glibc/sysdeps/generic/dl-environ.c
Andreas Jaeger 48896b9dba Update.
2000-12-05  Andreas Jaeger  <aj@suse.de>

	* elf/dl-misc.c (_dl_sysdep_read_whole_file): Mark as
	internal_function.
	* sysdeps/generic/dl-cache.c (_dl_load_cache_lookup): Likewise.
	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start_cleanup): Likewise.

	* sysdeps/generic/dl-cache.c: Remove declaration of
	_dl_sysdep_read_whole_file.

	* elf/dl-load.c (_dl_map_object): Remove declaration of
	_dl_load_cache_lookup.

	* sysdeps/generic/ldsodefs.h: Add declarations of
	_dl_load_cache_lookup, _dl_unload_cache,
	_dl_sysdep_read_whole_file, _dl_sysdep_start and
	_dl_sysdep_start_cleanup.

	* elf/rtld.c: Remove prototypes that are defined in ldsodefs.h
	now.

	* elf/dl-misc.c: Include <ldsodefs.h> to get prototypes.
	* sysdeps/generic/dl-environ.c: Likewise.

	* stdio-common/printf_fp.c: Include <gmp.h> instead of
	<stdlib/gmp.h>.
	* math/atest-exp.c: Likewise.
	* math/atest-exp2.c: Likewise.
	* math/atest-sincos.c: Likewise.
	* stdio-common/_itoa.c: Likewise.
	* stdio-common/_itowa.c: Likewise.

	* include/gmp.h: New file with internal prototypes.

	* sysdeps/generic/longjmp.c: Move _longjmp_unwind declaration from
	here to...
	* include/setjmp.h: ...here.

	* locale/Makefile (routines): Remove codeset_name since it's not
	needed anywhere.

	* locale/codeset_name.c: Removed.
2000-12-05 17:34:28 +00:00

73 lines
1.9 KiB
C

/* Environment handling for dynamic loader.
Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 <string.h>
#include <ldsodefs.h>
extern char **_environ;
/* Walk through the environment of the process and return all entries
starting with `LD_'. */
char *
internal_function
_dl_next_ld_env_entry (char ***position)
{
char **current = *position;
char *result = NULL;
if (current == NULL)
/* We start over. */
current = _environ;
while (result == NULL && *current != NULL)
{
if ((*current)[0] == 'L' && (*current)[1] == 'D' && (*current)[2] == '_')
result = *current;
++current;
}
/* Save current position for next visit. */
*position = current;
return result;
}
void
unsetenv (const char *name)
{
const size_t len = strlen (name);
char **ep;
ep = _environ;
while (*ep != NULL)
if (!strncmp (*ep, name, len) && (*ep)[len] == '=')
{
/* Found it. Remove this pointer by moving later ones back. */
char **dp = ep;
do
dp[0] = dp[1];
while (*dp++);
/* Continue the loop in case NAME appears again. */
}
else
++ep;
}