Commit Graph

364 Commits

Author SHA1 Message Date
Brian Feldman
7cde774d15 Implement ulimit -b for RLIMIT_SBSIZE. 1999-10-09 20:56:06 +00:00
Sheldon Hearn
49e11e3a66 Mdoc cleanup, with a few grammar cleanups on the side.
Reviewed by:	mpp
1999-10-07 13:56:43 +00:00
Sheldon Hearn
e6d3cf2648 Correct some hard sentence breaks. Only those surrounding the previous
commit and those which cause ugly nroff output have been fixed, since
the purpose of the style guideline which they contravene is to reduce
the sizes of deltas.

Reported by:	bde
1999-09-14 11:46:04 +00:00
Sheldon Hearn
c644db6aa2 Improve shell documentation:
* Consistently misspell built-in as builtin.

* Add a builtin(1) manpage and create builtin(1) MLINKS for all shell
  builtin commands for which no standalone utility exists.  These MLINKS
  replace those that were created for csh(1).

* Add appropriate xrefs for builtin(1) to the csh(1) and sh(1) manpages,
  as well as to the manpages of standalone utilities which are supported
  as shell builtin commands in at least one of the shells. In such
  manpages, explain that similar functionality may be provided as a
  shell builtin command.

* Improve sh(1)'s description of the cd builtin command. Csh(1) already
  describes it adequately. Replace the cd(1) manpage with a builtin(1)
  MLINKS link.

* Clean up some mdoc problems: use Xr instead of literal "foo(n)"; use
  Ic instead of Xr for shell builtin commands.

* Undo English contractions.

Reviewed by:	mpp, rgrimes
1999-09-08 15:40:46 +00:00
Sheldon Hearn
ccbd308159 Revert to using .Xr for builtins. The cross-references don't work now,
but that doesn't mean that they will never work.

Requested by:	mpp, rgrimes
1999-08-31 12:44:52 +00:00
Sheldon Hearn
6b15476ec9 Clean-up:
Fix grammar and spelling nits.
	Use .Dq and .Qq where appropriate.
	Divorce trailing punctuation from quoted elements.
	Use .Dq instead of .Xr for builtins.
	Remove trailing whitespace and blank lines.

PR:	13340
1999-08-30 10:13:04 +00:00
Peter Wemm
2a4562393f $Id$ -> $FreeBSD$ 1999-08-27 23:15:48 +00:00
Thomas Gellekum
8f0561cc42 Make the behaviour of `read -e', ie. treating backslashes as special,
the default. Add -r option for the read builtin to reverse this.

PR:		13274
Reviewed by:	cpiazza, hoek, sheldonh
1999-08-26 08:16:27 +00:00
Sheldon Hearn
58aa6f74a2 Fix handling of the cd command inside evaluations. It was changing PWD,
which it should not do.

PR:	12578
Reported by:	Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
Submitted by:	Niall Smart <niall@pobox.com>
1999-07-19 11:00:33 +00:00
Kris Kennaway
46be34b902 Various spelling/formatting changes.
Submitted by: Philippe Charnier <charnier@xp11.frmug.org>
1999-05-08 10:22:15 +00:00
Warner Losh
426e9c1dcc First set of fixes to keep egcs happy. These include {} around single
statement if blocks[*] when the else could be ambiguous, not defaulting
to int type and removal of some unused variables.

[*] This is explicitly allowed by style(9) when the single statement
spans more than one line.

Reviewed by: obrien, chuckr
1999-04-25 21:13:34 +00:00
Martin Cracauer
57b2932a14 Next approach to make loops in interactive interruptable.
PR:		bin/9173
1999-04-21 11:52:39 +00:00
Masafumi Max NAKANE
120ac26db8 Typo fix. 1999-04-19 18:48:26 +00:00
Martin Cracauer
466b673d7e Remove my temporary detection for PR 7059, Tor Egge fixed this bug.
PR:		7059
1999-04-13 12:43:55 +00:00
Tor Egge
c4e5a8a8b9 During variable expansion, the internal representation of the expression
might be relocated.  Handle this case.
PR:		7059
1999-04-13 04:13:09 +00:00
Martin Cracauer
4c1b08b3bb Fix typo in source-explaining comment. 1999-04-12 15:23:27 +00:00
Martin Cracauer
9d5efc1507 Add a guarded abort() for the problem in PR bin/7059 (no fix so far,
this is hairy).

Reformat this file to comply to style(9). It had mixed styles before.

PR:		bin/7059
1999-04-12 14:23:36 +00:00
Tor Egge
8b220a611d When a variable expansion is enclosed in double quotes, the internal
representation of the expression is quoted.  Take care of this when
doing pattern matching in conjunction with trimming.

	#!/bin/sh
	c=d:e; echo "${c%:e}"

PR:		NetBSD PR#7231
Noticed by:	Havard Eidnes <Havard.Eidnes@runit.sintef.no>
1999-04-09 15:23:48 +00:00
Martin Cracauer
4487495433 In interactive shells, break loops to the topmost level when a child
is killed by a signal.

