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      1 /*	$NetBSD: compat___semctl13.c,v 1.6 2015/01/29 20:44:38 joerg 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___semctl13.c,v 1.6 2015/01/29 20:44:38 joerg Exp $");
     41 #endif /* LIBC_SCCS and not lint */
     42 
     43 #include "namespace.h"
     44 #define __LIBC12_SOURCE__
     45 #include <stdarg.h>
     46 #include <sys/time.h>
     47 #include <compat/sys/time.h>
     48 #include <sys/sem.h>
     49 #include <compat/sys/sem.h>
     50 #ifdef __lint__
     51 #include <string.h>
     52 #endif
     53 
     54 __warn_references(__semctl13,
     55     "warning: reference to compatibility __semctl13(); include <sys/sem.h> to generate correct reference")
     56 
     57 /*
     58  * Copy timeout to local variable and call the syscall.
     59  */
     60 int
     61 __semctl13(int semid, int semnum, int cmd, ...)
     62 {
     63 	va_list ap;
     64 	union __semun semun;
     65 	struct semid_ds13 *ds13;
     66 	struct semid_ds ds;
     67 	int error;
     68 
     69 	va_start(ap, cmd);
     70 	switch (cmd) {
     71 	case IPC_SET:
     72 	case IPC_STAT:
     73 	case GETALL:
     74 	case SETVAL:
     75 	case SETALL:
     76 #ifdef __lint__
     77 		memcpy(&semun, &ap, sizeof(semun));
     78 #else
     79 		semun = va_arg(ap, union __semun);
     80 #endif
     81 		break;
     82 	default:
     83 		break;
     84 	}
     85 	va_end(ap);
     86 
     87 	switch (cmd) {
     88 	case IPC_SET:
     89 	case IPC_STAT:
     90 		ds13 = (void *)semun.buf;
     91 		semun.buf = &ds;
     92 		if (cmd == IPC_SET)
     93 			__semid_ds13_to_native(ds13, &ds);
     94 		break;
     95 	default:
     96 		ds13 = NULL;
     97 		break;
     98 	}
     99 
    100 
    101 	error = ____semctl50(semid, semnum, cmd, &semun);
    102 	if (error)
    103 		return error;
    104 
    105 	if (cmd == IPC_STAT)
    106 		__native_to_semid_ds13(&ds, ds13);
    107 	return 0;
    108 }
    109