
apb
db8f79df3d Make this slightly more portable; it has to run on arbitary host 
platforms at build time.  Previousy, some shells were confused by
some of the "[ ... ]" tests.
 2009-10-06 19:56:58 +00:00
joerg
f29cf7b612 Make indentation consistent. 2009-05-26 07:30:51 +00:00
drochner
0fa7059102 define YY_NO_INPUT where appropriate, from Kurt J. Lidl per PR misc/41160 2009-04-20 16:05:29 +00:00
wiz
7d6100a52d Bump date for previous. 2009-03-29 08:54:10 +00:00
mrg
fcc023545e - add new RLIMIT_AS (aka RLIMIT_VMEM) resource that limits the total 
address space available to processes.  this limit exists in most other
modern unix variants, and like most of them, our defaults are unlimited.
remove the old mmap / rlimit.datasize hack.

- adds the VMCMD_STACK flag to all the stack-creation vmcmd callers.
it is currently unused, but was added a few years ago.

- add a pair of new process size values to kinfo_proc2{}. one is the
total size of the process memory map, and the other is the total size
adjusted for unused stack space (since most processes have a lot of
this...)

- patch sh, and csh to notice RLIMIT_AS.  (in some cases, the alias
RLIMIT_VMEM was already present and used if availble.)

- patch ps, top and systat to notice the new k_vm_vsize member of
kinfo_proc2{}.

- update irix, svr4, svr4_32, linux and osf1 emulations to support
this information.  (freebsd could be done, but that it's best left
as part of the full-update of compat/freebsd.)


this addresses PR 7897.  it also gives correct memory usage values,
which have never been entirely correct (since mmap), and have been
very incorrect since jemalloc() was enabled.

tested on i386 and sparc64, build tested on several other platforms.

thanks to many folks for feedback and testing but most espcially
chuq and yamt for critical suggestions that lead to this patch not
having a special ugliness i wasn't happy with anyway :-)
 2009-03-29 01:02:48 +00:00
roy
9fa1d120a0 el_gets now sets el_len to -1 on error so we can distinguish 
between a NULL string and an error.
This fixes sh from exiting with libedit now allowing EINTR to return.
We may need to expand this to an errno check in the future.
 2009-03-10 21:21:11 +00:00
joerg
fdf2963413 Explicitly escape -- as it is not an argment to the Cm macro. 2009-03-10 15:14:28 +00:00
joerg
048b505ac7 Don't use .Xo/.Xc to workaround ancient macro argument limit. 2009-03-10 14:18:52 +00:00
joerg
997634fe14 Fix preamble to match order set out by mdoc(7). Discussed with wiz. 2009-03-09 19:24:26 +00:00
lukem
46b57afcf7 Default to WARNS=4 (except for rcp & ksh) 2009-02-14 08:31:13 +00:00
christos
8623c59aca Revert previous commit that fixes PR/36079 (shell misses exit trap), because 
the fix causes $! to point to the wrong process in pipelines, which is worse.
 2009-01-19 19:47:11 +00:00
lukem
c6144e484f fix -Wsign-compare issues 2009-01-18 00:24:29 +00:00
christos
3957d0cafc rlim_t will be unsigned as TOG mandates. 2008-12-28 19:53:37 +00:00
christos
97f12feac9 don't free other jobs when we are specifically using the wait built-in. 2008-12-21 17:16:11 +00:00
christos
271febebf6 use EXP_CASE only when trimming and unquoted. 2008-12-21 17:15:09 +00:00
christos
ae1cc09549 PR/36079: M. Levinson: Disable the optimization of not forking for the last 
command in a subshell, otherwise we miss the exit trap.
 2008-12-21 03:15:32 +00:00
christos
9ac082db6c PR/35055: Wada Keiji: wait did not keep the status of terminated jobs as 
expected.
 2008-12-21 00:19:59 +00:00
christos
26edf84a4b PR/36954: Roland Illig: don't eat backlash escapes in variable patterns. 
Makes ${line%%\**} work.
 2008-12-20 20:36:44 +00:00
yamt
8277de5576 document "EXIT" pseudo signal. 2008-12-11 04:34:45 +00:00
snj
976326ad53 Some spelling fixes from VaX#n8 in PR bin/23812. 2008-11-15 17:01:38 +00:00
christos
c8877ef31c and if you don't succeed twice, try again. 2008-11-08 00:14:05 +00:00
christos
440e6c6264 Try a different fix for PR/11317: Don't ignore errors in list(). 2008-11-07 15:18:11 +00:00
christos
2afd855bd9 Break PR/11317 again. The counting parentheses fix does not handle case 
statements properly. Fixes PR/39873.
 2008-11-07 15:08:43 +00:00
christos
9fd1d5af01 PR/11317: Hubert Feyrer: Recognize mismatched parentheses inside old style 
command substitution.
 2008-11-05 22:04:43 +00:00
christos
bc4eb9bdd7 show better quoting output for sh -x, from Aleksey Cheusov 2008-10-31 14:38:42 +00:00
apb
89799ead73 Pass SED=${TOOL_SED:Q} in the environment to scripts run during the build. 2008-10-25 22:23:55 +00:00
apb
125b7c8cbb In shell scripts run during the build, add a SED variable, defaulting 
to "sed".  SED=${TOOL_SED:Q} should be passed in the environment to
override this.
 2008-10-25 22:18:15 +00:00
apb
9577284633 Don't try to remove trailing newlines from shell variables via 
constructs like ${var%$nl}.  Apparently this allows the Ubuntu Linux
/bin/sh (dash) to be used as a host shell during the build.
Patch from PR 39786 by Andy Shevchenko.
 2008-10-23 20:21:57 +00:00
apb
cd5c0f944d In shell scripts invoked during a build, and in crunchgen, use ${AWK} 
instead of plain "awk".  The Makefiles that invoke these scripts
or programs will pass AWK=${HOST_AWK:Q}.
 2008-10-19 22:10:04 +00:00
apb
96230fab84 Use ${TOOL_AWK} instead of ${AWK} or plain "awk" in make commands. 
Pass AWK=${TOOL_AWK:Q} to shell scripts that use awk.
 2008-10-19 22:05:19 +00:00
dholland
7fb5a8c68e The field width passed for a %.*s printf format is supposed to be int, not 
ptrdiff_t; on 64-bit platforms the latter will be too wide.
Adjust accordingly.
 2008-10-16 17:58:29 +00:00
dholland
72c2627f1f Wrap declaration of a STATIC function that's only conditionally defined 
in a suitable ifdef, so things still compile if STATIC is defined as
"static", which is for some reason not the default.
 2008-10-16 15:36:23 +00:00
dholland
744c8edc4b Wrap declaration of a STATIC function that's only conditionally defined 
in a suitable ifdef, so things still compile if STATIC is defined as
"static", which is for some reason not the default.

