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358 Commits

Author SHA1 Message Date
mycroft
c06643b836 Disable bogus-looking code that cause us to throw away SIGINTs. 1999-04-05 14:59:35 +00:00
christos
832949b912 When we execute commands from a shell script, make sure that the signals 
are being caught (reported by Alexis Rosen), similar to the -c case.

#!/bin/sh
vi "$@"

^C when the script is running...
 1999-03-27 13:46:19 +00:00
christos
28607542af PR/7231: Havard Eidnes: Shell quoting/trimming problem 1999-03-26 15:49:34 +00:00
ross
4b1d9297dc Make the `...' actually appear in the case/esac syntax section. 
Fix a space botch in the $@ example.
Kill warnings caused by the effective but wrong use of \[ and \] to
perform the function of \&[ and \&].
 1999-03-23 02:29:29 +00:00
garbled
f124765044 More and more .Os cleanups. .Os is defined in the tmac.doc-common file, 
so we shouldn't override it with versions in the manpages.  Many more to
come.
 1999-03-22 18:25:43 +00:00
castor
dc67d78474 Add '#include <sys/types.h>' since that's where int8_t and u_int8_t can 
usually be found.
 1999-03-08 17:55:20 +00:00
wrstuden
6790f70d78 Make cross-building from i386 to powerpc (from signed to unsigned char) 
ports work right.
 1999-02-23 01:50:26 +00:00
christos
96a46ed7b1 Fix off-by-one error in the starting point to search for an arithmetic 
expression.
 1999-02-06 17:23:09 +00:00
tron
96dc868859 Remove "arith.h" while cleaning. 1999-02-05 22:19:47 +00:00
christos
1666f88d5d Fix the -c problem differently. We cannot just ignore SIGINT etc, otherwise 
we cannot interrupt sh -c <command>
 1999-02-05 21:21:27 +00:00
christos
b4c9a78425 PR/5577: Craig M. Chase: sh does not build with PARALLEL set. 
- Added YHEADER in Makefile, removed arith.h and adjusted the sources.
 1999-02-05 07:52:51 +00:00
christos
6e50d7a816 PR/4966: Joel Reicher: Implement <> redirections which are documented in 
the man page.
 1999-02-04 16:17:39 +00:00
christos
dd65252560 PR/1788: Shinya Taniguchi: sh -c does not setup signals properly. 
[Reminded to me by Alexis Rosen -- thx!]
 1999-02-04 11:20:40 +00:00
cjs
9063efaca0 Add -q option, which when used with -v and/or -x, turns off the tracing 
during the execution of /etc/profile, .profile and $ENV.
 1999-02-04 00:27:07 +00:00
itohy
362c3e31c9 The builtin . (dot) command no longer sees the current working directory 
even if the specified file is not in the PATH.
This change enforces security and makes it conform to POSIX.

Closes PR #6794.
I thought Christos committed this but not appeared yet. :)

The setstackmark()/popstackmark() pair in dotcmd(), used for freeing
stack storage possibly allocated by find_dot_file(), is redundant for now
since dotcmd() is surrounded by another pair in evalcommand().
This redundancy, however, may help future modifications
(suggested by Christos).
 1999-02-02 15:49:52 +00:00
kleink
f71d010d24 Add support for the export and readonly -p option. 1999-01-28 18:11:50 +00:00
mycroft
1fbf0781c6 Patches from Tor Egge (via Havard Eidnes) to fix various bugs in field 
splitting and combining.
(Note: Some of this are not strictly bugs, but differences between traditional
Bourne shell and POSIX.)
 1999-01-25 14:20:56 +00:00
christos
e1849b79b1 PR/6213: Urban Boquist: /bin/sh does not handle a trapped signal correctly 
The problem was that system calls got restarted after a signal,
	 instead of returning EINTR. Thus the read builtin, had no way to
	 know that a signal occured that could change the course of execution.
	 Since the code has sprinkled checks for EINTR all over the place,
	 it is supposed to work properly with non restartable syscalls.
	 The fix is to use siginterrupt(signo, 1), before setting a signal
	 handler, to make sure that system calls don't get restarted.
 1999-01-18 16:18:04 +00:00
garbled
f33f4be925 Massive fixup: 
Rewrite man page in mandoc format rather than nasty man format.
Fix a ton of parsing errors, and generate proper .Xr's.
document all known environment variables.
suggest ksh rather than bash.

