compat_wait4.c revision 1.4 
1/*	$NetBSD: compat_wait4.c,v 1.4 2024/01/20 14:52:46 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#if defined(LIBC_SCCS) && !defined(lint)
34__RCSID("$NetBSD: compat_wait4.c,v 1.4 2024/01/20 14:52:46 christos Exp $");
35#endif /* LIBC_SCCS and not lint */
36
37#define __LIBC12_SOURCE__
38
39#include "namespace.h"
40#include <sys/types.h>
41#include <sys/wait.h>
42#include <sys/resource.h>
43#include <compat/sys/wait.h>
44#include <compat/sys/resource.h>
45
46__warn_references(wait3,
47    "warning: reference to compatibility wait3(); include <sys/wait.h> to generate correct reference")
48__warn_references(wait4,
49    "warning: reference to compatibility wait4(); include <sys/wait.h> to generate correct reference")
50
51#ifdef __weak_alias
52__weak_alias(wait4, _wait4)
53__weak_alias(_sys_wait4, _wait4)
54__weak_alias(wait3, _wait3)
55#endif
56
57/*
58 * libc12 compatible wait4 routine.
59 */
60pid_t
61wait3(int *status, int options, struct rusage50 *ru50)
62{
63	struct rusage ru;
64	pid_t rv;
65
66	if ((rv = __wait350(status, options, ru50 ? &ru : NULL)) == -1)
67		return rv;
68	if (ru50)
69		rusage_to_rusage50(&ru, ru50);
70	return rv;
71}
72
73pid_t
74wait4(pid_t wpid, int *status, int options, struct rusage50 *ru50)
75{
76	struct rusage ru;
77	pid_t rv;
78
79	if ((rv = __wait450(wpid, status, options, ru50 ? &ru : NULL)) == -1)
80		return rv;
81	if (ru50)
82		rusage_to_rusage50(&ru, ru50);
83	return rv;
84}
85