xref: /titanic_50/usr/src/lib/libbc/libc/gen/common/on_exit.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 #pragma ident	"%Z%%M%	%I%	%E% SMI"
23 
24 #include <sys/types.h>
25 
26 /*
27  * Copyright (c) 1987 by Sun Microsystems, Inc.
28  */
29 
30 char	*malloc();
31 
32 struct handlers {
33 	void	(*handler)();
34 	caddr_t	arg;
35 	struct	handlers *next;
36 };
37 
38 extern	struct handlers *_exit_handlers;
39 
40 int
41 on_exit(handler, arg)
42 	void (*handler)();
43 	caddr_t arg;
44 {
45 	register struct handlers *h =
46 	    (struct handlers *)malloc(sizeof (*h));
47 
48 	if (h == 0)
49 		return (-1);
50 	h->handler = handler;
51 	h->arg = arg;
52 	h->next = _exit_handlers;
53 	_exit_handlers = h;
54 	return (0);
55 }
56