fdacb17d48
1998-06-29 12:27 Ulrich Drepper <drepper@cygnus.com> * argp/argp.h: Use __PMT instead of __P for function pointer. * iconv/gconv.h: Likewise. * io/fts.h: Likewise. * io/ftw.h: Likewise. * libio/libio.h: Likewise. * malloc/mcheck.h: Likewise. * misc/search.h: Likewise. * posix/glob.h: Likewise. * resolv/resolv.h: Likewise. * signal/signal.h: Likewise. * stdlib/stdlib.h: Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/bits/siginfo.h: Likewise. 1998-06-26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makeconfig (CPPFLAGS): Use $($(subdir)-CPPFLAGS) only once. 1998-06-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * posix/wordexp.c (parse_param): Fix memory leak. 1998-06-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libc.map: Export _IO_ftrylockfile. 1998-06-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/aio_sigqueue.c: Use get[pu]id instead of __get[pu]id. 1998-06-28 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/dl-misc.c (_dl_debug_message): Don't cache the pid. * elf/dl-runtime.c (_dl_object_relocation_scope): Avoid adding the same search list twice. 1998-06-29 Andreas Jaeger <aj@arthur.rhein-neckar.de> * login/programs/utmpd.c (handle_requests): Set and use maximal fd used to optimize loop/select. 1998-06-24 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/init-first.c: Don't define __libc_pid. * sysdeps/unix/sysv/linux/init-first.c: Likewise. * sysdeps/mach/hurd/i386/init-first.c: Likewise. * sysdeps/mach/hurd/mips/init-first.c: Likewise. * sysdeps/arm/init-first.c: Likewise. * posix/getopt_init.c: Don't use __libc_pid. * sysdeps/unix/sysv/linux/aio_sigqueue.c: Likewise. * sysdeps/unix/sysv/linux/sigqueue.c: Likewise. * libc.map: Remove __libc_uid and __libc_pid.
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/* Perform additional initialization for getopt functions in GNU libc.
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Copyright (C) 1997, 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Attention: this file is *not* necessary when the GNU getopt functions
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are used outside the GNU libc. Some additional functionality of the
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getopt functions in GNU libc require this additional work. */
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#include <getopt.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <stdio-common/_itoa.h>
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/* Variable to synchronize work. */
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char *__getopt_nonoption_flags;
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/* Remove the environment variable "_<PID>_GNU_nonoption_argv_flags_" if
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it is still available. If the getopt functions are also used in the
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application it does not exist anymore since it was saved for the use
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in getopt. */
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void
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__getopt_clean_environment (char **env)
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{
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/* Bash 2.0 puts a special variable in the environment for each
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command it runs, specifying which ARGV elements are the results
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of file name wildcard expansion and therefore should not be
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considered as options. */
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static const char envvar_tail[] = "_GNU_nonoption_argv_flags_=";
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char var[100];
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char *cp, **ep;
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size_t len;
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/* Construct the "_<PID>_GNU_nonoption_argv_flags_=" string. We must
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not use `sprintf'. */
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cp = memcpy (&var[sizeof (var) - sizeof (envvar_tail)], envvar_tail,
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sizeof (envvar_tail));
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cp = _itoa_word (__getpid (), cp, 10, 0);
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*--cp = '_';
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len = (var + sizeof (var) - 1) - cp;
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for (ep = env; *ep != NULL; ++ep)
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if (!strncmp (*ep, cp, len))
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{
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/* Found it. Store this pointer and move later ones back. */
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char **dp = ep;
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__getopt_nonoption_flags = &(*ep)[len];
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do
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dp[0] = dp[1];
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while (*dp++);
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/* Continue the loop in case the name appears again. */
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}
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}
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