1 /* Copyright (C) 1991-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <stdlib.h>
19 #include <unistd.h>
20
21 #include <shlib-compat.h>
22
23 /* Some programs and especially the libc itself have to be careful
24 what values to accept from the environment. This special version
25 checks for SUID or SGID first before doing any work. */
26 char *
__libc_secure_getenv(const char * name)27 __libc_secure_getenv (const char *name)
28 {
29 return __libc_enable_secure ? NULL : getenv (name);
30 }
31 weak_alias (__libc_secure_getenv, secure_getenv)
32 libc_hidden_weak (__libc_secure_getenv)
33
34 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_17)
35 compat_symbol (libc, __libc_secure_getenv, __secure_getenv, GLIBC_2_0);
36 #endif
37