(In the long run STATIC should go away - it might have once been a
portability hack but now definitely serves no purpose.)
 2008-10-16 15:31:05 +00:00
dholland
e54c6daca4 Remove unused global variables 2008-10-16 14:55:28 +00:00
dholland
0faa1734e3 Use "extern" properly for referencing globals defined in other modules. 
Now builds cleanly with -warn-common.
 2008-10-16 14:36:40 +00:00
dholland
30a1416240 output.c output.h: expose OUTPUT_ERR (flag for an exposed flags variable) 
bltin.h: support ferror()
echo.c: use ferror() to fail on output write errors

Another piece of PR bin/39574.
 2008-10-12 01:40:37 +00:00
christos
8c54d84110 Fix here documents that end abruptly without NL before EOF. 
(Andy Shevchenko)
 2008-08-23 10:05:52 +00:00
lukem
2fe2731d3f Remove the \n and tabs from the __COPYRIGHT() strings. 2008-07-20 00:52:39 +00:00
tron
9cae530b67 Revert revisions 1.91 and 1.92. The POSIX spec about the correct behaviour 
is contradictory at best. And these changes seem to cause more problems
that they are worth.
 2008-05-26 14:55:17 +00:00
tron
4d6f948f7a Fix two more cases of bad handling of "set -e": 
- false && false
- false || false
 2008-05-24 22:24:32 +00:00
tron
c2987416cd Fix another problem with "set -e": "! true" should terminate the shell. 2008-05-24 19:06:43 +00:00
tron
35fbf8dd7f Port revision 1.44 of "src/bin/sh/eval.c" from FreeBSD to fix PR bin/38584. 
Reviewed by Michael van Elst.
 2008-05-24 17:12:53 +00:00
martin
3028e483e4 Convert to new 2 clause license 2008-04-29 06:53:00 +00:00
christos
76560beef5 Detect unmatched quotes inside old style command substitution. 
echo `"`
 2008-04-25 17:32:31 +00:00
apb
cd12700971 If SHELL_BUILTIN is defined (as will be the case when building external 
builtins such as the printf command), then hide a few declarations.

