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
56int
57kevent(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
69int
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
98leave1:
99	free(eventlist);
100leave0:
101	free(changelist);
102	return retval;
103}
104