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compat___semctl13.c revision 1.1.2.1 
      1 /*	$NetBSD: compat___semctl13.c,v 1.1.2.1 2008/11/10 00:13:02 christos Exp $	*/
      2 
      3 /*	$NetBSD: compat___semctl13.c,v 1.1.2.1 2008/11/10 00:13:02 christos Exp $ */
      4 
      5 /*-
      6  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      7  * All rights reserved.
      8  *
      9  * This code is derived from software contributed to The NetBSD Foundation
     10  * by Christos Zoulas.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *        This product includes software developed by the NetBSD
     23  *        Foundation, Inc. and its contributors.
     24  * 4. Neither the name of The NetBSD Foundation nor the names of its
     25  *    contributors may be used to endorse or promote products derived
     26  *    from this software without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     38  * POSSIBILITY OF SUCH DAMAGE.
     39  */
     40 #include <sys/cdefs.h>
     41 #if defined(LIBC_SCCS) && !defined(lint)
     42 __RCSID("$NetBSD: compat___semctl13.c,v 1.1.2.1 2008/11/10 00:13:02 christos Exp $");
     43 #endif /* LIBC_SCCS and not lint */
     44 
     45 #include "namespace.h"
     46 #define __LIBC12_SOURCE__
     47 #include <stdarg.h>
     48 #include <sys/time.h>
     49 #include <compat/sys/time.h>
     50 #include <sys/sem.h>
     51 #include <compat/sys/sem.h>
     52 
     53 __warn_references(__semctl13,
     54     "warning: reference to compatibility __semctl13(); include <sys/sem.h> to generate correct reference")
     55 
     56 /*
     57  * Copy timeout to local variable and call the syscall.
     58  */
     59 int
     60 __semctl13(int semid, int semnum, int cmd, ...)
     61 {
     62 	va_list ap;
     63 	union __semun semun;
     64 	struct semid_ds13 *ds13;
     65 	struct semid_ds ds;
     66 	int error;
     67 
     68 	va_start(ap, cmd);
     69 	switch (cmd) {
     70 	case IPC_SET:
     71 	case IPC_STAT:
     72 	case GETALL:
     73 	case SETVAL:
     74 	case SETALL:
     75 #ifdef __lint__
     76 		memcpy(&semun, &ap, sizeof(semun));
     77 #else
     78 		semun = va_arg(ap, union __semun);
     79 #endif
     80 	}
     81 	va_end(ap);
     82 
     83 	ds13 = (struct semid_ds13 *)(void *)semun.buf;
     84 	semun.buf = &ds;
     85 
     86 	if (cmd == IPC_SET)
     87 		__semid_ds13_to_native(ds13, &ds);
     88 
     89 	error = ____semctl50(semid, semnum, cmd, &semun);
     90 	if (error)
     91 		return error;
     92 
     93 	if (cmd == IPC_STAT)
     94 		__native_to_semid_ds13(&ds, ds13);
     95 
     96 	semun.buf = (struct semid_ds *)(void *)ds13;
     97 	return 0;
     98 }
     99