1 /* $OpenBSD: pause.c,v 1.2 2001/11/11 23:26:35 deraadt Exp $ */ 2 /* 3 * Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors, 4 * proven@mit.edu 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 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Chris Provenzano, 17 * the University of California, Berkeley, and contributors. 18 * 4. Neither the name of Chris Provenzano, the University, nor the names of 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO, THE REGENTS OR 26 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 27 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * Test pause() 37 */ 38 39 #include <stdio.h> 40 #include <signal.h> 41 #include <string.h> 42 #include <unistd.h> 43 #include "test.h" 44 45 int gotsig = 0; 46 47 void 48 handler(sig) 49 int sig; 50 { 51 int save_errno = errno; 52 char buf[8192]; 53 54 snprintf(buf, sizeof buf, "%s\n", strsignal(sig)); 55 write(STDOUT_FILENO, buf, strlen(buf)); 56 errno = save_errno; 57 } 58 59 int 60 main() 61 { 62 sigset_t all; 63 pid_t self; 64 65 ASSERT(signal(SIGHUP, handler) != SIG_ERR); 66 CHECKe(self = getpid()); 67 CHECKe(sigemptyset(&all)); 68 CHECKe(sigaddset(&all, SIGHUP)); 69 CHECKe(sigprocmask(SIG_BLOCK, &all, NULL)); 70 CHECKe(kill(self, SIGHUP)); 71 CHECKe(pause()); 72 SUCCEED; 73 } 74