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/* Define and initialize the `__libc_enable_secure' flag. Generic version.
Copyright (C) 1996-2021 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* This file is used in the static libc. For the shared library,
dl-sysdep.c defines and initializes __libc_enable_secure. */
/* Mark symbols hidden in static PIE for early self relocation to work. */
#if BUILD_PIE_DEFAULT
# pragma GCC visibility push(hidden)
#endif
#include <startup.h>
#include <libc-internal.h>
/* If nonzero __libc_enable_secure is already set. */
int __libc_enable_secure_decided;
/* Safest assumption, if somehow the initializer isn't run. */
int __libc_enable_secure = 1;
void
__libc_init_secure (void)
{
if (__libc_enable_secure_decided == 0)
__libc_enable_secure = (startup_geteuid () != startup_getuid ()
|| startup_getegid () != startup_getgid ());
}
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