(In non-interactive shells - that means a shellscript - the shell just
exits, this was already working)

PR:		bin/9173
1999-04-03 12:55:51 +00:00
Martin Cracauer
b8ec435e6b Implement -a flag. A test shell script can be found at
http://www.cons.org/cracauer/download/sh-interrupt/testsuite/test_export.sh
The PR also had test cases the new version passes.

Fix typo in comment.

PR:		bin/1030
1999-04-03 11:41:46 +00:00
Martin Cracauer
2870f7a83c -T was missing in the synopsis line.
Submitted by:	BDE
1999-04-02 09:28:00 +00:00
Martin Cracauer
c1c72a3c2a The immediate execution of traps I introduced in September 1998 (to
make /etc/rc interruptible in cases when programs hang with blocked
signals) isn't standard enough.

It is now switched off by default and a new switch -T enables it.

You should update /etc/rc to the version I'm about to commit in a few
minutes to keep it interruptible.
1999-04-01 13:27:36 +00:00
Brian Somers
71405fb6b3 sh doesn't support <> redirections.
PR:	7325
1999-03-31 21:02:01 +00:00
Joseph Koshy
c83e7c5041 Add references to test(1) and expr(1). 1998-12-18 03:51:18 +00:00
Warner Losh
a207266e91 Free memory from setmode.
Obtained from: OpenBSD
1998-12-16 04:45:35 +00:00
Bruce Evans
3b53d3803e Fixed warnx format errors in printf and csh, and snprintf format errors
in sh, by using separate macros for the 1, 2 and 3-arg calls to warnx.
(The 3-arg warnx macro in sh/bltin/bltin.h used to require bogus dummy
args.)
1998-12-07 12:14:04 +00:00
Bill Fumerola
0bd063bcd3 Fix typo. "If the an entry" --> "If an entry"
PR:		docs/8140
Submitted by:	Sue Blake <sue@vedanix.welearn.com.au>
1998-12-02 23:20:11 +00:00
Tor Egge
5557a02a60 Be more consistent with handling of quote mark control character.
Don't output double-quotes inside variable expansion/arithmetic
expansion region in here-documents.  When leaving the arithmetic
expansion syntax mode, adjust the dblquote flag according to
previous syntax, in order to avoid splitting of quoted variables.
1998-09-13 19:24:57 +00:00
Martin Cracauer
9bbfa41541 Narrow down conditions to break wait() to process traps.
Improve comments.
1998-09-10 22:09:11 +00:00
Martin Cracauer
e6ac45dde2 Fix an inefficiency I introduced in my last commit.
Include "expand.h" vom memalloc.c to pull function declartion into scope
1998-09-10 14:51:06 +00:00
Martin Cracauer
135421ddbf If traps are set, they are now executed even when a signal-blocking
foreground child is running. Formerly, traps were exceuted after the
next child exit.

The enables the user to put a breaking wrapper around a blocking
application:
  (trap 'echo trap ; exit 1' 2; ./pestyblocker; echo -n)

The "echo -n" after the child call is needed to prevent sh from
optimizing the trap-executing shell away. I'm working on this.
1998-09-08 13:16:52 +00:00
Tor Egge
6f47734fd7 Better handling of word splitting. Don't record the same region
multiple times when performing nested variable expansion, and
preserve some quoting information in order to avoid removing
apparently empty expansion result.
1998-09-06 21:13:09 +00:00
Tor Egge
37f0a6708e Don't blindly eliminate `..' and the previous pathname component.
PR:		2541
Obtained from:	NetBSD
1998-09-06 21:01:57 +00:00
Martin Cracauer
1f40b47b46 Improve bookkeeping of in_waitcmd and style fixes.
Submitted by:	Bruce Evans
1998-08-25 09:33:34 +00:00
Martin Cracauer
40d009a717 Re-enable killing childs with SIGQUIT. Spotted by Bruce Evans. 1998-08-25 08:49:47 +00:00
Martin Cracauer
a1c7435ae3 Got two volatile sig_atomic_t and int mixed up. Spotted by Gary Palmer. 1998-08-24 19:15:48 +00:00
Martin Cracauer
7a8e920bb9 Do not exit on SIGINT in non-interactive shells, fixes PR 1206,
i.e. this makes emacs usable from system(3). Programs called from
shellscripts are now required to exit with proper signal status. That
means, they have to kill themself. Exiting with faked numerical exit
code is not sufficient.

Exit with proper signal status if script exits on signal.

Make the wait builtin interruptable, both with and without traps set.

Use volatile sig_atomic_t where (and only where) appropriate.

(Almost) fix printing of newlines on SIGINT.

Make traps setable from trap handlers. This is needed for shellscripts
that catch SIGINT for cleanup work but intend to exit on it, hance
have to kill themself from a trap handler. I.e. mkdep.

