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 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <signal.h> 30 #include <unistd.h> 31 32 /* 33 * The canonical name should be 'go' since we prefer symbol names with fewer 34 * leading underscores. 35 */ 36 37 int a = 100; 38 39 int 40 help(void) 41 { 42 return (a); 43 } 44 45 int 46 go(void) 47 { 48 return (help() + 1); 49 } 50 51 static void 52 handle(int sig) 53 { 54 go(); 55 exit(0); 56 } 57 58 int 59 main(int argc, char **argv) 60 { 61 (void) signal(SIGUSR1, handle); 62 for (;;) 63 getpid(); 64 } 65