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286 Commits

Author SHA1 Message Date
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
tls 48250187e6 kill 'register' 1997-01-11 02:04:27 +00:00
cjs 5678a13f1b Re-introduce some code from 1.14 (with modifications) to make the 
shell's idea of the current working directory match reality when
symlinks (or anything else we can't stat) are traversed with the
cd command. However, this does not print out the cwd after cd
traverses symlinks, as it used to, though the capability is still
there should one want to use it.
 1996-12-22 08:34:34 +00:00
christos a00e49c200 Getopts bugs again (I'll never get this right). 
- make sure that OPTIND is set correctly even in the absence of options.
- don't keep stale state between getopts calls.
 1996-12-15 20:37:09 +00:00
christos 340077b543 - fix parsing bug reported by mycroft: ! was only recognized in the beginning 
of pipelines. Now we are recognizing it everywhere like ksh, so:

	! if [ a = b ]; then ! echo c && ! true; else ! echo d; fi

  works.
 1996-11-25 20:22:00 +00:00
christos 9530a32719 Fix bug in getopts code where the argument list got truncated. 
From Todd Miller.
 1996-11-24 20:48:01 +00:00
christos 07aeb5b266 remove a debugging printf that was left from the last POSIX error code fixes. 1996-11-09 01:04:07 +00:00
christos ccce082dd2 Fix miscellaneous getopts problems: 
- the 3 argument version of getopts would not reset properly
- OPTARG did not get cleared after a non argument option was found
- OPTIND was not set properly after a non argument option.
 1996-11-06 01:17:10 +00:00
christos 846dce0ee3 Fix problems that gcc -Wall found (from Todd Miller, OpenBSD) 1996-11-02 18:26:03 +00:00
christos a4ad4c0efc A correction to the previous patch from Todd Miller. 1996-11-02 18:07:08 +00:00
christos 27e15e5bbc echo ${1:-empty} did not do the substitution; from Todd Miller (OpenBSD) 1996-11-02 17:47:41 +00:00
cgd 8ba64baaaf add builtins.h to the list of (built) headers depended on by ${OBJS}, so 
make from 'cleandir' works.
 1996-10-22 13:22:19 +00:00
abrown e613224229 Remove leftover printf("here") from last change. 1996-10-19 02:38:36 +00:00
christos bc73cf950a PR/2808: Remove trailing whitespace (from FreeBSD) 1996-10-16 15:45:03 +00:00
christos afb80e9b13 PR/2808: Add a definition for warnx() (from FreeBSD; currently unused) 1996-10-16 15:28:10 +00:00
christos 2b0a187f34 PR/2808: Use .Nm macro properly. (from FreeBSD) 1996-10-16 15:27:03 +00:00
christos 1a523dd56b PR/2808: - Don't use p++ in macros. 
- Hash using unsigned numbers.
	 (from FreeBSD)
 1996-10-16 15:24:31 +00:00
christos 68b1dcea6d PR/2808: Don't define DEBUG and #ifdef out functions not needed when DEBUG 
is not defined (from FreeBSD).
 1996-10-16 15:21:49 +00:00
christos 3b66e0cada PR/2808: Add HISTORY section and documentation of getopts. (from FreeBSD) 1996-10-16 15:20:01 +00:00
christos da8c1311a3 PR/2808: fix redirection to the same file descriptor 
better error messages for failed pipes
	 (from FreeBSD)
 1996-10-16 15:16:04 +00:00
christos d8c242f0ae PR/2808: - detect eof inside backquotes 
- handle && and || shortcircuits properly
	 - tokens.def -> tokens.h
	 (from FreeBSD)
 1996-10-16 14:53:23 +00:00
christos 10a76271de No need to have 2 declarations for the same constant string, one for K&R and 
one for STDC...
 1996-10-16 14:51:24 +00:00
christos fd8c99438e PR/2808: POSIX 1003.2: first arg after -c cmd is $0, remainder $1... 
(from FreeBSD)
 1996-10-16 14:49:56 +00:00
christos 14185e5152 PR/2808: Kill use of error2() (from FreeBSD) 1996-10-16 14:49:03 +00:00
christos 71ab1d0aed PR/2808: tokens.def -> tokens.h 1996-10-16 14:47:49 +00:00
christos 03ba3cf0d6 PR/2808: Use the <ctype.h> functions instead of our homegrown tables to 
determine if a character is alpha or alphanumeric, so that NLS
	 works... now if only our NLS really worked... (from FreeBSD).
 1996-10-16 14:46:35 +00:00
christos f6c00506fc PR/2808: Remove extraneous newline from error message (from FreeBSD) 1996-10-16 14:44:28 +00:00
christos 00a9e38ee8 PR/2808: #undef things that we #define to avoid duplicate definitions. 
(from FreeBSD)
 1996-10-16 14:43:37 +00:00
christos a20d79429a PR/2808: Don't include <sgtty.h> unless OLD_TTY_DRIVER is defined. 
Remove extraneous newline from error messages.
 1996-10-16 14:42:20 +00:00
christos 435812e77d PR/2808: Remove extraneous newlines from error routines (from FreeBSD) 1996-10-16 14:40:32 +00:00
christos 4b99c4d748 PR/2808: Fix parsing of $n where n > 9 (from FreeBSD) 1996-10-16 14:38:58 +00:00
christos 2a9c11dd53 PR/287: Shell does not exit with 126/127 when permission denied/ 
command not found. Add extra exception type and generalize
	error handling routines to take that exception type. Use
	a global variable exerrno to keep the last exec error.
 1996-10-16 14:35:42 +00:00
christos 886c875a97 PR/287: Exit with 127/126 when command is not found/permission denied. 
PR/2808: don't bomb out on "set -e; false && true"
 1996-10-16 14:31:57 +00:00
christos dd6abbc5c3 PR/2808: Handle cd "". This is for systems where "" != "." 1996-10-16 14:29:42 +00:00
christos aded8d4c14 PR/2808: tokens.def -> tokens.h 1996-10-16 14:24:56 +00:00
christos 3ec8ea2b0e PR/2808: Depend and clean fixes from FreeBSD 1996-10-16 14:23:51 +00:00
thorpej 47f181309b If getcwd() fails, dang it, I want to know _why_. 1996-09-18 22:47:48 +00:00
mycroft c65b90450d ioctl(TIOC[GS]PGRP) -> tc[gs]etpgrp() 1996-09-17 14:44:05 +00:00
christos 4d9c694460 Apply PR#2721 from VaX#n8: make man page more lucid in places. 1996-09-02 21:28:21 +00:00
christos 29cad877cd Don't infinite loop with: 
unset var
	echo ${var:=}
 1996-09-02 21:25:52 +00:00
christos beb57fb35d - Add function callback capability when variables are set. 
- Add setvarsafe that returns an error instead of longjmp() to the
  error code.
 1996-06-25 16:49:05 +00:00
christos cc31700a92 - Add getoptsreset to be used as a callback function when OPTIND is set. 
This is used to implement the POSIX behavior when OPTIND=1
- Call setvarsafe instead of setvar. If one ran
	"getopts optstr badvariable"
  where badvariable contained an illegal variable name, there was no way
  to recover, since setvar() would longjmp on the error.
 1996-06-25 16:47:43 +00:00
christos 02b3c16118 change sethistsize() to take the history size as an argument so it can 
be used directly by the new variable callback functions.
 1996-06-25 16:43:33 +00:00
christos 9a738ef22d const poisoning. 1996-06-25 16:40:38 +00:00
christos 70ad20e9f1 Include header files to get function prototypes; don't use home grown ones. 1996-06-25 16:40:06 +00:00
christos 0bc88b2434 getopts fixes: 
1. OPTIND value was not computed correctly when the argument was part of the
   option string (i.e. for "l:" "-l 1" was working "-l1" was not). (PR/2505).
2. OPTARG was not being unset in case of errors [in the non POSIX error case].
3. optvar could be set to random values.
4. Option string starting with a : was not treated specially as POSIX
   specifies (if the option string starts with a :, then there is no
   error printed when there are missing option arguments or illegal options,
   and OPTARG and optvar are being set specially).
5. Implemented getopts "opts" optvar [arg]. The optional argument case
   was not implemented.

