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1/* Copyright (C) 1995-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#ifndef _SYS_IPC_H
19# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
20#endif
21
22#include <bits/types.h>
23
24/* Mode bits for `msgget', `semget', and `shmget'. */
25#define IPC_CREAT 01000 /* create key if key does not exist */
26#define IPC_EXCL 02000 /* fail if key exists */
27#define IPC_NOWAIT 04000 /* return error on wait */
28
29/* Control commands for `msgctl', `semctl', and `shmctl'. */
30#define IPC_RMID 0 /* remove identifier */
31#define IPC_SET 1 /* set `ipc_perm' options */
32#define IPC_STAT 2 /* get `ipc_perm' options */
33
34/* Special key values. */
35#define IPC_PRIVATE ((key_t) 0) /* private key */
36
37
38/* Data structure used to pass permission information to IPC operations. */
39struct ipc_perm
40 {
41 __uid_t uid; /* owner's user ID */
42 __gid_t gid; /* owner's group ID */
43 __uid_t cuid; /* creator's user ID */
44 __gid_t cgid; /* creator's group ID */
45 __mode_t mode; /* read/write permission */
46 };
47

Warning: That file was not part of the compilation database. It may have many parsing errors.