10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
50Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
70Sstevel@tonic-gate  * with the License.
80Sstevel@tonic-gate  *
90Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate  * See the License for the specific language governing permissions
120Sstevel@tonic-gate  * and limitations under the License.
130Sstevel@tonic-gate  *
140Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate  *
200Sstevel@tonic-gate  * CDDL HEADER END
210Sstevel@tonic-gate  */
220Sstevel@tonic-gate /*
230Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate /*      Copyright (c) 1984 AT&T */
280Sstevel@tonic-gate /*        All Rights Reserved   */
290Sstevel@tonic-gate 
30*722Smuffin #pragma ident	"%Z%%M%	%I%	%E% SMI"
310Sstevel@tonic-gate 
320Sstevel@tonic-gate #include	<syscall.h>
33*722Smuffin #include	<stdarg.h>
340Sstevel@tonic-gate #include	<sys/types.h>
350Sstevel@tonic-gate #include	<sys/ipc.h>
360Sstevel@tonic-gate #include	<sys/sem.h>
370Sstevel@tonic-gate 
380Sstevel@tonic-gate /* semsys dispatch argument */
390Sstevel@tonic-gate #define SEMCTL  0
400Sstevel@tonic-gate #define SEMGET  1
410Sstevel@tonic-gate #define SEMOP   2
420Sstevel@tonic-gate 
43*722Smuffin int
44*722Smuffin semctl(int semid, int semnum, int cmd, union semun *arg)
450Sstevel@tonic-gate {
460Sstevel@tonic-gate 	switch (cmd) {
470Sstevel@tonic-gate 
480Sstevel@tonic-gate 	case IPC_STAT:
490Sstevel@tonic-gate 	case IPC_SET:
500Sstevel@tonic-gate 		cmd += 10;
510Sstevel@tonic-gate 		/* fall-through */
520Sstevel@tonic-gate 	case SETVAL:
530Sstevel@tonic-gate 	case GETALL:
540Sstevel@tonic-gate 	case SETALL:
55*722Smuffin 		return (_syscall(SYS_semsys,SEMCTL,semid,semnum,cmd,arg->val));
560Sstevel@tonic-gate 
570Sstevel@tonic-gate 	case IPC_RMID:
580Sstevel@tonic-gate 		cmd += 10;
590Sstevel@tonic-gate 		/* fall-through */
600Sstevel@tonic-gate 	default:
61*722Smuffin 		return (_syscall(SYS_semsys,SEMCTL,semid,semnum,cmd,0));
620Sstevel@tonic-gate 	}
630Sstevel@tonic-gate }
640Sstevel@tonic-gate 
65*722Smuffin int
66*722Smuffin semget(key_t key, int nsems, int semflg)
670Sstevel@tonic-gate {
68*722Smuffin 	return (_syscall(SYS_semsys, SEMGET, key, nsems, semflg));
690Sstevel@tonic-gate }
700Sstevel@tonic-gate 
71*722Smuffin int
72*722Smuffin semop(int semid, struct sembuf *sops, int nsops)
730Sstevel@tonic-gate {
74*722Smuffin 	return (_syscall(SYS_semsys, SEMOP, semid, sops, nsops));
750Sstevel@tonic-gate }
760Sstevel@tonic-gate 
77*722Smuffin int
78*722Smuffin semsys(int sysnum, ...)
790Sstevel@tonic-gate {
800Sstevel@tonic-gate 	va_list ap;
810Sstevel@tonic-gate 	int semid, cmd;
820Sstevel@tonic-gate 	int semnum, val;
830Sstevel@tonic-gate 	union semun arg;
840Sstevel@tonic-gate 	key_t key;
850Sstevel@tonic-gate 	int nsems, semflg;
860Sstevel@tonic-gate 	struct sembuf *sops;
870Sstevel@tonic-gate 	int nsops;
880Sstevel@tonic-gate 
89*722Smuffin 	va_start(ap, sysnum);
900Sstevel@tonic-gate 	switch (sysnum) {
910Sstevel@tonic-gate 	case SEMCTL:
920Sstevel@tonic-gate 		semid=va_arg(ap, int);
930Sstevel@tonic-gate 		semnum=va_arg(ap, int);
940Sstevel@tonic-gate 		cmd=va_arg(ap, int);
950Sstevel@tonic-gate 		val=va_arg(ap, int);
960Sstevel@tonic-gate 		if ((cmd == IPC_STAT) || (cmd == IPC_SET) || (cmd == IPC_RMID))
970Sstevel@tonic-gate 			cmd += 10;
98*722Smuffin 		va_end(ap);
99*722Smuffin 		return (_syscall(SYS_semsys, SEMCTL, semid, semnum, cmd, val));
1000Sstevel@tonic-gate 	case SEMGET:
1010Sstevel@tonic-gate 		key=va_arg(ap, key_t);
1020Sstevel@tonic-gate 		nsems=va_arg(ap, int);
1030Sstevel@tonic-gate 		semflg=va_arg(ap, int);
104*722Smuffin 		va_end(ap);
105*722Smuffin 		return (semget(key, nsems, semflg));
1060Sstevel@tonic-gate 	case SEMOP:
1070Sstevel@tonic-gate 		semid=va_arg(ap, int);
1080Sstevel@tonic-gate 		sops=va_arg(ap, struct sembuf *);
1090Sstevel@tonic-gate 		nsops=va_arg(ap, int);
110*722Smuffin 		va_end(ap);
111*722Smuffin 		return (semop(semid, sops, nsops));
1120Sstevel@tonic-gate 	}
113*722Smuffin 	va_end(ap);
114*722Smuffin 	return (-1);
1150Sstevel@tonic-gate }
116