blob: 0e40b58ce7a75c584e522f87194056708d9b993a (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* Copyright (C) 1995-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _SYS_IPC_H
# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
#endif
#include <bits/types.h>
/* Mode bits for `msgget', `semget', and `shmget'. */
#define IPC_CREAT 01000 /* create key if key does not exist */
#define IPC_EXCL 02000 /* fail if key exists */
#define IPC_NOWAIT 04000 /* return error on wait */
/* Control commands for `msgctl', `semctl', and `shmctl'. */
#define IPC_RMID 0 /* remove identifier */
#define IPC_SET 1 /* set `ipc_perm' options */
#define IPC_STAT 2 /* get `ipc_perm' options */
/* Special key values. */
#define IPC_PRIVATE ((key_t) 0) /* private key */
/* Data structure used to pass permission information to IPC operations. */
struct ipc_perm
{
__uid_t uid; /* owner's user ID */
__gid_t gid; /* owner's group ID */
__uid_t cuid; /* creator's user ID */
__gid_t cgid; /* creator's group ID */
__mode_t mode; /* read/write permission */
};
|
