1 /*
2 * Copyright (c) 1997 - 2007 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #include "iprop.h"
35 RCSID("$Id$");
36
37 sig_atomic_t exit_flag;
38
39 static RETSIGTYPE
sigterm(int sig)40 sigterm(int sig)
41 {
42 exit_flag = sig;
43 }
44
45 void
setup_signal(void)46 setup_signal(void)
47 {
48 #ifdef HAVE_SIGACTION
49 {
50 struct sigaction sa;
51
52 sa.sa_flags = 0;
53 sa.sa_handler = sigterm;
54 sigemptyset(&sa.sa_mask);
55
56 sigaction(SIGINT, &sa, NULL);
57 sigaction(SIGTERM, &sa, NULL);
58 sigaction(SIGXCPU, &sa, NULL);
59
60 sa.sa_handler = SIG_IGN;
61 sigaction(SIGPIPE, &sa, NULL);
62 }
63 #else
64 signal(SIGINT, sigterm);
65 signal(SIGTERM, sigterm);
66 #ifndef NO_SIGXCPU
67 signal(SIGXCPU, sigterm);
68 #endif
69 #ifndef NO_SIGPIPE
70 signal(SIGPIPE, SIG_IGN);
71 #endif
72 #endif
73 }
74