1/*	$OpenBSD: w_sigaction.c,v 1.1 2015/10/23 04:39:24 guenther Exp $ */
2/*
3 * Copyright (c) 2005 Ted Unangst <tedu@openbsd.org>
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18/*
19 * signals
20 */
21
22#include <signal.h>
23#include <errno.h>
24
25int
26WRAP(sigaction)(int sig, const struct sigaction *act, struct sigaction *oact)
27{
28	struct sigaction sa;
29
30	if (sig == SIGTHR) {
31		errno = EINVAL;
32		return (-1);
33	}
34	if (act != NULL && sigismember(&act->sa_mask, SIGTHR)) {
35		sa = *act;
36		sigdelset(&sa.sa_mask, SIGTHR);
37		act = &sa;
38	}
39	return (sigaction(sig, act, oact));
40}
41DEF_WRAP(sigaction);
42