1/* $NetBSD: compat_wait4.c,v 1.3 2015/03/26 11:17:08 justin 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 1.3 2015/03/26 11:17:08 justin 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 <compat/sys/wait.h>
43#include <sys/resource.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
51extern void __rusage_to_rusage50(const struct rusage *, struct rusage50 *);
52
53#ifdef __weak_alias
54__weak_alias(wait4, _wait4)
55__weak_alias(_sys_wait4, _wait4)
56__weak_alias(wait3, _wait3)
57#endif
58
59/*
60 * libc12 compatible wait4 routine.
61 */
62pid_t
63wait3(int *status, int options, struct rusage50 *ru50)
64{
65 struct rusage ru;
66 pid_t rv;
67
68 if ((rv = __wait350(status, options, ru50 ? &ru : NULL)) == -1)
69 return rv;
70 if (ru50)
71 __rusage_to_rusage50(&ru, ru50);
72 return rv;
73}
74
75pid_t
76wait4(pid_t wpid, int *status, int options, struct rusage50 *ru50)
77{
78 struct rusage ru;
79 pid_t rv;
80
81 if ((rv = __wait450(wpid, status, options, ru50 ? &ru : NULL)) == -1)
82 return rv;
83 if (ru50)
84 __rusage_to_rusage50(&ru, ru50);
85 return rv;
86}
87