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c23de0aa | 1 | /* Avoid all the buffer overflow messages on stderr. |
d614a753 | 2 | Copyright (C) 2015-2020 Free Software Foundation, Inc. |
c23de0aa FW |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
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. | |
9 | ||
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 | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
c23de0aa FW |
18 | |
19 | #include <support/support.h> | |
20 | ||
21 | #include <fcntl.h> | |
22 | #include <paths.h> | |
23 | #include <stdlib.h> | |
24 | #include <unistd.h> | |
25 | ||
26 | void | |
27 | ignore_stderr (void) | |
28 | { | |
29 | int fd = open (_PATH_DEVNULL, O_WRONLY); | |
30 | if (fd == -1) | |
31 | close (STDERR_FILENO); | |
32 | else | |
33 | { | |
34 | dup2 (fd, STDERR_FILENO); | |
35 | close (fd); | |
36 | } | |
37 | setenv ("LIBC_FATAL_STDERR_", "1", 1); | |
38 | } |