The last two fix PR #1966.  Wheee!

Somebody with access to the POSIX spec needs to go in here, and document
our adherence, or lack thereof.
 1999-01-11 19:34:53 +00:00
msaitoh
576a5fdc92 fix some bugs 1998-11-17 14:16:32 +00:00
garbled
b4e6f9c37a Modify to better document getopts. This fixes PR# 704. Much thanks to 
Christos for helping me out with this.
 1998-10-29 23:23:36 +00:00
ross
7fc1302b5d The recent cross-compile changes broke the build of x_sh. Properly use 
${.IMPSRC} instead of the broken ${.CURDIR}/thing.c.
 1998-10-08 00:29:38 +00:00
itohy
ef88b5d2bd Fixed memory leak on old style command substitution 
such as  sh -c 'echo `echo foo`' .
The memory allocated with ckmalloc() at
parser.c:1349:readtoken1() (search for "done:" label)
was never freed.

I changed this to use 'string stack' framework of Ash.
Note that a string on string stack is properly freed on
exception and end of command parsing, and no explicit free
or signal handlings required.
See TOUR for an overview, and memalloc.[ch] for details
of string stack.
 1998-09-26 20:56:33 +00:00
christos
26e51b35ac include <stdlib.h> to get the prototype for free() 1998-09-26 19:28:12 +00:00
itohy
cc484b787f The return value of setmode(3) is a pointer to malloc()'ed area 
and must be freed to avoid memory leaks if called repeatedly.
The leaks occured on symbolic umask command, such as "umask go-w",
which is undocumented.
 1998-09-24 17:49:48 +00:00
wrstuden
1037acbf7e We don't generate .o's anymore for helper programs, so don't CLEANFILES them. 1998-09-12 18:58:41 +00:00
wrstuden
d10063d5c7 Patch to make sh cross-compile right. mksyntax reports unsigned char for 
powerpc, and signed for m68k & i386.
 1998-09-12 18:55:07 +00:00
mycroft
ee9e50eacb Be more retentive about use of NOTREACHED and noreturn. 1998-07-28 11:41:40 +00:00
mycroft
9dc385beb1 Delint. 1998-07-28 05:31:22 +00:00
christos
d06f150426 PR/5848: David Holland: Use PIPE_BUF instead of hardcoding 4k 1998-07-27 17:12:45 +00:00
mycroft
5dd823ab5d const poisoning. 1998-07-26 19:44:12 +00:00
ross
69228f8bd8 Small edit to n1>&n2 description. 1998-07-04 06:52:07 +00:00
ross
ac875dda03 Fix a set of bugs where a cd of a relative pathname or a cd through a 
symbolic link would not set PWD.
 1998-05-21 16:50:40 +00:00
christos
efee39278b Simplify interface for general use. 1998-05-20 01:36:14 +00:00
christos
f792cdd756 Cast is*() args to unsigned chars in case the ctype macros are implemented 
using arrays.
 1998-05-20 00:32:05 +00:00
christos
96133865eb cast pid's to longs for OS's where this is the case. 1998-05-20 00:31:11 +00:00
christos
338ea4cec8 fix bug where if moving in history during a multi-line event, the 
append to history event would end up in the last event where the history
was moved to instead of the multi-line event; reported by Mycroft
 1998-05-20 00:29:26 +00:00
christos
3d8b8b2ed2 Fix dangling else warning. 1998-05-20 00:27:56 +00:00
christos
3ebdac1759 Portability fixes for a non flex based lexical analyzer. 1998-05-18 22:50:20 +00:00
christos
c6e03280d4 Need stdlib.h 1998-05-18 22:48:53 +00:00
christos
d2ded939ef PR/5315: Dan Winship: options parsing code should print errors to stderr. 1998-05-02 18:04:09 +00:00
cgd
2072394059 move OBJS depenency on built headers to after include of bsd.prog.mk, so 
that things are built in the right order on 'make cleandir && make' (i.e.
so that the headers are properly built).
 1998-04-19 05:22:08 +00:00
lukem
d6c354cb4b * remove CFLAGS+=-w for powerpc (added in 1.26): 
- it was in the wrong place
	- makefiles shouldn't override CFLAGS; only CPPFLAGS and COPTS