While I'm at it, make it -Wall clean. -Wall is not enabled in
Makefile, since vararg warnx() macro calls in usr.bin/printf/printf.c
are not -Wall-able.
PR:		1206
Obtained from:	Basic SIGINT fix from Bruce Evans
1998-08-24 10:20:37 +00:00
Joseph Koshy
fab2680594 Document behaviour of "-" and "--" on the command line.
PR: docs/5399
1998-07-30 04:47:56 +00:00
Bruce Evans
3c3472fb32 Added a `build-tools' target for internal tools.
Removed explicit dependencies of foo.o on foo.c.  These were mainly
placeholders for comments about missing dependencies of tools objects
on headers.  This problem needs to be handled more generally.
1998-07-07 01:06:58 +00:00
Philippe Charnier
3d7b5b9302 Add rcsid. Spelling. 1998-05-18 06:44:24 +00:00
Bruce Evans
3ef22d496d Backed out previous backout. Put y.tab.h back in SRCS. 1998-05-06 15:33:59 +00:00
Bruce Evans
e43e36af7d Backed out previous commit. It was tested, but not for the case where
a separate object tree doesn't exist.  Crufty makefiles will have to
put y.tab.h in SRCS so that we know not to create foo.h from foo.y.
1998-05-05 07:36:55 +00:00
Bruce Evans
b681d90662 Fixed races in `make -jN' using new yacc rules. 1998-05-04 20:09:06 +00:00
Martin Cracauer
686ed44763 When calling a shell function, remember whether exit status is tested.
This is needed for the '-e' option. See the PR for more details.
PR:		6047
Reviewed by:	PR submitter, silence on review request.
1998-05-04 07:24:10 +00:00
Bruce Evans
cddfa6c981 Backed out most of rev.1.19 (explicit dependencies of object files
on generated headers).  This is now handled generally in bsd.prog.mk.
1998-04-26 16:12:23 +00:00
John Polstra
6466945a67 Explicitly describe the rules the shell uses to search for a file
sourced by the "." command.
1998-02-12 01:23:11 +00:00
Martin Cracauer
8624242ab8 Back out my previous attempt to fix SIGINT/SIGTERM behaviour 1998-02-06 23:50:39 +00:00
Martin Cracauer
9dee16dba6 Fix handling of SIGINT/SIGQUIT for foreground subprocesses. Most
urgent need is when you run sh around a program that intentionally
uses SIGQUIT/SIGINT for asynchronous events, i.e. $EDITOR started from
system(2), like many mailers do. This fixes PR bin/1206 and possibly
bin/4241.

The solution committed has been tested for a large number of possible
cases (see recent discussion on cvs-committers). I completed a make
world, made sure 'make world' is interruptable and used the changed
/bin/sh as a login shell all day, including job control and using
SIGQUIT-catching programs (to write this message :-).

PR:		bin/1206
Reviewed by:	discussion on cvs-commiters
1998-02-06 18:14:26 +00:00
Steve Price
ee7dc4169c Correct a bogon in an example.
PR:		5415
Submitted by:	Sergei S. Laskavy <laskavy@pc759.cs.msu.su>
1998-01-02 19:23:05 +00:00
Alexander Langer
3344c3521c Added $Id$. 1997-12-29 00:00:10 +00:00
Eivind Eklund
007d33500e Remove simultaneous include of <sys/param.h> and <sys/types.h>.
Reorder includes to be alphabetical some places since I already was in
here.
1997-12-10 22:18:54 +00:00
John Polstra
c351e0897e Document the exit status for a command that was terminated by a
signal.
1997-11-12 04:32:50 +00:00
Bruce Evans
28701136f7 Fixed some type and value mismatches. setsignal() returned a bogusly
cast value that was always ignored.  Rev.1.9 of trap.c made this
more bogus by returning a semantically different value after calling
siginterrupt().  Avoid these problems by not returning a value.
1997-11-10 11:32:24 +00:00
Andrey A. Chernov
8dd81503df 1) Fix longstanding bug:
trap 'echo xxx' 1 2 3 15
	read x
is not interrupted by ^C (due to restartable read syscall) and must be
interrupted per POSIX
Worse case:
	read -t 5 x
hangs forever after ^C pressed (supposed to timeout after 5 secs)
Fixed by adding siginterrupt(signo, 1) after catch handler installed

2) Do not reinstall sighandler immediately after it is called,
BSD do it for us
1997-11-05 23:33:58 +00:00
Jordan K. Hubbard
97fe7f477f Changes to support full make parallelism (-j<n>) in the world
target.
Reviewed by:	<many different folks>
Submitted by:	Nickolay N. Dudorov" <nnd@nnd.itfs.nsk.su>
1997-10-05 09:40:24 +00:00
Mike Smith
afa53c8df7 Add the '-t timeout' option to the 'read' builtin. This allows the
'read' command to return an error if the user fails to supply any
input withink a given time period.  The behaviour of this option is
similar to that of the like-named option in ksh93.

Reviewed by:	joerg
1997-09-29 15:15:16 +00:00
Wolfram Schneider
c7a197e1d8 PR: docs/4449
The -c flag is not documented in the sh(1) manapge.

