1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <signal.h> 28 #include <unistd.h> 29 30 /* 31 * The canonical name should be 'go' since we prefer symbol names with fewer 32 * leading underscores. 33 */ 34 35 int a = 100; 36 37 int 38 help(void) 39 { 40 return (a); 41 } 42 43 int 44 go(void) 45 { 46 return (help() + 1); 47 } 48 49 static void 50 handle(int sig) 51 { 52 go(); 53 exit(0); 54 } 55 56 int 57 main(int argc, char **argv) 58 { 59 (void) signal(SIGUSR1, handle); 60 for (;;) 61 getpid(); 62 } 63