1 /* $NetBSD: signal.c,v 1.3 2021/08/14 16:14:58 christos Exp $ */
2
3 /* $OpenLDAP$ */
4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 *
6 * Copyright 1998-2021 The OpenLDAP Foundation.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
11 * Public License.
12 *
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
16 */
17
18 #include <sys/cdefs.h>
19 __RCSID("$NetBSD: signal.c,v 1.3 2021/08/14 16:14:58 christos Exp $");
20
21 #include "portable.h"
22
23 #ifdef HAVE_SIGACTION
24 #include <ac/string.h>
25 #include <ac/signal.h>
26
27 lutil_sig_t
lutil_sigaction(int sig,lutil_sig_t func)28 lutil_sigaction(int sig, lutil_sig_t func)
29 {
30 struct sigaction action, oaction;
31
32 memset( &action, '\0', sizeof(action) );
33
34 action.sa_handler = func;
35 sigemptyset( &action.sa_mask );
36 #ifdef SA_RESTART
37 action.sa_flags |= SA_RESTART;
38 #endif
39
40 if( sigaction( sig, &action, &oaction ) != 0 ) {
41 return NULL;
42 }
43
44 return oaction.sa_handler;
45 }
46 #endif
47