| Vishal Bhoj | 82c8071 | 2015-12-15 21:13:33 +0530 | [diff] [blame^] | 1 | /** @file
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| 2 |
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| 3 | Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
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| 4 | This program and the accompanying materials are licensed and made available under
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| 5 | the terms and conditions of the BSD License that accompanies this distribution.
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| 6 | The full text of the license may be found at
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| 7 | http://opensource.org/licenses/bsd-license.
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| 8 |
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| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 11 |
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| 12 | * Copyright (c) 1989, 1993
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| 13 | * The Regents of the University of California. All rights reserved.
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| 14 | *
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| 15 | * Redistribution and use in source and binary forms, with or without
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| 16 | * modification, are permitted provided that the following conditions
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| 17 | * are met:
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| 18 | * 1. Redistributions of source code must retain the above copyright
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| 19 | * notice, this list of conditions and the following disclaimer.
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| 20 | * 2. Redistributions in binary form must reproduce the above copyright
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| 21 | * notice, this list of conditions and the following disclaimer in the
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| 22 | * documentation and/or other materials provided with the distribution.
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| 23 | * 3. Neither the name of the University nor the names of its contributors
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| 24 | * may be used to endorse or promote products derived from this software
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| 25 | * without specific prior written permission.
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| 26 | *
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| 27 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 37 | * SUCH DAMAGE.
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| 38 | *
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| 39 | * @(#)unistd.h 8.2 (Berkeley) 1/7/94
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| 40 | NetBSD: unistd.h,v 1.35 2006/08/14 18:17:48 rpaulo Exp
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| 41 | **/
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| 42 | #ifndef _SYS_UNISTD_H_
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| 43 | #define _SYS_UNISTD_H_
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| 44 |
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| 45 | #include <sys/featuretest.h>
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| 46 |
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| 47 | /* compile-time symbolic constants */
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| 48 |
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| 49 | /*
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| 50 | * According to POSIX 1003.1:
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| 51 | * "The saved set-user-ID capability allows a program to regain the
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| 52 | * effective user ID established at the last exec call."
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| 53 | * However, the setuid/setgid function as specified by POSIX 1003.1 does
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| 54 | * not allow changing the effective ID from the super-user without also
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| 55 | * changed the saved ID, so it is impossible to get super-user privileges
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| 56 | * back later. Instead we provide this feature independent of the current
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| 57 | * effective ID through the seteuid/setegid function. In addition, we do
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| 58 | * not use the saved ID as specified by POSIX 1003.1 in setuid/setgid,
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| 59 | * because this would make it impossible for a set-user-ID executable
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| 60 | * owned by a user other than the super-user to permanently revoke its
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| 61 | * extra privileges.
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| 62 | */
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| 63 | #ifdef _NOT_AVAILABLE
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| 64 | #define _POSIX_SAVED_IDS /* saved set-user-ID and set-group-ID */
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| 65 | #endif
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| 66 |
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| 67 | #define _POSIX_VERSION 199009L
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| 68 | #define _POSIX2_VERSION 199212L
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| 69 |
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| 70 | /* execution-time symbolic constants */
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| 71 | /* timers */
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| 72 | #define _POSIX_TIMERS 200112L
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| 73 |
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| 74 | /* Always ensure that these are consistent with <fcntl.h>!
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| 75 | whence values for lseek(2).
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| 76 | */
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| 77 | #ifndef SEEK_SET
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| 78 | #define SEEK_SET 0 /**< set file offset to offset */
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| 79 | #endif
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| 80 | #ifndef SEEK_CUR
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| 81 | #define SEEK_CUR 1 /**< set file offset to current plus offset */
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| 82 | #endif
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| 83 | #ifndef SEEK_END
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| 84 | #define SEEK_END 2 /**< set file offset to EOF plus offset */
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| 85 | #endif
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| 86 |
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| 87 | /* whence values for lseek(2); renamed by POSIX 1003.1 */
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| 88 | #define L_SET SEEK_SET
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| 89 | #define L_INCR SEEK_CUR
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| 90 | #define L_XTND SEEK_END
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| 91 |
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| 92 | /* configurable system strings */
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| 93 | #define _CS_PATH 1
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| 94 |
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| 95 | #endif /* !_SYS_UNISTD_H_ */
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