Submitted by: adrian@virginia.edu
1997-09-13 17:40:00 +00:00
Bruce Evans
18f368f2e4 Restored clobbered parts of rev.1.15 (build intermediate object files
for tools).
1997-08-25 19:50:01 +00:00
Steve Price
ead152eb86 Make all status values an integral type and use
pid_t when referring to process IDs.
1997-08-18 02:53:20 +00:00
Jordan K. Hubbard
f2d0ae8518 Back out previous fix - this bug's got diplomatic immunity as a registered
political issue.
1997-06-19 17:57:06 +00:00
Jordan K. Hubbard
fc0eef9f89 >Number: 3780
>Category:       bin
>Synopsis:       WEXITSTATUS() may return nagative value, which causes sh to generate bad $?

PR:		3780
Submitted by:	sanewo@ba2.so-net.or.jp
1997-06-19 15:14:01 +00:00
Andrey A. Chernov
ea1376dfbb Now [^abc] means the same as [!abc] like bash and *csh already does 1997-06-06 23:04:33 +00:00
Steve Price
00fc54b03c Make sh(1) less aware of the bit fields returned by wait by
using the WIF* macros in sys/wait.h.

PR: bin/3668
Submitted by:	dholland@eecs.harvard.edu
1997-05-24 21:04:55 +00:00
Steve Price
9e5a9c06d0 Remove y.tab.h from the beforedepend target. Also add a
rule that shows the dependency of arith_lex.[co] on y.tab.h.

Suggested by: Bruce Evans <bde@zeta.org.au>
1997-05-21 03:23:23 +00:00
Steve Price
b7059dd6df Add explicit y.tab.h rule so that 'make depend clean all' does
not fail with an "don't know how to make y.tab.h" error.
1997-05-19 00:29:29 +00:00
Steve Price
e7a0b0244d Use the __unused attribute where warranted. 1997-05-19 00:18:52 +00:00
Steve Price
f7a827cc92 Miscellaneous sorting and addition of rules for object files that
depend on generated headers.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
1997-05-19 00:16:27 +00:00
Steve Price
ea76be72fe Revise the section that explains how to protect parts of an $ENV script
from being executed in non-interactive mode.

Suggested and Reviewed by: Brian Somers <brian@freebsd.org>
1997-05-07 11:42:00 +00:00
Steve Price
2afa86e799 Don't source $ENV unless this is an interactive shell. 1997-05-05 03:45:17 +00:00
Steve Price
5382d20cf1 Turn on the new type builtin. 1997-04-28 03:50:07 +00:00
Steve Price
96522b887c Sync with NetBSD's revision 1.29 of this file.
Obtained from: NetBSD
1997-04-28 03:28:43 +00:00
Steve Price
f4eb55ba86 Remove an extra semicolon and nuke register keyword usage. 1997-04-28 03:27:12 +00:00
Steve Price
79f569479b Fix redirection of unopened file descriptors and nuke register
keyword usage.

Obtained from: NetBSD
1997-04-28 03:25:13 +00:00
Steve Price
7920a31db6 Revert changes from rev 1.16 to 1.17 for now. Closes PR 2879. 1997-04-28 03:22:09 +00:00
Steve Price
ab72124fb4 mdoc-ify and cleanup UNIMPLEMENTED messages. Closes PR 2880. 1997-04-28 03:20:09 +00:00
Steve Price
115359949d Reorder declarations slightly. 1997-04-28 03:17:51 +00:00
Steve Price
904a3dc819 Avoid a possible NULL pointer dereference, nuke register usage,
and remove an unnecessary reset.

Obtained from: NetBSD
1997-04-28 03:16:12 +00:00
Steve Price
7e461ef4f3 Nuke register keyword usage, #if -> #ifdef, and avoid void *
arithmetic.

Obtained from: NetBSD
1997-04-28 03:14:04 +00:00
Steve Price
4ca7fe3b96 Nuke register keyword usage, rename pread to preadfd, and open
input files FD_CLOEXEC.

Obtained from: NetBSD
1997-04-28 03:11:52 +00:00
Steve Price
62730a71b9 When NO_HISTORY is defined and the history command is used
show an error message.

Inspired by: NetBSD
1997-04-28 03:10:31 +00:00
Steve Price
76ad65f7f6 Add a type builtin and nuke register keyword usage.
Obtained from: NetBSD
1997-04-28 03:08:38 +00:00
Steve Price
afb033d5c4 Nuke register keyword usage and #if -> #ifdef.
Obtained from: NetBSD
1997-04-28 03:06:52 +00:00
Steve Price
61f4ddf420 Shamelessly pilfer most of NetBSD's Makefile so that the
problem with 'make -j n' and no .depend file goes away.
I think Bruce mentioned this somewhere on one of the
mailing lists.

