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
help(void)40 help(void)
41 {
42 	return (a);
43 }
44 
45 int
go(void)46 go(void)
47 {
48 	return (help() + 1);
49 }
50 
51 static void
handle(int sig)52 handle(int sig)
53 {
54 	go();
55 	exit(0);
56 }
57 
58 int
main(int argc,char ** argv)59 main(int argc, char **argv)
60 {
61 	(void) signal(SIGUSR1, handle);
62 	for (;;)
63 		getpid();
64 }
65