1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2002 Doug Rabson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 */
29
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD$");
33
34#ifndef NO_COMPAT7
35#define _WANT_SEMUN_OLD
36#endif
37#define _WANT_SEMUN
38
39#include <sys/types.h>
40#include <sys/ipc.h>
41#include <sys/sem.h>
42#include <stdarg.h>
43#include <stdlib.h>
44
45int	__semctl(int semid, int semnum, int cmd, union semun *arg);
46#ifndef NO_COMPAT7
47int	freebsd7___semctl(int semid, int semnum, int cmd, union semun_old *arg);
48int	freebsd7_semctl(int semid, int semnum, int cmd, ...);
49#endif
50
51int
52semctl(int semid, int semnum, int cmd, ...)
53{
54	va_list ap;
55	union semun semun;
56	union semun *semun_ptr;
57
58	va_start(ap, cmd);
59	if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
60	    || cmd == SETVAL || cmd == SETALL) {
61		semun = va_arg(ap, union semun);
62		semun_ptr = &semun;
63	} else {
64		semun_ptr = NULL;
65	}
66	va_end(ap);
67
68	return (__semctl(semid, semnum, cmd, semun_ptr));
69}
70
71#ifndef NO_COMPAT7
72int
73freebsd7_semctl(int semid, int semnum, int cmd, ...)
74{
75	va_list ap;
76	union semun_old semun;
77	union semun_old *semun_ptr;
78
79	va_start(ap, cmd);
80	if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
81	    || cmd == SETVAL || cmd == SETALL) {
82		semun = va_arg(ap, union semun_old);
83		semun_ptr = &semun;
84	} else {
85		semun_ptr = NULL;
86	}
87	va_end(ap);
88
89	return (freebsd7___semctl(semid, semnum, cmd, semun_ptr));
90}
91
92__sym_compat(semctl, freebsd7_semctl, FBSD_1.0);
93#endif
94