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reset_getopt: New function (borrowed from e2fsprogs)

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Robert Millan 2006-02-13 09:02:17 +00:00 committed by Guillem Jover
parent 19cc95400b
commit c849ba32af
4 changed files with 62 additions and 3 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2006-02-13 Robert Millan <rmh@aybabtu.com>
Add reset_getopt (borrowed from e2fsprogs).
* reset_getopt.c: New.
* Versions: Add reset_getopt.
* Makefile: Add reset_getopt.c.
* debian/copyright: Add license (GPL).
2006-02-10 Robert Millan <rmh@aybabtu.com> 2006-02-10 Robert Millan <rmh@aybabtu.com>
Add errc, warnc, verrc and vwarnc. Add errc, warnc, verrc and vwarnc.

2
Makefile
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@ -4,7 +4,7 @@
# $Id$ # $Id$
# #
LIB_SRCS = arc4random.c err.c fgetln.c inet_net_pton.c strlcat.c strlcpy.c md5c.c fmtcheck.c LIB_SRCS = arc4random.c err.c fgetln.c inet_net_pton.c reset_getopt.c strlcat.c strlcpy.c md5c.c fmtcheck.c
LIB_INCLUDES = include/bsd/err.h include/bsd/ip_icmp.h include/bsd/random.h include/bsd/queue.h include/bsd/md5.h include/bsd/string.h include/bsd/bsd.h include/bsd/stdlib.h LIB_INCLUDES = include/bsd/err.h include/bsd/ip_icmp.h include/bsd/random.h include/bsd/queue.h include/bsd/md5.h include/bsd/string.h include/bsd/bsd.h include/bsd/stdlib.h

4
Versions
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@ -6,8 +6,8 @@ LIBBSD_0.0 {
fgetwln; fgetwln;
fmtcheck; fmtcheck;
inet_net_pton; inet_net_pton;
strlcpy; reset_getopt;
strlcat; strlcpy; strlcat;
MD5Init; MD5Init;
MD5Update; MD5Update;
MD5Pad; MD5Pad;

51
reset_getopt.c Normal file
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@ -0,0 +1,51 @@
/*
* util.c --- utilities for the debugfs program
*
* Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
* redistributed under the terms of the GNU Public License.
*
*/
/* Enable getopt variables */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif
#include <unistd.h>
/* FIXME */
#ifndef __GLIBC__
# define HAVE_OPTRESET 1
#endif
/*
* This function resets the libc getopt() function, which keeps
* internal state. Bad design! Stupid libc API designers! No
* biscuit!
*
* BSD-derived getopt() functions require that optind be reset to 1 in
* order to reset getopt() state. This used to be generally accepted
* way of resetting getopt(). However, glibc's getopt()
* has additional getopt() state beyond optind, and requires that
* optind be set zero to reset its state. So the unfortunate state of
* affairs is that BSD-derived versions of getopt() misbehave if
* optind is set to 0 in order to reset getopt(), and glibc's getopt()
* will core ump if optind is set 1 in order to reset getopt().
*
* More modern versions of BSD require that optreset be set to 1 in
* order to reset getopt(). Sigh. Standards, anyone?
*
* We hide the hair here.
*/
void
reset_getopt (void)
{
#ifdef __GLIBC__
optind = 0;
#else
optind = 1;
#endif
#ifdef HAVE_OPTRESET
optreset = 1; /* Makes BSD getopt happy */
#endif
}