1 /* $NetBSD: compat_getrusage.c,v 1.4 2013/10/04 21:07:37 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_getrusage.c,v 1.4 2013/10/04 21:07:37 christos Exp $");
35 #endif /* LIBC_SCCS and not lint */
36
37 #define __LIBC12_SOURCE__
38
39 #include "namespace.h"
40 #include <string.h>
41 #include <sys/types.h>
42 #include <sys/resource.h>
43 #include <compat/sys/resource.h>
44
45 __warn_references(getrusage,
46 "warning: reference to compatibility getrusage(); include <sys/resource.h> to generate correct reference")
47
48 __strong_alias(getrusage, __compat_getrusage)
49
50 void __rusage_to_rusage50(const struct rusage *, struct rusage50 *);
51
52 void
__rusage_to_rusage50(const struct rusage * ru,struct rusage50 * ru50)53 __rusage_to_rusage50(const struct rusage *ru, struct rusage50 *ru50)
54 {
55 (void)memcpy(&ru50->ru_first, &ru->ru_first,
56 (size_t)((char *)(void *)&ru50->ru_last -
57 (char *)(void *)&ru50->ru_first));
58 ru50->ru_maxrss = ru->ru_maxrss;
59 timeval_to_timeval50(&ru->ru_utime, &ru50->ru_utime);
60 timeval_to_timeval50(&ru->ru_stime, &ru50->ru_stime);
61 }
62
63 /*
64 * libc12 compatible getrusage routine.
65 */
66 int
__compat_getrusage(int who,struct rusage50 * ru50)67 __compat_getrusage(int who, struct rusage50 *ru50)
68 {
69 struct rusage ru;
70 int rv;
71
72 if ((rv = __getrusage50(who, &ru)) == -1)
73 return rv;
74 __rusage_to_rusage50(&ru, ru50);
75 return rv;
76 }
77