1 /* $NetBSD: waitid.c,v 1.4 2016/04/06 04:09:10 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2016 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 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: waitid.c,v 1.4 2016/04/06 04:09:10 christos Exp $");
33
34 #include "namespace.h"
35 #include <sys/types.h>
36 #include <sys/time.h>
37 #include <sys/wait.h>
38 #include <sys/resource.h>
39
40 #include <string.h>
41 #include <signal.h>
42
43 #ifdef __weak_alias
__weak_alias(waitid,_waitid)44 __weak_alias(waitid,_waitid)
45 #endif
46
47 int
48 waitid(idtype_t idtype, id_t id, siginfo_t *info, int flags)
49 {
50 int status;
51
52 switch (wait6(idtype, id, &status, flags, NULL, info)) {
53 case -1:
54 return -1;
55 case 0:
56 if (info != NULL)
57 memset(info, 0, sizeof(*info));
58 /*FALLTHROUGH*/
59 default:
60 return 0;
61 }
62 }
63