master
1/*
2 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * Copyright (c) 1988 University of Utah.
30 * Copyright (c) 1990, 1993
31 * The Regents of the University of California. All rights reserved.
32 * (c) UNIX System Laboratories, Inc.
33 * All or some portions of this file are derived from material licensed
34 * to the University of California by American Telephone and Telegraph
35 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
36 * the permission of UNIX System Laboratories, Inc.
37 *
38 * This code is derived from software contributed to Berkeley by
39 * the Systems Programming Group of the University of Utah Computer
40 * Science Department.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed by the University of
53 * California, Berkeley and its contributors.
54 * 4. Neither the name of the University nor the names of its contributors
55 * may be used to endorse or promote products derived from this software
56 * without specific prior written permission.
57 *
58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
68 * SUCH DAMAGE.
69 *
70 * @(#)ipc.h 8.4 (Berkeley) 2/19/95
71 */
72
73/*
74 * SVID compatible ipc.h file
75 */
76#ifndef _SYS_IPC_H_
77#define _SYS_IPC_H_
78
79#include <sys/appleapiopts.h>
80#include <sys/cdefs.h>
81
82#include <sys/_types.h>
83
84/*
85 * [XSI] The uid_t, gid_t, mode_t, and key_t types SHALL be defined as
86 * described in <sys/types.h>.
87 */
88#include <sys/_types/_uid_t.h>
89#include <sys/_types/_gid_t.h>
90#include <sys/_types/_mode_t.h>
91#include <sys/_types/_key_t.h>
92
93
94#pragma pack(4)
95
96/*
97 * Technically, we should force all code references to the new structure
98 * definition, not in just the standards conformance case, and leave the
99 * legacy interface there for binary compatibility only. Currently, we
100 * are only forcing this for programs requesting standards conformance.
101 */
102#if __DARWIN_UNIX03 || defined(KERNEL)
103/*
104 * [XSI] Information used in determining permission to perform an IPC
105 * operation
106 */
107struct ipc_perm {
108 uid_t uid; /* [XSI] Owner's user ID */
109 gid_t gid; /* [XSI] Owner's group ID */
110 uid_t cuid; /* [XSI] Creator's user ID */
111 gid_t cgid; /* [XSI] Creator's group ID */
112 mode_t mode; /* [XSI] Read/write permission */
113 unsigned short _seq; /* Reserved for internal use */
114 key_t _key; /* Reserved for internal use */
115};
116#define __ipc_perm_new ipc_perm
117#else /* !__DARWIN_UNIX03 */
118#define ipc_perm __ipc_perm_old
119#endif /* !__DARWIN_UNIX03 */
120
121#if !__DARWIN_UNIX03
122/*
123 * Legacy structure; this structure is maintained for binary backward
124 * compatability with previous versions of the interface. New code
125 * should not use this interface, since ID values may be truncated.
126 */
127struct __ipc_perm_old {
128 __uint16_t cuid; /* Creator's user ID */
129 __uint16_t cgid; /* Creator's group ID */
130 __uint16_t uid; /* Owner's user ID */
131 __uint16_t gid; /* Owner's group ID */
132 mode_t mode; /* Read/Write permission */
133 __uint16_t seq; /* Reserved for internal use */
134 key_t key; /* Reserved for internal use */
135};
136#endif /* !__DARWIN_UNIX03 */
137
138#pragma pack()
139
140/*
141 * [XSI] Definitions shall be provided for the following constants:
142 */
143
144/* Mode bits */
145#define IPC_CREAT 001000 /* Create entry if key does not exist */
146#define IPC_EXCL 002000 /* Fail if key exists */
147#define IPC_NOWAIT 004000 /* Error if request must wait */
148
149/* Keys */
150#define IPC_PRIVATE ((key_t)0) /* Private key */
151
152/* Control commands */
153#define IPC_RMID 0 /* Remove identifier */
154#define IPC_SET 1 /* Set options */
155#define IPC_STAT 2 /* Get options */
156
157
158#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
159
160/* common mode bits */
161#define IPC_R 000400 /* Read permission */
162#define IPC_W 000200 /* Write/alter permission */
163#define IPC_M 010000 /* Modify control info permission */
164
165#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
166
167
168
169
170__BEGIN_DECLS
171/* [XSI] */
172key_t ftok(const char *, int);
173__END_DECLS
174
175
176#endif /* !_SYS_IPC_H_ */