	- christos fixed unsigned char stuff in 1.33 which should
	  remove the need for -w anyway
* move .include <bsd.prog.mk> to EOF
 1998-04-13 12:06:48 +00:00
tv
482063559a .y.c <sys.mk> rule fixes. Don't create a y.tab.h file unless asked for, 
and use smarter creation of the header file.
 1998-04-09 00:32:31 +00:00
fair
667e4d4cd1 fix default PATH to be <paths.h> _PATH_DEFPATH 1998-04-07 21:15:33 +00:00
fair
618cca243b Change a few things to reference /usr/include/paths.h instead of local 
references. Fixing the default PATH is a bit more effort.
 1998-04-07 10:16:04 +00:00
veego
7f307512f9 Another try to make this work again. Lets hope that the we don't need a 4th 
fix for it.
 1998-03-30 12:06:48 +00:00
mrg
6e35073fed make this work again when . is not in $PATH 1998-03-30 10:07:16 +00:00
christos
0328c41456 Pr/5221: Jason Thorpe: Simplify sh Makefile, so that builts from other 
directories work.
 1998-03-29 09:27:40 +00:00
mrg
a26bae1e08 - change "extern" variables into int's 
- remove extern'd variables not actually referenced
- don't use char as an array index
 1998-03-29 04:41:43 +00:00
christos
04784d87fa Fix the VSTRIMRIGHT* bugs... The problem was not the string length computation, 
but lack of '\0' termination. Factor this segment out as common code too, while
I am there.
 1998-03-23 18:21:02 +00:00
christos
19e7771baa off by one error in ${%%} 1998-03-10 19:11:07 +00:00
christos
7cfc52b208 PR/5001: Tom Yu: cd ./ does not work. 1998-02-17 02:57:16 +00:00
christos
ce0d4f06a6 Previous fix broke $var quoting. Try again differently :-) 1998-02-17 00:16:16 +00:00
christos
d8a1d3710c Re-enabled EXP_RECORD 1998-02-05 08:34:49 +00:00
christos
f7c8df6d68 Fix bug introduced by EXP_RECORD, where in case there was a variable expansion 
involved in the `for' list, the list was recorded twice, leading to incorrect
argument expansion.
Introduce ifsfree() function that free's the IFS region list, GC'ing duplicated
code.
 1998-02-05 08:32:00 +00:00
thorpej
b65b5cae9e Sigh, have to cast pointer diffs to long. 1998-02-04 23:49:25 +00:00
thorpej
a40a144d00 Fix printf formats so they work on the Alpha. 1998-02-04 20:10:16 +00:00
mikel
a235399817 back out last change until christos fixes EXP_RECORD; PR 4932 1998-02-04 06:25:55 +00:00
christos
5a36c00160 PR/4851: Benjamin Lorenz: In the "for <var> in <args>" construct <args> 
was not marked as a region to be handled by ifsbreakup. Add EXP_RECORD
to indicate that the argument string needs to be recorded.
 1998-01-31 12:45:06 +00:00
christos
2b259b0600 - Add gcc attributes to printf like functions 
- Fix format strings to be const
- Fix buffer length to be size_t
- Add %p format
- Avoid code duplication in varargs/stdarg cases
 1998-01-31 12:37:55 +00:00
christos
7faabd5800 Include our local includes after the system's ones. 1998-01-31 12:36:16 +00:00
christos
71868e12e2 Fix printf format. 1998-01-31 12:34:12 +00:00
christos
e3f5fb922f BSD4_4 is a standard symbol in <sys/param.h>; make sure that files 
that need this defined, include <sys/param.h> and don't define it in
the Makefile. Add a comment to that effect.
 1998-01-21 10:47:37 +00:00
pk
5d9692a740 Define BSD4_4: quad_t's in struct rlimit; 1998-01-20 22:43:34 +00:00
christos
38c84eeda3 test for the boundary condition in the previous trailing blank fix 1998-01-16 16:26:22 +00:00
christos
2708e4180f PR/4805: Ty Sarna: read builtin does not remove trailing blanks. 1998-01-15 19:39:11 +00:00
christos
505573954e Unfortunately (as I expected) the previous change broke: 
sleep
    cmd='set `type "sleep"`; eval echo \$$#'
    which=`eval $cmd`
    echo $which

