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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
101 lines
3.8 KiB
C
101 lines
3.8 KiB
C
/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ipc.h 8.4 (Berkeley) 2/19/95
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* $FreeBSD$
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*/
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/*
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* SVID compatible ipc.h file
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*/
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#ifndef _SYS_IPC_H_
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#define _SYS_IPC_H_
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struct ipc_perm {
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ushort cuid; /* creator user id */
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ushort cgid; /* creator group id */
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ushort uid; /* user id */
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ushort gid; /* group id */
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ushort mode; /* r/w permission */
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ushort seq; /* sequence # (to generate unique msg/sem/shm id) */
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key_t key; /* user specified msg/sem/shm key */
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};
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/* common mode bits */
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#define IPC_R 000400 /* read permission */
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#define IPC_W 000200 /* write/alter permission */
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#define IPC_M 010000 /* permission to change control info */
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/* SVID required constants (same values as system 5) */
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#define IPC_CREAT 001000 /* create entry if key does not exist */
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#define IPC_EXCL 002000 /* fail if key exists */
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#define IPC_NOWAIT 004000 /* error if request must wait */
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#define IPC_PRIVATE (key_t)0 /* private key */
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#define IPC_RMID 0 /* remove identifier */
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#define IPC_SET 1 /* set options */
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#define IPC_STAT 2 /* get options */
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#ifdef _KERNEL
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/* Macros to convert between ipc ids and array indices or sequence ids */
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#define IPCID_TO_IX(id) ((id) & 0xffff)
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#define IPCID_TO_SEQ(id) (((id) >> 16) & 0xffff)
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#define IXSEQ_TO_IPCID(ix,perm) (((perm.seq) << 16) | (ix & 0xffff))
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struct proc;
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int ipcperm __P((struct proc *, struct ipc_perm *, int));
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#else /* ! _KERNEL */
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/* XXX doesn't really belong here, but has been historical practice in SysV. */
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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key_t ftok __P((const char *, int));
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* !_SYS_IPC_H_ */
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