glibc/stdlib/getsubopt.c
Ulrich Drepper 6952e59e25 update from main archive 970203
1997-02-04 02:08  Ulrich Drepper  <drepper@cygnus.com>

	* Version 2.0.1 net release.

1997-02-03 23:34  Stephen L Moshier  <moshier@world.std.com>

	* sysdeps/libm-ieee754/s_tanhl.c: Fix backwards result sign.

1997-02-03 19:59  Ulrich Drepper  <drepper@cygnus.com>

	* stdlib/getsubopt.c: Don't return `=' for suboption which has
	a parameter.  Reported by Gary L. Hennigan <glhenni@cs.sandia.gov>.

1997-02-03 18:20  Thorsten Kukuk  <kukuk@weber.uni-paderborn.de>

	* nis/rpcsvc/yp_proh.h (ypresp_key_val): Also change order of
	values as in yp.x and yp.h.

1997-02-03 16:58  Ulrich Drepper  <drepper@cygnus.com>

	* nis/rpcsvc/yp.x (struct ypresp_key_val): Revert patch from
	1997-02-03 02:17.  Sun's implementation internally corrects
	this bug but we don't want to hide this from the user.
	* nis/rpcsvc/yp.h: Likewise.

1997-02-01 18:28  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/net/ppp_defs.h: Protect against multiple
	inclusion.

1997-02-02 14:56  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/nss.texi, manual/pattern.texi, manual/string.texi: Doc
	fixes.

1997-02-02 11:51  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* MakeTAGS (sysdep-sources, sysdep-headers): New variables.
	(all-sources, all-headers): Use them instead of $(sources) and
	$(headers) when searching in sysdep directories.

1997-02-02 11:49  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules (REAL_MAKE_VERSION): Use internal make function
	instead of shelling out.

1997-02-02 11:47  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* time/Makefile (install-test-data): Remove mkdir command, zic can
	handle that gracefully.

1997-02-03 14:07  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/asm-syntax.h: Add back file which got lost sometime
	somehow.

1997-02-02 07:46  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sunrpc/Makefile: Check $(cross-compiling) only after including
	../Makeconfig.
	($(objpfx)rpcsvc/%.h, $(objpfx)x%.c): Add empty command to force
	being considered as a rule.
	(generated): Add stamp files before the inclusion of Makerules to
	magically mark them as not being intermediate via the `generated'
	target.
1997-02-04 02:01:01 +00:00

78 lines
2.4 KiB
C

/* Parse comma separate list into words.
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdlib.h>
#include <string.h>
/* Parse comma separated suboption from *OPTIONP and match against
strings in TOKENS. If found return index and set *VALUEP to
optional value introduced by an equal sign. If the suboption is
not part of TOKENS return in *VALUEP beginning of unknown
suboption. On exit *OPTIONP is set to the beginning of the next
token or at the terminating NUL character. */
int
getsubopt (optionp, tokens, valuep)
char **optionp;
const char *const *tokens;
char **valuep;
{
char *endp, *vstart;
int cnt;
if (**optionp == '\0')
return -1;
/* Find end of next token. */
endp = strchr (*optionp, ',');
if (endp == NULL)
endp = strchr (*optionp, '\0');
/* Find start of value. */
vstart = memchr (*optionp, '=', endp - *optionp);
if (vstart == NULL)
vstart = endp;
/* Try to match the characters between *OPTIONP and VSTART against
one of the TOKENS. */
for (cnt = 0; tokens[cnt] != NULL; ++cnt)
if (memcmp (*optionp, tokens[cnt], vstart - *optionp) == 0
&& tokens[cnt][vstart - *optionp] == '\0')
{
/* We found the current option in TOKENS. */
*valuep = vstart != endp ? vstart + 1 : NULL;
if (*endp != '\0')
*endp++ = '\0';
*optionp = endp;
return cnt;
}
/* The current suboption does not match any option. */
*valuep = *optionp;
if (*endp != '\0')
*endp++ = '\0';
*optionp = endp;
return -1;
}