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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*
- * Copyright (c) 1988 University of Utah.
- * Copyright (c) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- * (c) UNIX System Laboratories, Inc.
- * All or some portions of this file are derived from material licensed
- * to the University of California by American Telephone and Telegraph
- * Co. or Unix System Laboratories, Inc. and are reproduced herein with
- * the permission of UNIX System Laboratories, Inc.
- *
- * This code is derived from software contributed to Berkeley by
- * the Systems Programming Group of the University of Utah Computer
- * Science Department.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)ipc.h 8.4 (Berkeley) 2/19/95
- */
-
- /*
- * SVID compatible ipc.h file
- */
- #ifndef _SYS_IPC_H_
- #define _SYS_IPC_H_
-
- struct ipc_perm {
- ushort cuid; /* creator user id */
- ushort cgid; /* creator group id */
- ushort uid; /* user id */
- ushort gid; /* group id */
- ushort mode; /* r/w permission */
- ushort seq; /* sequence # (to generate unique msg/sem/shm id) */
- key_t key; /* user specified msg/sem/shm key */
- };
-
- /* common mode bits */
- #define IPC_R 000400 /* read permission */
- #define IPC_W 000200 /* write/alter permission */
- #define IPC_M 010000 /* permission to change control info */
-
- /* SVID required constants (same values as system 5) */
- #define IPC_CREAT 001000 /* create entry if key does not exist */
- #define IPC_EXCL 002000 /* fail if key exists */
- #define IPC_NOWAIT 004000 /* error if request must wait */
-
- #define IPC_PRIVATE (key_t)0 /* private key */
-
- #define IPC_RMID 0 /* remove identifier */
- #define IPC_SET 1 /* set options */
- #define IPC_STAT 2 /* get options */
-
- #ifdef KERNEL
- /* Macros to convert between ipc ids and array indices or sequence ids */
- #define IPCID_TO_IX(id) ((id) & 0xffff)
- #define IPCID_TO_SEQ(id) (((id) >> 16) & 0xffff)
- #define IXSEQ_TO_IPCID(ix,perm) (((perm.seq) << 16) | (ix & 0xffff))
-
- struct ucred;
-
- int ipcperm __P((struct ucred *, struct ipc_perm *, int));
- #else /* ! KERNEL */
-
- /* XXX doesn't really belong here, but has been historical practice in SysV. */
-
- #include <sys/cdefs.h>
-
- __BEGIN_DECLS
- key_t ftok __P((const char *, int));
- __END_DECLS
-
- #endif /* KERNEL */
-
- #endif /* !_SYS_IPC_H_ */
-