This allows the shell to build again, fixing a problem with
"error" being declared as a function here, and as a variable in
.../usr.bin/printf/printf.c.
 2008-03-29 09:58:00 +00:00
apb
d6d9ccc8ad * define SHELL_BUILTIN, which other headers may use to hide some of their 
symbols if appropriate.  For example, error.h will use it to hide
  declarations that should not be seen by external builtins such as printf.
* The shell's outfmt() function returns void, but the standard fprintf()
  function returns int.  Similarly for several other functions that are
  redefined via macros in bltin.h.  Add a _RETURN_INT macro to do the
  necessary conversion.
* Delete some declarations that appear in error.h.
* Add comments on some #else/#endif lines.
 2008-03-29 09:55:40 +00:00
apb
074a931bf5 Remove trailing ';' in definitions of out1c and out2c macros. 2008-03-29 09:49:52 +00:00
dsl
01709217fc Generate ANSI functions. 
Just indent the code by a single tab - no need to compare against the
C program generated version any more.
 2008-02-27 21:56:14 +00:00
dsl
b63023e666 Change spaces to tabs for consistency with adjacent lines. 2008-02-27 21:55:07 +00:00
matt
4498b1fe25 Fix inconsistent definitions 2008-02-15 17:26:06 +00:00
joerg
f04ccd71b4 Set unique mode for the history, so that repeating a command doesn't 
spam the history.
 2008-02-13 12:57:16 +00:00
msaitoh
899c734b12 Conform to XCU Section 2.8.2 (Exit Status for Commands) 2008-01-21 06:43:03 +00:00
dogcow
90ee124aaf This should have been all on one line anyway - and hey, it fixes my build 
issue.
 2007-12-18 07:25:00 +00:00
perry
8b0f9554ff convert __attribute__s to applicable cdefs.h macros 2007-12-15 19:44:37 +00:00
lukem
bcf893f432 use __RCSID() 2007-12-12 22:55:42 +00:00
christos
2554aff24b PR/36531: Greg A. Woods: another very helpful DEBUG TRACE() call for execve() 
failures in /bin/sh
 2007-06-24 18:36:23 +00:00
christos
546dff6580 PR/36533: Greg A. Woods: minor doc fixes for sh(1) 2007-06-24 17:57:56 +00:00
dsl
8da3353686 Fix sh -c 'true && ! true | false; echo $?' 
Add some more TRACE((...)) calls to aid such debugging.
Fixes PR bin/36435
Clearly no one tried this test when the changes of rev 1.31 and 1.44 were done!
 2007-06-07 20:57:59 +00:00
apb
faafdc7e21 Document that shell arithmetic now uses intmax_t. Document that 
variables in shell arithmetic don't need "$" signs.
 2007-03-25 06:56:43 +00:00
apb
1a20cbd95e WARNS=4 2007-03-25 06:30:37 +00:00
apb
91ce988bec Make /bin/sh use intmax_t (instead of int) for arithmetic in $((...)). 2007-03-25 06:29:26 +00:00
rillig
9da5e43f4d Since interpreting ELF binaries as shell scripts is not very useful, and 
since the current error message is less than helpful, improve it.
 2007-02-15 12:02:59 +00:00
christos
30760cbdc7 PR/35410: Valeriy E. Ushakov: /bin/sh mishandles shell function definitions 
with function names that are not plain words
1. remove the escape annotations from the function name.
2. check if the function has a valid name before storing it.
 2007-01-13 18:58:26 +00:00
christos
a54fe38a0d fix a volatile variable; from Anon Ymous 2006-12-18 00:37:33 +00:00
wiz
5c056f6785 s/apparant/apparent/, from Zafer. 2006-11-24 22:54:47 +00:00
christos
272937609b sprinkle volatile. 2006-10-16 00:36:19 +00:00
christos
ab28bede4c Prefix "Syntax Error" with the program name, if the command name is not 
available. At least this way we get an idea of what program gives us the
message.
 2006-10-04 15:00:38 +00:00
dsl
1719403bf2 Fix typo, update date. 
Fixes PR/34472
 2006-09-04 20:30:36 +00:00
dsl
c58b829dda Set the 'not a parameter' flag when we skip initial whitespace. 
Otherwise:
    ./sh -c 'x=" "; for a in $x; do echo a${a}a; done'
is processed as a single empty parameter (instead of no parameters).
Should fix the breakage I introdiced in rev 1.75 and PR/34256 and PR/34254
 2006-08-22 18:11:42 +00:00
dsl
413b7762c2 Rework the code changes from revisions 1.69, 1.70 and 1.74 so that the code 
behaves correctly.
As far as I can tell, "x$@y" now expands correctly, as does IFS=:; set -$IFS.
Fixes PR/33472 (again) and PR/33956
 2006-08-21 21:30:14 +00:00
christos
a8b3562160 PR/33775: YAMAMOTO Takashi: /bin/sh doesn't accept "(" before case patterns 2006-06-20 15:57:44 +00:00
dsl
0e765f005a When expanding "$@" add a \0 byte after the last argument (as well as all 
the earlier ones) so that a separator is added before it when it is empty.
This wasn't needed before a recent change that chenged the behaviour of
trailing whitespace IFS characters.
Fixed PR/33472
 2006-05-20 13:57:27 +00:00
christos
e80f354dab Coverity CID 3384: Don't close -1. 2006-05-13 19:47:22 +00:00
mrg
084c052803 quell GCC 4.1 uninitialised variable warnings. 
XXX: we should audit the tree for which old ones are no longer needed
after getting the older compilers out of the tree..
 2006-05-10 21:53:14 +00:00
simonb
15dc85722d Make the change for bin/31548 to set $PWD on shell startup non-fatal if 
the current directory doesn't exist.
 2006-05-04 11:16:53 +00:00
snj
a640fe8c43 It's "its." 2006-04-24 19:00:29 +00:00
snj
bf5ceaae16 It's "its." 2006-04-24 18:00:53 +00:00
christos
da09d1a838 PR/33281: Martin J. Laubach: Prevent core-dump on "echo abc | { }". bash 
prints and error and ksh prints nothing. We go the ksh way.
 2006-04-18 14:44:05 +00:00
christos
3e359756c9 Coverity CID 620: Remove dead code. 2006-03-18 05:25:56 +00:00
christos
f6828859fa Coverity CID 890: Possible NULL pointer deref. 2006-03-18 05:23:08 +00:00
christos
169a269417 Coverity CID 1329: Possible NULL deref. 2006-03-18 05:17:36 +00:00
christos
df8cbb182e Coverity CID 2479: Clarify confusion about uninitialized variable in the 
presence of setjmp/vfork.
 2006-03-17 17:20:47 +00:00
rumble
2174dda221 Handle asprintf failing to allocate. 2006-03-17 14:43:11 +00:00
aymeric
d5d0c11532 Make the -s flag of fc work correctly. Ensure that only one command is specified 
and ensure that we break out of the loop after executing it.
With the previous code, because the re-executed command was added to the
history, it would think that it still had to execute it, leading to an infinite
loop.

