1 /* $NetBSD: compat_kevent.c,v 1.4 2023/07/29 10:01:24 rin 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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38 #include <sys/cdefs.h>
39 #if defined(LIBC_SCCS) && !defined(lint)
40 __RCSID("$NetBSD: compat_kevent.c,v 1.4 2023/07/29 10:01:24 rin Exp $");
41 #endif /* LIBC_SCCS and not lint */
42
43 #include "namespace.h"
44 #define __LIBC12_SOURCE__
45 #include <sys/time.h>
46 #include <compat/sys/time.h>
47 #include <sys/event.h>
48 #include <compat/sys/event.h>
49 #include <stdlib.h>
50
51 __warn_references(kevent,
52 "warning: reference to compatibility kevent(); include <sys/event.h> to generate correct reference")
53 __warn_references(__kevent50,
54 "warning: reference to compatibility __kevent50(); use kevent()")
55
56 int
kevent(int kq,const struct kevent100 * changelist,size_t nchanges,struct kevent100 * eventlist,size_t nevents,const struct timespec50 * ts50)57 kevent(int kq, const struct kevent100 *changelist, size_t nchanges,
58 struct kevent100 *eventlist, size_t nevents, const struct timespec50 *ts50)
59 {
60 struct timespec ts, *tsp;
61
62 if (ts50)
63 timespec50_to_timespec(ts50, tsp = &ts);
64 else
65 tsp = NULL;
66 return __kevent50(kq, changelist, nchanges, eventlist, nevents, tsp);
67 }
68
69 int
__kevent50(int kq,const struct kevent100 * changelist100,size_t nchanges,struct kevent100 * eventlist100,size_t nevents,const struct timespec * tsp)70 __kevent50(int kq, const struct kevent100 *changelist100, size_t nchanges,
71 struct kevent100 *eventlist100, size_t nevents, const struct timespec *tsp)
72 {
73 int retval;
74 struct kevent *changelist;
75 struct kevent *eventlist;
76
77 changelist = malloc(sizeof(*changelist) * nchanges);
78 if (changelist == NULL) {
79 return -1;
80 }
81
82 eventlist = malloc(sizeof(*eventlist) * nevents);
83 if (eventlist == NULL) {
84 retval = -1;
85 goto leave0;
86 }
87
88 for (size_t i = 0; i < nchanges; i++)
89 kevent100_to_kevent(changelist100 + i, changelist + i);
90
91 retval = __kevent100(kq, changelist, nchanges, eventlist, nevents, tsp);
92 if (retval == -1)
93 goto leave1;
94
95 for (int i = 0; i < retval; i++)
96 kevent_to_kevent100(eventlist + i, eventlist100 + i);
97
98 leave1:
99 free(eventlist);
100 leave0:
101 free(changelist);
102 return retval;
103 }
104