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glibc/stdlib/secure-getenv.c
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/* Copyright (C) 1991-2016 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 | |
<http://www.gnu.org/licenses/>. */ | |
#include <stdlib.h> | |
#include <unistd.h> | |
#include <shlib-compat.h> | |
/* Some programs and especially the libc itself have to be careful | |
what values to accept from the environment. This special version | |
checks for SUID or SGID first before doing any work. */ | |
char * | |
__libc_secure_getenv (const char *name) | |
{ | |
return __libc_enable_secure ? NULL : getenv (name); | |
} | |
weak_alias (__libc_secure_getenv, secure_getenv) | |
libc_hidden_weak (__libc_secure_getenv) | |
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_17) | |
compat_symbol (libc, __libc_secure_getenv, __secure_getenv, GLIBC_2_0); | |
#endif |