Commit Graph

520 Commits

Author SHA1 Message Date
seb cf788c3115 Add new builtin `wordexp' to support wordexp(3).
From FreeBSD.
Provided in PR lib/26123.
Approved by kleink@.
2004-07-13 15:05:59 +00:00
christos 5dd9099216 PR/25699: David Laight: sh(1) hangs opening a named pipe as stdin for
background process
This happens because we vfork, and then open a named pipe with O_RDONLY
and block in the child. We avoid this, by opening the file with O_NONBLOCK,
and then reset it if we are vforked. XXX: this is an ugly fix.
2004-07-08 03:57:33 +00:00
mycroft 1ccdf5daeb Make "set -e" once again provide the behavior documented in the man page,
which was unnecessarily changed in revision 1.50 while fixing other bugs.
That is, exit the shell if the last command in a || or && compound statement
is not short-circuited, and exits with a false status.  I.e., the following
will cause the shell to exit:

  set -e
  false || false

While this is not the prescribed behavior in SUSv3, it is what our man page
documents, and it is what all of the following implementations do:

  NetBSD /bin/ksh (pdksh)
  bash
  zsh
  Solaris 9 /bin/sh
  Solaris 9 /usr/xpg4/bin/sh
  Solaris 9 /usr/bin/ksh
  Tru64 /bin/sh
  HP/UX 11 /bin/sh

The "standard" seems to be wrong in this instance.
2004-06-30 09:32:38 +00:00
dsl 60bb0d96f3 Fix treatment of ' inside a 'here document' with a quoted EOF marker.
Fixes a breakage from the previous version.
2004-06-27 10:27:57 +00:00
dsl c6cbc16d26 Correctly apply IFS to unquoted text in ${x-text}.
Fixes PR/26058 and the 'for i in ${x-a b c}; do ...' and ${x-'a b' c}.
I can't find a PR for the latter problem.
Regression test goind in shortly.
2004-06-26 22:09:49 +00:00
dsl 97e8f81436 Remove a broken optimistion that crept in earlier today. 2004-06-26 20:48:44 +00:00
dsl 8e940884ca Kill a diagnostic I accidentally left in. 2004-06-26 14:21:29 +00:00
dsl e4a2a056d2 No functional changes (intended).
Rename some variables, add some comments, and restructure a little.
In preparation for fixing "set ${x-a b c}" and friends.
2004-06-26 14:09:58 +00:00
dsl 39cf7788fc Use shell variables to get '(' and '\' inside shell substitution patterns.
Solves problems with different shells having differntly buggy parsers
(and the standard probably allowing random behaviour).
Should fix bin/25938
2004-06-15 23:09:54 +00:00
dsl c6e67e3bf2 Change '\0' to 0 so that the SVR4 'echo' doesn't convert it to a null byte.
Fixes bin/25938
2004-06-15 22:57:27 +00:00
christos cf19966782 Undo previous fix, breaks:
#!/bin/sh
echo ${1+"$@"}
./sh.new foo.sh a b c
a b c b c
I'll revisit this when I have some more time.
2004-06-09 12:17:36 +00:00
christos fc5d411571 "for i in ${x-a b c}; do echo $i; done" should print "a\nb\nc\n" not "a b c\n"
like other shells do. mark the expansion for ifs splitting. XXX: linux has a
very complicated fix for this. I wonder why.
2004-06-08 03:29:51 +00:00
christos 95a737969b don't include the printf builtin if we are SMALL; saves 10K. 2004-06-06 07:03:11 +00:00
hubertf c784286d1a Fix typo: and the -> and then 2004-06-03 19:54:37 +00:00
dsl 00a6315e86 Ensure that fd 0, 1 and 2 are not used for the local end of pipelines.
Fixes PR bin/25395
2004-04-30 06:27:59 +00:00
wiz d8dd84fc16 Fix typo noted by Patrick Welche. 2004-04-23 13:28:15 +00:00
lukem 778dabc229 Correct the description of sbsize; it is parsed in bytes not kbytes. 2004-04-19 01:36:32 +00:00
wiz 8e5ab2cd61 Bump date for previous. 2004-04-17 15:42:42 +00:00
christos 6acf809e53 understand rlimit sbsize 2004-04-17 15:40:12 +00:00
dsl f0177aeba6 Put a syntax.c under CVS instead of building if with the mksyntax program.
Kill mksyntax.c - no longer possible to get the 'wrong sort of chars'.
/bin/sh now has no helper binaries.
syntax.c uses C99 initialisers, run time initialisation could be used
for systems where the compiler doesn't support them.
I've used some #defines to help make this possible - but writing the code
starts making it rather messy.
2004-01-17 17:38:12 +00:00
dsl 9cd22030d1 Put syntax.h under CVS instead of having it generated by mksyntax.
Use CHAR_MIN (from limits.h) to determine whether target char are signed
or unsigned - the syntax tables will not be indexed properly.
Rip out all the stuff from mksyntax.c that wrote syntax.h.
syntax.c can stiff be generated incorrectly...
2004-01-17 15:40:09 +00:00
dsl 1fe487ae6e Replace mkinit.c with mkinit.sh
Build mksyntax directly from mksyntax.c so that the -DTARGET_CHAR=xxx
is applied when it is build.
OTOH mksyntax is broken as it tries to determine properties of the
target system by running code on the build system.
2004-01-17 11:47:30 +00:00
dsl df348483d0 Replace the C program mknodes.c with a shell script mknodes.sh
(mkinit and mksyntax may also die soon...)
2004-01-16 23:24:38 +00:00
jmmv b635f565e7 Homogenize usage messages: make the 'usage' word all lowercase, as this seems
to be the most common practice in our tree.
2004-01-05 23:23:32 +00:00
wiz 4eb81d63b4 Fix example added in previous. 2003-12-21 11:16:23 +00:00
jdolecek 9927abce5e add a note to Short-Circuit operators section about the somewhat
nonintuitive evaluation in case there is both || and && specified
pointed out in bin/23814 by VaX#n8
2003-12-21 08:40:29 +00:00
jdolecek 30651d6b04 minor optimization in evalvar()
change sent in bin/23813 by VaX#n8
2003-12-21 08:32:39 +00:00
heas 8e58476bbd correct 2 typos 2003-12-18 15:52:31 +00:00
christos 08f1ceee65 PR/23786: Robert Nestor: wait command returns the wrong status code. This
seems to be an off-by-one error, since njobs is decremented before we use
it. I hope this does not break the vfork case!
2003-12-18 00:56:05 +00:00
dsl 7983f217c9 Generate command line when SMALL is defined and make buffer full sized.
All the code has been present for a while, and the memory cost is (about)
180 bytes per process.
Fixes PR bin/23545
2003-11-27 21:16:14 +00:00
lukem e606e2dcb2 Improve how various "simple" host tools are built and invoked. 2003-11-16 14:14:18 +00:00
dsl 296844fe72 Posix requires that 'pwd -P' reset the shells saved cwd value - so a
subsequent 'pwd -L' will report the same value.
Update man page to be a closer match to reality.
2003-11-14 20:00:28 +00:00
dsl c0cf1d6b30 This seems to need stdlib.h to get a prototype for abort(). 2003-11-14 10:46:13 +00:00
dsl edecd89511 Add '\n' to "fork failed" trace messages. 2003-11-14 10:27:10 +00:00
dsl df5bd11fb9 Validate the arguments to 'pwd'. Treat -L and -P as per pwd(1).
Note that 'pwd -L' and 'pwd -P' almost always report the same answer as
the shell detects when 'cd' follows a symlink and discards its cached 'pwd'
2003-10-30 09:40:26 +00:00
wiz 6a22b79c1a passwd(5), not passwd(4). From Igor Sobrado in PR 23278. 2003-10-27 08:23:40 +00:00
wiz 4580c6ac21 Do not xref alias(1) since that points to csh(1).
Noted by Igor Sobrado in PR 23278, fixed following a suggestion by Greg A. Woods.
2003-10-27 08:22:21 +00:00
lukem 7568eb663a skip a leading `-' on the arg0 name when calling el_init() 2003-10-27 06:19:29 +00:00
lukem 130ab7336b Rework how MAKEVERBOSE operates:
*	Don't bother prefixing commands with a line of  ${_MKCMD}\
	and instead rely upon "make -s".  This is less intrusive on
	all the Makefiles than the former.  Idea from David Laight.