To do:
- what does Posix say about resetting the getopts state? Bash does it
  by setting OPTIND=0; is that correct? Should we be doing the same thing?
- should we be using getopt(3) for everything internal to the shell? Is that
  feasible because we might need to handle multiple invocations at once.
 1996-06-04 21:00:09 +00:00
christos 66824391d1 Fix PR/2504: return with no args returns 0 instead of the return value of 
the previous command in functions
 1996-06-03 12:21:17 +00:00
cgd edc0ef345c Fix growstackblock() 'newlen' calculations: 
(1) it needs to be ALIGNed for both halves of the 'if,' and
	(2) if you're going to claim that you now have ALIGN(newlen)
	    bytes left, you should have actually allocated
	    ALIGN(newlen), rather than just 'newlen' bytes.
 1996-05-20 14:49:32 +00:00
christos 55a41e8abb Close PR/2384 backquoted backslash-newline was not eaten. 1996-05-09 19:40:08 +00:00
pk 0b9acf16f8 Return zero status if `else' clause is empty. 1996-03-06 14:49:29 +00:00
christos b09ffc42b1 - parser.c: Fix prompting in old style backquote expansion. Fixes PR/2139 
and many user complaints why the shell hangs in echo "`"
- eval.c:   Fix exitstatus invalid resetting in `if' statements were:
		if (exit 3); then
			echo foo $?
		else
			echo bar $?
		fi
	    printed 'bar 0' instead of bar 3
 1996-03-05 21:03:52 +00:00