1 /* Copyright (C) 1991-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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/>. */
20 #include <internal-signals.h>
22 /* If ACT is not NULL, change the action for SIG to *ACT.
23 If OACT is not NULL, put the old action for SIG in *OACT. */
25 __sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
27 if (sig <= 0 || sig >= NSIG || __is_internal_signal (sig))
33 return __libc_sigaction (sig, act, oact);
35 libc_hidden_def (__sigaction)
36 weak_alias (__sigaction, sigaction)