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cddcfecf | 1 | /* Define and initialize the `__libc_enable_secure' flag. Generic version. |
b168057a | 2 | Copyright (C) 1996-2015 Free Software Foundation, Inc. |
c84142e8 | 3 | This file is part of the GNU C Library. |
cddcfecf | 4 | |
c84142e8 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
cddcfecf | 9 | |
c84142e8 UD |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
cddcfecf | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
cddcfecf RM |
18 | |
19 | /* This file is used in the static libc. For the shared library, | |
20 | dl-sysdep.c defines and initializes __libc_enable_secure. */ | |
21 | ||
22 | #include <unistd.h> | |
66539a73 | 23 | #include <libc-internal.h> |
cddcfecf | 24 | |
be4d8038 UD |
25 | /* If nonzero __libc_enable_secure is already set. */ |
26 | int __libc_enable_secure_decided; | |
cddcfecf RM |
27 | /* Safest assumption, if somehow the initializer isn't run. */ |
28 | int __libc_enable_secure = 1; | |
29 | ||
e34b0f29 UD |
30 | void |
31 | __libc_init_secure (void) | |
cddcfecf | 32 | { |
be4d8038 UD |
33 | if (__libc_enable_secure_decided == 0) |
34 | __libc_enable_secure = (__geteuid () != __getuid () | |
35 | || __getegid () != __getgid ()); | |
cddcfecf | 36 | } |