1/* $NetBSD$ */ 2 3/* 4 * Copyright (c) 1997 - 2007 Kungliga Tekniska H��gskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36#include "iprop.h" 37__RCSID("$NetBSD$"); 38 39sig_atomic_t exit_flag; 40 41static RETSIGTYPE 42sigterm(int sig) 43{ 44 exit_flag = sig; 45} 46 47void 48setup_signal(void) 49{ 50#ifdef HAVE_SIGACTION 51 { 52 struct sigaction sa; 53 54 sa.sa_flags = 0; 55 sa.sa_handler = sigterm; 56 sigemptyset(&sa.sa_mask); 57 58 sigaction(SIGINT, &sa, NULL); 59 sigaction(SIGTERM, &sa, NULL); 60 sigaction(SIGXCPU, &sa, NULL); 61 62 sa.sa_handler = SIG_IGN; 63 sigaction(SIGPIPE, &sa, NULL); 64 } 65#else 66 signal(SIGINT, sigterm); 67 signal(SIGTERM, sigterm); 68#ifndef NO_SIGXCPU 69 signal(SIGXCPU, sigterm); 70#endif 71#ifndef NO_SIGPIPE 72 signal(SIGPIPE, SIG_IGN); 73#endif 74#endif 75} 76