1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1993 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <syscall.h> 33 #include <stdarg.h> 34 #include <sys/types.h> 35 #include <sys/ipc.h> 36 #include <sys/msg.h> 37 38 39 /* msgsys dispatch argument */ 40 #define MSGGET 0 41 #define MSGCTL 1 42 #define MSGRCV 2 43 #define MSGSND 3 44 45 int 46 msgget(key_t key, int msgflg) 47 { 48 return (_syscall(SYS_msgsys, MSGGET, key, msgflg)); 49 } 50 51 int 52 msgctl(int msqid, int cmd, struct msqid_ds *buf) 53 { 54 return (_syscall(SYS_msgsys, MSGCTL, msqid, cmd, buf)); 55 } 56 57 int 58 msgrcv(int msqid, struct msgbuf *msgp, int msgsz, long msgtyp, int msgflg) 59 { 60 return (_syscall(SYS_msgsys, MSGRCV, msqid, msgp, msgsz, msgtyp, msgflg)); 61 } 62 63 int 64 msgsnd(int msqid, struct msgbuf *msgp, int msgsz, int msgflg) 65 { 66 return (_syscall(SYS_msgsys, MSGSND, msqid, msgp, msgsz, msgflg)); 67 } 68 69 int 70 msgsys(int sysnum, ...) 71 { 72 va_list ap; 73 key_t key; 74 int msgflg; 75 int msgflag; 76 int msqid, cmd; 77 struct msqid_ds *buf; 78 struct msgbuf *msgp; 79 int msgsz; 80 long msgtyp; 81 82 83 va_start(ap, sysnum); 84 switch (sysnum) { 85 case MSGGET: 86 key=va_arg(ap, key_t); 87 msgflag=va_arg(ap, int); 88 va_end(ap); 89 return (msgget(key, msgflag)); 90 case MSGCTL: 91 msqid=va_arg(ap, int); 92 cmd=va_arg(ap, int); 93 buf=va_arg(ap, struct msqid_ds *); 94 va_end(ap); 95 return (msgctl(msqid, cmd, buf)); 96 case MSGRCV: 97 msqid=va_arg(ap, int); 98 msgp=va_arg(ap, struct msgbuf *); 99 msgsz=va_arg(ap, int); 100 msgtyp=va_arg(ap, long); 101 msgflg=va_arg(ap, int); 102 va_end(ap); 103 return (msgrcv(msqid, msgp, msgsz, msgtyp, msgflg)); 104 case MSGSND: 105 msqid=va_arg(ap, int); 106 msgp=va_arg(ap, struct msgbuf *); 107 msgsz=va_arg(ap, int); 108 msgflg=va_arg(ap, int); 109 va_end(ap); 110 return (msgsnd(msqid, msgp, msgsz, msgflg)); 111 } 112 va_end(ap); 113 return (-1); 114 } 115