1 | /* Copyright (C) 2002-2018 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. |
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 |
17 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | |
20 | /* This is no complete implementation. The file is meant to be |
21 | included in the real implementation to provide the wrapper around |
22 | __libc_sigaction. */ |
23 | |
24 | #include <nptl/pthreadP.h> |
25 | |
26 | /* We use the libc implementation but we tell it to not allow |
27 | SIGCANCEL or SIGTIMER to be handled. */ |
28 | #define LIBC_SIGACTION 1 |
29 | |
30 | |
31 | int |
32 | __sigaction (int sig, const struct sigaction *act, struct sigaction *oact) |
33 | { |
34 | if (__glibc_unlikely (sig == SIGCANCEL || sig == SIGSETXID)) |
35 | { |
36 | __set_errno (EINVAL); |
37 | return -1; |
38 | } |
39 | |
40 | return __libc_sigaction (sig, act, oact); |
41 | } |
42 | libc_hidden_weak (__sigaction) |
43 | weak_alias (__sigaction, sigaction) |
44 | |