because the region did not get recorded at all, and it was interpreted as
a single word. I modified the code to keep track when the result of a
backquote expansion has been recorded to avoid recording it twice. I still
feel that this is not the right fix... More to come.
 1997-12-01 14:43:20 +00:00
christos
81aad04920 Remove local declaration of getenv(); 1997-12-01 14:40:16 +00:00
christos
b7e4df7784 PR/4547: Joern Clausen: Incorrect argument expansion in backquote variable 
assignment. E.g.
	echo ${foo:=`echo 1 2 3 4`}
prints:
	1 2 3 1 2 3 4
because when the arquments are not quoted, the backquote result
gets recorded twice.  The fix right now is to comment out the
record_region() call in expbackq().  I hope that it does not break
anything else.
 1997-11-30 20:57:33 +00:00
cjs
af5956aa6b Make this compile with -DSMALL and warnings on. 1997-11-12 03:40:55 +00:00
kleink
3780e6aa5d Per 1003.2, the (builtin) read utility shall treat the backslash as an 
escape character (including line continuation), unless the `-r' option
is specified:
* adopt to this behaviour, add the `-r' option to disable it;
* remove the `-e' option, which was previously necessary to get this behaviour.
 1997-11-05 14:05:28 +00:00
christos
82ec25620f pid should be pid_t and status should be int! Avoid alignment problems... 1997-10-15 13:23:10 +00:00
christos
946049095f PR/4257: Jaromir Dolecek: Update for libedit interface change. 1997-10-14 15:06:42 +00:00
christos
e230a48b57 CFLAGS->CPPFLAGS 1997-10-10 19:47:50 +00:00
christos
7f2a271743 PR/3662: David Holland: Make /bin/sh use the symbolic macros for wait(). 1997-10-08 20:31:52 +00:00
lukem
92d7aa0376 getopt returns -1 not EOF 1997-09-14 07:43:56 +00:00
thorpej
23eb2db171 Avoid a segv in bltinlookup() reported by Ronald Khoo <ronald@demon.net> 
in PR #3929, fix submitted by hiroy@NETCOM.COM (Hiroyuki Ito).
 1997-08-26 20:09:59 +00:00
christos
23edbe3557 Remove WARNS=1 from all the subdirectory Makefiles, and add it to Makefile.inc 
now that all /bin has been cleaned.
 1997-07-20 22:36:20 +00:00
christos
c996803cad PR/3888: Chris Demetriou: type command-with-slash prints 
$PATH[0]/command-with-slash...
 1997-07-20 21:27:35 +00:00
thorpej
d891aff808 Cast the result of pointer arithmetic to "long", and use %ld to print it. 1997-07-18 17:46:59 +00:00
christos
18ad58a639 PR/3866: bayer@informatik.uni-leipzig.de: core dump using xon script. 
cmdenviron is pointing to varlist.list; varlist gets reset everytime
you enter evalcommand, but cmdenviron does not. The wonders of global
variables...
 1997-07-15 17:49:15 +00:00
christos
1eb178df64 Fix Sparcworks warnings. 1997-07-15 17:45:53 +00:00
christos
bb5e01d099 Don't re-define setjmp/longjmp in the svr4 case 1997-07-15 17:44:32 +00:00
phil
1d304ac34c Add a missing ) in the description of the builtin "set". 1997-07-10 23:07:04 +00:00
phil
64eb899e5a Make code agree with man page in processing expansion of "$*". 
Fix from PR 2647.
 1997-07-07 20:41:10 +00:00
christos
5accccd051 Fix problem introduced in yesterday's commit that broke both signed and 
unsigned character machines. So that people don't have to reverse engineer
this again:
	mksyntax detects if characters are signed or not and builts a syntax
	table that has a base of 129 for signed characters or 1 for unsigned
	characters. This is so the largest negative signed char [-128] + the
	base == 1. 0 is special and means end of file in both cases. PEOF
	is -1 for the unsigned character case and -129 for the signed
	character case, so that syntax[PEOF + base] == syntax[0] == CEOF
	So PEOF has to be -1, but it is explicitly compared with
	unsigned characters on machines where characters are unsigned.
	The quick fix is to define UPEOF the (unsigned char) version of PEOF
	and use that. A better fix is to always use unsigned characters
	when referencing symbol table entries, but that would require
	extensive changes to the shell. So to summarize

