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 40 sigterm(int sig) 41 { 42 exit_flag = sig; 43 } 44 45 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