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336 Commits

Author SHA1 Message Date
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
christos
360e930d42 Make this work on systems that don't have quads 1997-04-11 23:08:15 +00:00
christos
2c8f740e5c __svr4__ -> __SVR4 1997-04-11 23:07:47 +00:00
christos
7ea7f895f5 Use #ifdef __STDC__ instead of #if __STDC__ 1997-04-11 23:06:51 +00:00
christos
92cdde85e8 Fix so that this compiles on systems without quads and remove the double 
inclusion of varargs/stdarg
 1997-04-11 23:05:43 +00:00
christos
70bb105c67 Pointer arithmetic on void * is illegal but gcc does not care. 1997-04-11 23:03:08 +00:00
christos
23745b89db Don't call getpwd() because if that fails the shell cannot start. (from scott) 1997-04-11 23:01:44 +00:00
christos
f726a3c453 Rename pread to preadfd 1997-04-11 23:00:40 +00:00
christos
3bddaec49b add forward declaration of union node; 1997-04-11 22:58:40 +00:00
christos
7efa5addb4 Track $TERM and call the appropriate editline(3) routine to update the 
terminal type.
 1997-04-11 22:45:38 +00:00
christos
a0fa692d3b PR/3352: From Hiroyuki Ito: ${#1} was not being expanded properly if there 
was a need to allocated another stack block.
 1997-03-18 18:54:40 +00:00
christos
7accaec421 NO_HISTORY->SMALL 1997-03-14 01:42:18 +00:00
christos
6042831b7e Fix problems with -DNO_HISTORY 1997-03-13 21:57:32 +00:00
mycroft
3a59e5e8e3 Set input files to close-on-exec mode. 1997-03-13 20:07:49 +00:00
mouse
412433b44c alternate -> alternative, per PR 2643 1997-03-08 13:26:20 +00:00
christos
6b7623a681 Fix PR/3289: upon initialization check if $PWD contains the right directory 
and use it. We also maintain $PWD now, like the rest of the
	     shells.
 1997-03-07 21:36:19 +00:00
christos
4a521d359f varisset fixes: 
- treat $0 specially since it is not in shellparams
	- check the number of parameters instead of walking
	  the parameters array to avoid checking against the
	  null terminated element.
 1997-03-03 19:26:18 +00:00
christos
edc5dadbab PR/3269: Off by one in varisset(), caused variable substitution not to 
count the last positional parameter as set.
 1997-03-01 19:33:29 +00:00
christos
a5aaf55cf3 Fix PR/3258 sh -c 'echo $0' causes segmentation fault. 1997-02-25 17:51:50 +00:00
christos
680690d33c add type builtin. 1997-02-06 23:24:52 +00:00
christos
6f224ae59f Fix parsing problem introduced in the previous ${10} fix, where $#digit 
or $digit# would get mis-parsed as a positional parameter.
 1997-01-26 18:05:34 +00:00
christos
633ceb6db5 - varisset(): In positional arguments, take into account VSNUL so that: 
set -- ""; echo ${1:-wwww} works.
- when expanding arithmetic, discard previous ifs recorded regions, since we
  are doing our own scanning. x=ab; echo $((${#x}+1)) now works.
- in ${var#word} fix two bugs:
   * if there was an exact match, there was an off-by-one bug in the
     comparison of the words. x=abcd; echo ${x#abcd}
   * if there was no match, the stack region was not adjusted and the rest
     of the word was getting written in the wrong place. x=123; echo ${x#abc}X
 1997-01-24 17:26:28 +00:00
christos
3d5f212ba8 enable parsing of multi-digit positional arguments i.e. ${10} works and it 
is not a bad substitution.
 1997-01-24 17:15:56 +00:00