Obtained from: NetBSD
1997-04-28 03:03:23 +00:00
Warner Losh
93ef08af3e compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.
1997-03-28 15:24:41 +00:00
Peter Wemm
b97fa2ef50 Revert $FreeBSD$ to $Id$ 1997-02-22 14:13:04 +00:00
Steve Price
2293cbb28a Fix a expansion bug that caused the result of echo $((1 << 30))
to get truncated.

Submitted by: bde
1997-02-16 01:54:19 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Steve Price
938ddab485 Fix a problem that caused some foreground pipelines to die with:
tcsetpgrp failed, errno=1

Discovered and Reviewed by: joerg
1997-01-06 01:26:44 +00:00
Steve Price
5e46e01939 Make sh(1) think and be in the same place at the same time. This closes
PR#2331: strange output of sh's pwd on symlinked directories.
1997-01-04 19:14:29 +00:00
Steve Price
f98e1b8071 With these changes sh(1)'s trap command should be POSIX-compliant,
while remaining (becoming :) compatible with other popular shells.
Specifically these changes include:

1) Implement 'trap -l' to get a list of valid signals names.  This
   is useful if you wanted to do something like reset all signal
   handlers to there defaults values, in which case something like
   this will do the trick.

	trap `trap -l`

2) Reformat the output of 'trap' so it can be saved and later eval'd
   to restore the saved settings.

3) Allow the use of signal names as well as signal numbers.

4) Fix trap handling of SIGCHLD so that commands like the following
   (albeit, contrived) won't cause sh(1) to recurse ad infinitum.

	trap uname 0 20

5) Make variables static that are used only in trap.c.

6) Minor 'style(9) police' mods.
1996-12-24 23:59:53 +00:00
Steve Price
8df71a5a7d Oops, it needs little more caulk to get it right. 1996-12-23 22:29:03 +00:00
Steve Price
79e02527ef Apply a little dab of bit caulk to keep those beggars
from leaking out.

Noticed by: bde
1996-12-23 22:16:35 +00:00
Steve Price
a41f1d080d Don't use _POSIX_PATH_MAX to limit the size of the path, instead
use 'getcwd(NULL, 0)' just as pwd(1) does.

Suggested by: bde
1996-12-23 05:31:48 +00:00
Steve Price
958ba632fa Make sh(1) a little braver in the face of adversity. sh(1)
now handles the getpwd() init problem the same way as bash
and ksh do.  Also while I was in here, I cleaned up the format
a little, removed some unnnecessary #if SYMLINKS cruft, and
changed the pwd builtin to use getcwd(3) as Joerg suggested.
1996-12-21 22:09:40 +00:00
Steve Price
33703c0825 This doesn't change any behavior, but may be a slight
optimization.  (num-- > 0) --> (--num >= 0).

Obtained from: NetBSD
1996-12-21 15:16:32 +00:00
Steve Price
5ac79b0aae Remove extra #undef. 1996-12-21 14:57:38 +00:00
Steve Price
93d0e5ef14 Fix a problem caused by finger failure on my part. The builtin
getopts should now work as expected.  This fix was in the NetBSD
code that I was merging from but missed getting into FreeBSD's
version because of 'drain bamage' on my part.

Submitted by:	NetBSD, joerg
1996-12-21 13:21:57 +00:00
Steve Price
ab0a217285 Merge in NetBSD mods and -Wall cleaning.
Obtained from: NetBSD, me
1996-12-14 06:20:03 +00:00
Peter Wemm
7a2ce49ee0 Back out rev 1.7 which was to fix PR#1206 (to be reopened).
This patch causes too many side effects, one of which bites hard is
when interrupting a 'make fetch' in the ports tree (PR#1990).
This whole area is a real can of worms....

This most definately should go into 2.2

Reviewed by: steve, bde
1996-11-12 18:35:06 +00:00
Andrey A. Chernov
3cd859a7f1 1) define STATIC as static and not empty
2) replace collate_range_cmp call with its code
1996-10-31 07:15:57 +00:00
Steve Price
621a31c6ff Add the -p (privileged) commandline switch
found in bash, zsh, and friends.

Reviewed by: joerg
1996-10-29 03:12:51 +00:00
Bruce Evans
aedfda0f82 Build intermediate object files for mkinit, mknodes and mksyntax
so that simple regresssion tests based on `cmp' work.  mkdep still
doesn't work right for these tools.  They should probably be in
separate directories.

Sorted dependencies.
1996-10-25 14:49:24 +00:00
Steve Price
b9ab560398 Close PR# 1206. sh(1) now ignores SIGINT and SIGQUIT
when a child is forked and the -c commandline switch
has been specified.

