tst.ret1.c revision 313485
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 <stdlib.h> 31#include <unistd.h> 32 33/* 34 * The canonical name should be 'go' since we prefer symbol names with fewer 35 * leading underscores. 36 */ 37 38int a = 100; 39 40int 41help(void) 42{ 43 return (a); 44} 45 46int 47go(void) 48{ 49 return (help() + 1); 50} 51 52static void 53handle(int sig) 54{ 55 go(); 56 exit(0); 57} 58 59int 60main(int argc, char **argv) 61{ 62 (void) signal(SIGUSR1, handle); 63 for (;;) 64 getpid(); 65} 66