bsd/sys/unistd.h

   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_ */