Reviewed by: joerg
1996-10-22 03:02:07 +00:00
Steve Price
856541b91f Benign | --> || correction. 1996-10-16 02:30:39 +00:00
Steve Price
d1e9927277 Fix a problem with sh that conflicts with the -e
flag text in the man page.  Now this will work
correctly:

	/bin/sh -ec 'false && true; echo hi'

Obtained from: VaX#n8 <vax@linkdead.paranoia.com>
1996-10-06 15:17:19 +00:00
Peter Wemm
7081f1bc92 re-activate the printf builtin now that src/usr.bin/printf.c has been
tweaked to work as a builtin better (ie: calls the real printf formatting
code, not sh's cut-down out1fmt() function)
1996-10-01 04:59:13 +00:00
Adam David
5ff36b379e Mend 'exit' without breaking 'exit 1'
*blush* %-\

Pointed out by: bruce
1996-09-12 12:41:46 +00:00
Bruce Evans
4d55cbc522 Backed out last change. It broke even `exit 1'. 1996-09-12 02:23:33 +00:00
Peter Wemm
5c817731db Ok, lets try this again, shall we? It was definatly my mistake, not
Steve's.. :-]
1996-09-10 02:42:33 +00:00
Peter Wemm
1018bd8d3c ack! back these out so I can see what I did wrong. It looks like a
patch-by-hand botch, but it sig-11's during make world.
1996-09-10 02:07:27 +00:00
Peter Wemm
18e4c9579e Fix for PR#1248, sh doesn't expand past ${9}
Submitted by: Steve Price <sprice@hiwaay.net>
1996-09-10 01:24:11 +00:00
Adam David
279de1f97b let the "exit" command return status when it is implicit 1996-09-08 03:12:22 +00:00
Peter Wemm
4e4e09596d eek, how did that happen? I must have committed something left over from
when I was experimenting looking for an alternate format.  *blush*
1996-09-03 14:24:44 +00:00
Peter Wemm
4417f6297d Fix for PR#1287. This makes sh behave sensibly in case statements in the
face of aliases.  Note, bash doesn't do aliases while running scripts, but
"real" ksh does..

Also:
  Reduce redundant .Nm macros in (unused) bltin/echo.1
  nuke error2, it's hardly used.
  More -Wall cleanups
  dont do certain history operations if NO_HISTORY defined
  handle quad_t's from resource limits

Submitted by: Steve Price <sprice@hiwaay.net>  (minor tweaks by me)
1996-09-03 14:16:06 +00:00
Peter Wemm
16992ff483 Misc cleanups and fixes from Bruce:
- don't put \n on error() calls, error adds it already.
 - don't prepend "ulimit" on error() calls in miscbltin.c.
 - getopt typo on ulimit -p -> -u conversion
 - get/setrlimit() calls were not being error checked

ulimit formatting cleanup from me, use same wording as bash on Bruce's
suggestion.  Add ulimit arg to output on Joerg's suggestion.
1996-09-03 13:35:11 +00:00
Peter Wemm
8a8c5e4e92 oops, I didn't mean for the unconditional DEBUG code to go in, it's been
off in FreeBSD for some time.  I realised this a few seconds after the
commit started..
1996-09-01 10:27:49 +00:00
Peter Wemm
aa9caaf657 Merge of 4.4-Lite2 sh source, plus some gcc -Wall cleaning. This is a
merge of parallel duplicate work by Steve Price and myself. :-]

There are some changes to the build that are my fault...  mkinit.c was
trying (poorly) to duplicate some of the work that make(1) is designed to
do.  The Makefile hackery is my fault too, the depend list was incomplete
because of some explicit OBJS+= entries, so mkdep wasn't picking up their
source file #includes.

This closes a pile of /bin/sh PR's, but not all of them..

Submitted by: Steve Price <steve@bonsai.hiwaay.net>, peter
1996-09-01 10:22:36 +00:00
Wolfram Schneider
b8923d4cc0 [HISTORY] command appeared in Version 1 AT&T UNIX
Obtained from: A Quarter Century of UNIX, Peter H. Salus, page 41
1996-08-29 18:06:19 +00:00
Andrey A. Chernov
c07cbf9cf8 Take out 0201-0207 range - those characters abused by sh 1996-08-12 22:14:50 +00:00
Andrey A. Chernov
c906f8d406 Convert to newly added collate compare function 1996-08-12 19:31:11 +00:00
Andrey A. Chernov
917de9be32 Simplify expression 1996-08-12 12:31:28 +00:00
Andrey A. Chernov
ba726b8a91 Localize it 1996-08-11 22:51:00 +00:00
Jordan K. Hubbard
cd9a2f5c28 Bring in my changes for removing the pestilent obj links (unless you
really want them) from /usr/src.  This is the final version of the
patches, incorporating the feedback I've received from -current.
1996-06-24 04:26:21 +00:00
Poul-Henning Kamp
bd6e0d9485 Backup yacc changes. 1996-06-02 17:06:40 +00:00
Poul-Henning Kamp
c959cc994a Use new yacc rules. (I'm fixing the tree as fast as I can :-) 1996-05-30 20:52:26 +00:00
Peter Wemm
9ec1e4b123 This commit was generated by cvs2svn to compensate for changes in r15920,
which included commits to RCS files with non-trunk default branches.
1996-05-27 01:41:12 +00:00
Peter Wemm
069428af6d Import the 4.4BSD-Lite2 /bin/sh sources
Requested by: joerg

(Note, this is mostly going to be conflicts, which is expected.  Our entire
 sh source has a mainline, so this should not change anything except for
 a few new files appearing.  I dont think they are a problem)
1996-05-27 01:41:12 +00:00
Joerg Wunsch
0f9a535124 Fix the borokeness that crept in with rev 1.10 of parser.c, the sh
didn't correctly start background jobs anymore.  Strange that nobody
was complaining...

