xref: /freebsd/lib/libc/gen/semctl.c (revision b648d4806b3ec5be814332e96d565cb0be71d50d)
13ab539dcSDavid Malone /*-
23ab539dcSDavid Malone  * Copyright (c) 2002 Doug Rabson
33ab539dcSDavid Malone  * All rights reserved.
43ab539dcSDavid Malone  *
53ab539dcSDavid Malone  * Redistribution and use in source and binary forms, with or without
63ab539dcSDavid Malone  * modification, are permitted provided that the following conditions
73ab539dcSDavid Malone  * are met:
83ab539dcSDavid Malone  * 1. Redistributions of source code must retain the above copyright
93ab539dcSDavid Malone  *    notice, this list of conditions and the following disclaimer.
103ab539dcSDavid Malone  * 2. Redistributions in binary form must reproduce the above copyright
113ab539dcSDavid Malone  *    notice, this list of conditions and the following disclaimer in the
123ab539dcSDavid Malone  *    documentation and/or other materials provided with the distribution.
133ab539dcSDavid Malone  *
143ab539dcSDavid Malone  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
153ab539dcSDavid Malone  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
163ab539dcSDavid Malone  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
173ab539dcSDavid Malone  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
183ab539dcSDavid Malone  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
193ab539dcSDavid Malone  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
203ab539dcSDavid Malone  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
213ab539dcSDavid Malone  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
223ab539dcSDavid Malone  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
233ab539dcSDavid Malone  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
243ab539dcSDavid Malone  * SUCH DAMAGE.
253ab539dcSDavid Malone  *
263ab539dcSDavid Malone  */
273ab539dcSDavid Malone 
283ab539dcSDavid Malone 
29333fc21eSDavid E. O'Brien #include <sys/cdefs.h>
30333fc21eSDavid E. O'Brien __FBSDID("$FreeBSD$");
31333fc21eSDavid E. O'Brien 
32b648d480SJohn Baldwin #define _WANT_SEMUN_OLD
33b648d480SJohn Baldwin 
345b65bca2SDoug Rabson #include <sys/types.h>
355b65bca2SDoug Rabson #include <sys/ipc.h>
365b65bca2SDoug Rabson #include <sys/sem.h>
373f58cad6SSteve Price #include <stdarg.h>
383f58cad6SSteve Price #include <stdlib.h>
395b65bca2SDoug Rabson 
40b648d480SJohn Baldwin int	__semctl(int semid, int semnum, int cmd, union semun *arg);
41b648d480SJohn Baldwin int	freebsd7___semctl(int semid, int semnum, int cmd, union semun_old *arg);
42e0554a53SJacques Vidrine 
43b648d480SJohn Baldwin int
44b648d480SJohn Baldwin semctl(int semid, int semnum, int cmd, ...)
455b65bca2SDoug Rabson {
463f58cad6SSteve Price 	va_list ap;
473f58cad6SSteve Price 	union semun semun;
483f58cad6SSteve Price 	union semun *semun_ptr;
49a82bbc73SAlfred Perlstein 
503f58cad6SSteve Price 	va_start(ap, cmd);
513f58cad6SSteve Price 	if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
523f58cad6SSteve Price 	    || cmd == SETVAL || cmd == SETALL) {
533f58cad6SSteve Price 		semun = va_arg(ap, union semun);
543f58cad6SSteve Price 		semun_ptr = &semun;
553f58cad6SSteve Price 	} else {
563f58cad6SSteve Price 		semun_ptr = NULL;
573f58cad6SSteve Price 	}
583f58cad6SSteve Price 	va_end(ap);
593f58cad6SSteve Price 
603f58cad6SSteve Price 	return (__semctl(semid, semnum, cmd, semun_ptr));
615b65bca2SDoug Rabson }
62b648d480SJohn Baldwin 
63b648d480SJohn Baldwin int
64b648d480SJohn Baldwin freebsd7_semctl(int semid, int semnum, int cmd, ...)
65b648d480SJohn Baldwin {
66b648d480SJohn Baldwin 	va_list ap;
67b648d480SJohn Baldwin 	union semun_old semun;
68b648d480SJohn Baldwin 	union semun_old *semun_ptr;
69b648d480SJohn Baldwin 
70b648d480SJohn Baldwin 	va_start(ap, cmd);
71b648d480SJohn Baldwin 	if (cmd == IPC_SET || cmd == IPC_STAT || cmd == GETALL
72b648d480SJohn Baldwin 	    || cmd == SETVAL || cmd == SETALL) {
73b648d480SJohn Baldwin 		semun = va_arg(ap, union semun_old);
74b648d480SJohn Baldwin 		semun_ptr = &semun;
75b648d480SJohn Baldwin 	} else {
76b648d480SJohn Baldwin 		semun_ptr = NULL;
77b648d480SJohn Baldwin 	}
78b648d480SJohn Baldwin 	va_end(ap);
79b648d480SJohn Baldwin 
80b648d480SJohn Baldwin 	return (freebsd7___semctl(semid, semnum, cmd, semun_ptr));
81b648d480SJohn Baldwin }
82b648d480SJohn Baldwin 
83b648d480SJohn Baldwin __sym_compat(semctl, freebsd7_semctl, FBSD_1.0);
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