glibc/sysdeps/generic/enbl-secure.c
Roland McGrath cddcfecfd1 Sat Jul 27 13:02:09 1996 Ulrich Drepper <drepper@cygnus.com>
* elf/rtld.c (dl_main): Ignore arguments when environment variable
 	LD_TRACE_LOADED_OBJECTS is set.

Sun Jul 28 19:42:51 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Initialize
	__libc_enable_secure instead of _dl_secure.
	* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start): Likewise.
	* elf/dl-load.c (_dl_map_object): Check __libc_enable_secure instead
	of _dl_secure.
	* elf/Makefile (routines): Add enbl-secure.
	(elide-routines.so): Here too.
	* sysdeps/generic/enbl-secure.c: New file.
	* posix/unistd.h [__USE_GNU]: Declare `__libc_enable_secure' flag.
	* elf/dl-support.c (_dl_secure): Variable removed.
	* elf/rtld.c: Likewise.  Replace all uses with __libc_enable_secure.

Sun Jul 28 19:26:40 1996  David S. Miller  <dm@neteng.engr.sgi.com>

	* sysdeps/mips/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
	Declare _dl_runtime_resolve with __attribute__ ((unused)) so the
	compiler doesn't elide it.
	(elf_machine_rel): Follow Jul 14 change in sysdeps/i386/dl-machine.h.
1996-07-29 00:18:42 +00:00

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C

/* Define and initialize the `__libc_enable_secure' flag. Generic version.
Copyright (C) 1996 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* This file is used in the static libc. For the shared library,
dl-sysdep.c defines and initializes __libc_enable_secure. */
#include <unistd.h>
/* Safest assumption, if somehow the initializer isn't run. */
int __libc_enable_secure = 1;
static void __attribute__ ((unused, constructor))
init_secure (void)
{
__libc_enable_secure = (__geteuid () != __getuid () ||
__getegid () != __getgid ());
}