| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 |
- /* Copyright (C) 1995, 1996, 1997, 1998 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
- #ifndef _SYS_IPC_H
- # error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
- #endif
- #include <sys/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. */
- #define IPC_INFO 3 /* See ipcs. */
- /* Special key values. */
- #define IPC_PRIVATE ((__key_t) 0) /* Private key. */
- /* Data structure used to pass permission information to IPC operations. */
- struct ipc_perm
- {
- __key_t __key; /* Key. */
- unsigned short int uid; /* Owner's user ID. */
- unsigned short int gid; /* Owner's group ID. */
- unsigned short int cuid; /* Creator's user ID. */
- unsigned short int cgid; /* Creator's group ID. */
- unsigned short int mode; /* Read/write permission. */
- unsigned short int __seq; /* Sequence number. */
- };
|
