The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/bsd/sys/unistd.h

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    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
    7  * 
    8  * This file contains Original Code and/or Modifications of Original Code
    9  * as defined in and that are subject to the Apple Public Source License
   10  * Version 2.0 (the 'License'). You may not use this file except in
   11  * compliance with the License. Please obtain a copy of the License at
   12  * http://www.opensource.apple.com/apsl/ and read it before using this
   13  * file.
   14  * 
   15  * The Original Code and all software distributed under the License are
   16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   20  * Please see the License for the specific language governing rights and
   21  * limitations under the License.
   22  * 
   23  * @APPLE_LICENSE_HEADER_END@
   24  */
   25 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
   26 /*
   27  * Copyright (c) 1989, 1993
   28  *      The Regents of the University of California.  All rights reserved.
   29  *
   30  * Redistribution and use in source and binary forms, with or without
   31  * modification, are permitted provided that the following conditions
   32  * are met:
   33  * 1. Redistributions of source code must retain the above copyright
   34  *    notice, this list of conditions and the following disclaimer.
   35  * 2. Redistributions in binary form must reproduce the above copyright
   36  *    notice, this list of conditions and the following disclaimer in the
   37  *    documentation and/or other materials provided with the distribution.
   38  * 3. All advertising materials mentioning features or use of this software
   39  *    must display the following acknowledgement:
   40  *      This product includes software developed by the University of
   41  *      California, Berkeley and its contributors.
   42  * 4. Neither the name of the University nor the names of its contributors
   43  *    may be used to endorse or promote products derived from this software
   44  *    without specific prior written permission.
   45  *
   46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   56  * SUCH DAMAGE.
   57  *
   58  *      @(#)unistd.h    8.2 (Berkeley) 1/7/94
   59  */
   60 
   61 #ifndef _SYS_UNISTD_H_
   62 #define _SYS_UNISTD_H_
   63 
   64 /* compile-time symbolic constants */
   65 #define _POSIX_JOB_CONTROL      /* implementation supports job control */
   66 
   67 /*
   68  * Although we have saved user/group IDs, we do not use them in setuid
   69  * as described in POSIX 1003.1, because the feature does not work for
   70  * root.  We use the saved IDs in seteuid/setegid, which are not currently
   71  * part of the POSIX 1003.1 specification.
   72  */
   73 #ifdef  _NOT_AVAILABLE
   74 #define _POSIX_SAVED_IDS        /* saved set-user-ID and set-group-ID */
   75 #endif
   76 
   77 #define _POSIX_VERSION          198808L
   78 #define _POSIX2_VERSION         199212L
   79 
   80 /* execution-time symbolic constants */
   81                                 /* chown requires appropriate privileges */
   82 #define _POSIX_CHOWN_RESTRICTED 1
   83                                 /* too-long path components generate errors */
   84 #define _POSIX_NO_TRUNC         1
   85                                 /* may disable terminal special characters */
   86 #ifndef _POSIX_VDISABLE
   87 #define _POSIX_VDISABLE         ((unsigned char)'\377')
   88 #endif
   89 
   90 #define _POSIX_THREADS
   91 #define _POSIX_THREAD_ATTR_STACKADDR
   92 #define _POSIX_THREAD_ATTR_STACKSIZE
   93 #define _POSIX_THREAD_PRIORITY_SCHEDULING
   94 #define _POSIX_THREAD_PRIO_INHERIT
   95 #define _POSIX_THREAD_PRIO_PROTECT
   96 
   97 #define _POSIX_THREAD_KEYS_MAX 128
   98 
   99 /* access function */
  100 #define F_OK            0       /* test for existence of file */
  101 #define X_OK            0x01    /* test for execute or search permission */
  102 #define W_OK            0x02    /* test for write permission */
  103 #define R_OK            0x04    /* test for read permission */
  104 
  105 /* whence values for lseek(2) */
  106 #define SEEK_SET        0       /* set file offset to offset */
  107 #define SEEK_CUR        1       /* set file offset to current plus offset */
  108 #define SEEK_END        2       /* set file offset to EOF plus offset */
  109 
  110 #ifndef _POSIX_SOURCE
  111 /* whence values for lseek(2); renamed by POSIX 1003.1 */
  112 #define L_SET           SEEK_SET
  113 #define L_INCR          SEEK_CUR
  114 #define L_XTND          SEEK_END
  115 #endif
  116 
  117 /* configurable pathname variables */
  118 #define _PC_LINK_MAX             1
  119 #define _PC_MAX_CANON            2
  120 #define _PC_MAX_INPUT            3
  121 #define _PC_NAME_MAX             4
  122 #define _PC_PATH_MAX             5
  123 #define _PC_PIPE_BUF             6
  124 #define _PC_CHOWN_RESTRICTED     7
  125 #define _PC_NO_TRUNC             8
  126 #define _PC_VDISABLE             9
  127 
  128 #ifndef _POSIX_SOURCE
  129 #define _PC_NAME_CHARS_MAX       10
  130 #define _PC_CASE_SENSITIVE               11
  131 #define _PC_CASE_PRESERVING              12
  132 #endif
  133 
  134 /* configurable system strings */
  135 #define _CS_PATH                 1
  136 
  137 /* async IO support */
  138 #define _POSIX_ASYNCHRONOUS_IO
  139 
  140 #endif /* !_SYS_UNISTD_H_ */

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