Add a dummy target for `builtins' in the Makefile, to prevent it
from attempting to build this file by compiling builtins.c. :-/
1996-02-03 13:27:55 +00:00
Bruce Evans
7fdb7bc891 Restored formatting from the old printf/printf.c. 1995-12-14 23:19:36 +00:00
Joerg Wunsch
454bd7b924 The shell incorrectly gave & precedence over ;. This breaks the
traditional behaviour, and it violates Posix.2.

Fixes PR # bin/880: /bin/sh incorrectly parse...

Fixes also an earlier problem report about the shell not evaluating
loops correctly.  (Not files via GNATS.)

Submitted by:	nnd@itfs.nsk.su (Nickolay N. Dudorov)
1995-12-10 17:59:23 +00:00
Joerg Wunsch
d9f9371008 Move out some of the shell builtin bogosity from printf's source to
sh's builtin/bltin.h.
1995-12-10 15:40:42 +00:00
Peter Wemm
8d7d5ceaa5 A fix for the "cd -" coredump on a brand new /bin/sh. The problem was
noticed on a NetBSD bugs mailing list but this is entirely my own work.

Inspired by: Scott Reynolds <scottr@plexus.com>, for NetBSD
1995-11-14 01:04:52 +00:00
Peter Wemm
8f08f33ed9 Implement allowing 'set -v' in the middle of a script to work.
This means that a script containing:
  echo 1
  set -v
  echo 2
will now produce output, like it does on SYSV machines and other 'proper'
/bin/sh implementations..

This is done by a slight restructure of the input processor allowing it to
read chunks from the file at a time, but process the data by line from the
chunk.

Obtained from:  Christos Zoulas for NetBSD. <christos@deshaw.com>
1995-11-03 18:50:14 +00:00
Joerg Wunsch
769bbc65e8 o rename ulimit -p into ulimit -u, so we are in agreement with bash
o fix brokeness for 1>&5 redirection, where `5' was an invalid file
  descriptor, but no error message has been generated

o fix brokeness for redirect to/from myself case
1995-10-21 00:47:32 +00:00
Joerg Wunsch
7a2afe644c Implement the "ulimit" builtin. This is the analogon to csh's "limit"
command and badly needed in sh(1) for everybody who wants to modify
the system-wide limits from inside /etc/rc.

The options are similar to other system's implemantations of this
command, with the FreeBSD additions for -m (memoryuse) and -p (max
processes) that are not available on other systems.
1995-10-19 18:42:12 +00:00
Joerg Wunsch
3d434cfb15 Fix my breakage of the $0 handling during $ENV processing.
Since the broken version went into 2.1, this fix should, too.
1995-10-09 17:56:32 +00:00
Joerg Wunsch
6aee553317 Make the mkinit internal command issue an #undef for each #define, to
avoid "duplicate definition" warnings.
1995-10-01 15:13:31 +00:00
Joerg Wunsch
6d753bdd67 Posixize:
sh  -c [-aCefinuvx] command_string [ command_name [argument ...]  ]        1

 4.56.3  Options

    -c          Read commands from the command_string operand.  Set the
                value of special parameter 0 (see 3.5.2) from the value of
                the command_name operand and the positional parameters
                ($1, $2, etc.) in sequence from the remaining argument
                operands.

Pointed out by: Kaleb Keithly (kaleb@x.org)
1995-10-01 15:11:42 +00:00
Bruce Evans
beff52884f Fix relocation of job table.
while { sleep 1 & wait; } do echo 1; done

corrupted the job table every 4th iteration.
1995-09-21 13:24:20 +00:00
David Greenman
a9e0f8b2e0 Don't dereference a NULL pointer in the case of a null pipe.
e.g.:
ls |> foo.out

sh now behaves the same as it does under SunOS 4.x for this case.
1995-09-20 08:30:56 +00:00
Joerg Wunsch
248ffae537 Sigh. This will become a never ending story. :-(
When comparing my recent parser change against the ash in 1.1.5.1, i
found that a couple of other problems in the same area has been fixed
there, but not in 2.2.  Semicolons and EOF do also delimit words...
1995-08-28 19:24:35 +00:00
Joerg Wunsch
47a052e00f Make the shell handle a null command in a &&/|| sequence correctly.
The && and || tokens do also terminate a command, not only the
newline.

While i was at it, disabled trace code by default, it served no good
purpose since it required the use of a debugger anyway to be turned
on.  Instead, placed a hint in the Makefile on how to turn it on.