    *	Rename the variables use to print messages.  The scheme now is:
	    _MKMSG_FOO		Run  _MKMSG 'foo'
	    _MKTARGET_FOO	Run  _MKMSG_FOO ${.TARGET}
	From discussion with Alistair Crooks.
2003-10-21 10:01:19 +00:00
christos 1bbc81a501 Let libedit handle signals so we resize properly. I might change my mind
later on that.
2003-10-19 19:13:21 +00:00
lukem ddff99b7f4 rework to use the newer _MKMSGCREATE (et al) macros 2003-10-19 04:45:01 +00:00
lukem 1e840c4d40 Ensure that $TERM is set in the real environment before calling el_init(3)
when executing "set -o (emacs|vi)".   Fixes [bin/23175] from me.
2003-10-19 01:55:05 +00:00
lukem a9d371700c improve MAKEVERBOSE message for HOST_LINKed tools 2003-10-19 00:43:02 +00:00
lukem 29e7d09b65 Support MAKEVERBOSE (XXX: mksyntax is noisy when MAKEVERBOSE=0).
Use DPSRCS appropriately.
2003-10-19 00:35:26 +00:00
lukem 51b9502fb1 Link the host tools against tools/compat -lnbcompat since someone decided to
use strlcpy() and snprintf() in the host tools...

Should fix part of [toolchain/22504], and build problems on other
platforms that don't have strlcpy() or snprintf()...
2003-10-18 07:58:35 +00:00
dsl b17e1b5c12 Fix 'set "*" b; case "* b" in "$@") ...' and 'set "*"; case 1 in "${#1}") ...'
Which got broken by the previous fix.
2003-09-22 12:17:24 +00:00
jmmv 4c79e7620f Drop equal signs from rule definitions; they cause problems with "bison -y". 2003-09-17 17:33:36 +00:00
christos 4dcb41ae2c PR/22640: Paul Jarc: sh mishandles positional parameters in case. Fixed
from FreeBSD PR 56147.
2003-09-17 16:01:19 +00:00
jmmv 0ec085e737 Add 'trace' to CLEANFILES, generated when debug is enabled. 2003-09-14 12:11:10 +00:00
jmmv af90286087 Fix crash when DEBUG=2, by opening the log file ASAP. Reviewed by simonb@. 2003-09-14 12:09:29 +00:00