	syntax[0] == CEOF, base + PEOF == 0

		unsigned	signed
	base	1		129
	PEOF	-1		-129
 1997-07-05 21:25:09 +00:00
christos
687f7852d9 Make the syntax tables work on machines where characters are unsigned. 1997-07-04 21:40:55 +00:00
christos
cd799663e4 Fix compiler warnings. 1997-07-04 21:01:48 +00:00
christos
28f5c57bd5 Don't roll own rules to build helper programs. 
Add WARNS
 1997-07-04 21:00:36 +00:00
christos
cbf48b75c7 PR/3827: Wolfgang Rupprecht: cd ./. core dumps 
Warning cleanups
 1997-07-04 20:59:40 +00:00
lukem
a1267d0c71 add auto-generated token.h to dependancy for ${OBJS}. 
not everyone runs "make depend" ...
 1997-06-16 02:42:38 +00:00
cjs
cddf57d923 Add documentation for ulimit command, courtsey of 
Eric Fischer <eric@fudge.uchicago.edu>.
 1997-05-23 19:40:30 +00:00
veego
3e90f9b423 Add mkinit.o mknodes.o mksyntax.o to CLEANFILES 1997-05-15 10:03:24 +00:00
mycroft
cc4a1553a1 Eliminate bogus redefinitions of standard targets. 1997-05-09 07:50:03 +00:00
gwr
10e180cc49 Back out the .PATH.c changes. The .depend problem (and others) 
will be fixed using the new .NOPATH make feature instead.
 1997-05-08 21:11:01 +00:00
gwr
012e528f2e Use .PATH.c: ... 1997-05-06 20:44:56 +00:00
christos
fb758fd82b PR/3452: Jerry Peek: Redirections of unopened fd to file failed. 
for arg in a b c
    do
	echo hi this is $arg 1>&3
    done 3> foo
 1997-04-21 12:38:25 +00:00
thorpej
062f26f33b - XXX Inhibit warnings on PowerPC for now - there are lots of 
"char is unsigned" problems here.
- Add rules for mkinit, mknodes, and mksyntax that use the HOST_*
  facilities, for cross-compiling.
 1997-04-17 08:13:26 +00:00
christos
3a468199cb #if __STDC__ -> #ifdef __STDC__ 1997-04-11 23:08:40 +00:00