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
__weak_alias(wait4,_wait4)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 */
60 pid_t
61 wait3(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
73 pid_t
wait4(pid_t wpid,int * status,int options,struct rusage50 * ru50)74 wait4(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