The last thing which differs from ksh is that we get the "fc -s " command into
the history, but this is actually rather a feature in my humble opinion.

To test:
$ echo hello
$ fc -s ec
<infinite loop or correct behaviour>
 2006-03-06 00:09:22 +00:00
garbled
6ac601d8c4 Add error printing for ENAMETOOLONG. Partially addresses PR bin/13850 . 
The actual bug mentioned in that PR no longer exists, but it does cause:
~~~~~: error 63
Which this fix cleans up.
 2006-01-02 19:10:33 +00:00
dsl
ea2078818f TOG require that 'set +o' output the options in a form suitable for 
restoring them - make it so.
 2005-12-13 17:44:18 +00:00
dsl
e60beff86b Don't change the name of the directory we are going to 'cd' to just because 
we decide to remove a leading "./" when deciding whether to print the name.
Stops 'cd .//tmp' ending up the same as 'cd /tmp'.
Fixes PR/30735
 2005-11-26 21:44:43 +00:00
christos
8d6ffce2ad PR/31548: Alexander Rigbo: $PWD not set when shell starts up, before pwd 
or cd get executed.
 2005-10-10 21:14:42 +00:00
christos
c05266af8a fix setmode error handling. 2005-10-01 20:23:54 +00:00
tv
964f98e703 Make slightly more portable without extra conditionals needed: 
- Use getpgrp() rather than getpgid(0).
  (getpgrp() is already used elsewhere in this same file.)

- Use waitpid(-1, a, b) rather than wait3(a, b, NULL).
 2005-09-30 18:57:55 +00:00
wiz
2ea3362a10 In mdoc, use .Pp for new paragraphs, not .br. 2005-09-10 22:09:43 +00:00