This makes the shell ~ 10 % faster and ~ 4 KB smaller. :)

Pointed out by:  jan@physik.TU-Berlin.DE (Jan Riedinger)
1995-08-27 20:26:44 +00:00
Paul Traina
e3149abdf5 Clean up compilation warnings. 1995-08-23 05:31:06 +00:00
Joerg Wunsch
72348d41ba sh(1) incorrectly ignored an EOF condition when looking for the
closing backquote in a `foo` substitution.

Discovered by: Martin Welk <mw@theatre.pandora.sax.de>
1995-08-11 08:18:39 +00:00
Joerg Wunsch
78e1fb6090 Fix /bin/sh's broken handling of the builtin getopts(1). The options
``-ffoo'' and ``-f foo'' have been treated differently.

This has been in violation of Posix.2 (that deprecates -ffoo, but
doesn't disallow it).
1995-08-06 19:35:33 +00:00
Rodney W. Grimes
2162b2d226 Remove trailing whitespace.
Reviewed by:	phk
1995-05-30 00:07:29 +00:00
Adam David
f434d1dfe1 typo there --> their 1995-05-05 16:49:15 +00:00
David Greenman
3fb0993969 From "Philippe Charnier" <charnier@lirmm.fr>:
There is a bug in sh: the built in command "fc -l" generates
a core dump (*NULL in not_fcnumber).

According to the sh manual page (fc  -l [-nr] [first [last]]), fc -l
is a correct sequence (in that case, values are defaulted to -16 and -1)
but fails when first is not given.
1995-05-05 06:34:13 +00:00
Poul-Henning Kamp
295a3379fe Make build work, even if there is no obj subdir. 1995-03-30 19:45:20 +00:00
Guido van Rooij
528ad82b4c Fix the deletion of trailing newlines with backquote expansion.
Reviewed by:
Submitted by:
Obtained from:
1995-03-01 13:04:15 +00:00
Paul Richards
1e95454e10 What I think is a more correct fix for the handling of backslashes
inside backquotes. Reversed my previous fix.
1995-01-11 07:07:00 +00:00
Paul Richards
f5c4a27846 Fix a bug with handling backslash escapes inside some quotes.
Should solve our problems with edit-pr.
1995-01-09 20:00:54 +00:00
Bruce Evans
61233bdc2e Obtained from: partly from 1.1.5
Convert "" to "." for "cd" and "cd ''".  chdir("") is required to fail
on POSIX systems.
1994-12-26 13:02:05 +00:00
Paul Traina
a0334cef15 Add end of line check so mkinit doesn't produce garbage if you have a
MKINIT line that doesn't have a comment on it (we have at least two).

This mkinit program was written by someone who obviously doesn't believe
in defensive programming. :-(  There's a LOT of work that needs to be done
on this thing. :-( :-( :-(
1994-11-06 06:27:04 +00:00
Jordan K. Hubbard
beeac5cded Get this braindead, mongoloid shell look in /stand for pwd if it can't
find it in /bin.  This is something of a kludge, I know, but consider
my limited alternatives:  I can't make this an execvp() without making
people scream that I introduced a failure point or slowed down pwd,
and I can't make it an optional macro since crunch doesn't let you pass
arbitrary command-line args to the build of one of its crunch-ees.
This is the simplest, if not the nicest looking, solution I could come up
with.
1994-11-06 01:29:26 +00:00
Andrey A. Chernov
c7eb1baf5d libcompat removed 1994-10-02 01:36:03 +00:00
David Greenman
89730b290a Added $Id$ 1994-09-24 02:59:15 +00:00
Sean Eric Fagan
650488feaa With '!' being made into a keyword (yech!), case cases didn't work properly.
This should fix it (passed my test cases).  Originally discovered with
perl's Configure (well, in FreeBSD, I don't know how the NetBSD folks
discovered it).

Reviewed by:	sef
Submitted by:	jtc@cygnus.com
Obtained from:	NetBSD
1994-09-14 17:41:32 +00:00
Bruce Evans
2577a8acef Add dependencies on libraries to DPADD. Someday this should be done
automagically.  -lfoo has to be right to work, but ${LIBFO0} is too
easy to forget or misspell; nothing checks it and it should be
different for shared libraries.
1994-08-28 18:49:06 +00:00
Bruce Evans
104915fbb9 Touch init.c after making it in case mkinit refused to touch it after not
changing it.  mkinit's attempted smartness about timestamps is mismatched
with the makefile.  init.o is compiled _twice_ the first time it is made...
1994-08-21 10:44:51 +00:00
David Greenman
fa074287a4 Got rid of stupid warning message. 1994-08-18 14:35:23 +00:00
Rodney W. Grimes
bfce144014 Need ${LDFLAGS} one more place. 1994-05-30 13:59:50 +00:00
Rodney W. Grimes
5b3d56346b Need to sue ${LDFLAGS} when building local binaries so they get built
static if ${NOSHARED}==YES.  This makes it easier to bootstrap a system.
1994-05-29 12:43:06 +00:00
Rodney W. Grimes
4b88c807ea BSD 4.4 Lite bin Sources 1994-05-26 06:18:55 +00:00