bsd/sys/unistd.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*
  24  * Copyright (c) 1989, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)unistd.h    8.2 (Berkeley) 1/7/94
  56  */
  57
  58 #ifndef _SYS_UNISTD_H_
  59 #define _SYS_UNISTD_H_
  60
  61 /* compile-time symbolic constants */
  62 #define _POSIX_JOB_CONTROL      /* implementation supports job control */
  63
  64 /*
  65  * Although we have saved user/group IDs, we do not use them in setuid
  66  * as described in POSIX 1003.1, because the feature does not work for
  67  * root.  We use the saved IDs in seteuid/setegid, which are not currently
  68  * part of the POSIX 1003.1 specification.
  69  */
  70 #ifdef  _NOT_AVAILABLE
  71 #define _POSIX_SAVED_IDS        /* saved set-user-ID and set-group-ID */
  72 #endif
  73
  74 #define _POSIX_VERSION          198808L
  75 #define _POSIX2_VERSION         199212L
  76
  77 /* execution-time symbolic constants */
  78                                 /* chown requires appropriate privileges */
  79 #define _POSIX_CHOWN_RESTRICTED 1
  80                                 /* too-long path components generate errors */
  81 #define _POSIX_NO_TRUNC         1
  82                                 /* may disable terminal special characters */
  83 #ifndef _POSIX_VDISABLE
  84 #define _POSIX_VDISABLE         ((unsigned char)'\377')
  85 #endif
  86
  87 #define _POSIX_THREADS
  88 #define _POSIX_THREAD_ATTR_STACKADDR
  89 #define _POSIX_THREAD_ATTR_STACKSIZE
  90 #define _POSIX_THREAD_PRIORITY_SCHEDULING
  91 #define _POSIX_THREAD_PRIO_INHERIT
  92 #define _POSIX_THREAD_PRIO_PROTECT
  93
  94 #define _POSIX_THREAD_KEYS_MAX 128
  95
  96 /* access function */
  97 #define F_OK            0       /* test for existence of file */
  98 #define X_OK            0x01    /* test for execute or search permission */
  99 #define W_OK            0x02    /* test for write permission */
 100 #define R_OK            0x04    /* test for read permission */
 101
 102 /* whence values for lseek(2) */
 103 #define SEEK_SET        0       /* set file offset to offset */
 104 #define SEEK_CUR        1       /* set file offset to current plus offset */
 105 #define SEEK_END        2       /* set file offset to EOF plus offset */
 106
 107 #ifndef _POSIX_SOURCE
 108 /* whence values for lseek(2); renamed by POSIX 1003.1 */
 109 #define L_SET           SEEK_SET
 110 #define L_INCR          SEEK_CUR
 111 #define L_XTND          SEEK_END
 112 #endif
 113
 114 /* configurable pathname variables */
 115 #define _PC_LINK_MAX             1
 116 #define _PC_MAX_CANON            2
 117 #define _PC_MAX_INPUT            3
 118 #define _PC_NAME_MAX             4
 119 #define _PC_PATH_MAX             5
 120 #define _PC_PIPE_BUF             6
 121 #define _PC_CHOWN_RESTRICTED     7
 122 #define _PC_NO_TRUNC             8
 123 #define _PC_VDISABLE             9
 124
 125 #ifndef _POSIX_SOURCE
 126 #define _PC_NAME_CHARS_MAX       10
 127 #define _PC_CASE_SENSITIVE               11
 128 #define _PC_CASE_PRESERVING              12
 129 #endif
 130
 131 /* configurable system variables */
 132 #define _SC_ARG_MAX              1
 133 #define _SC_CHILD_MAX            2
 134 #define _SC_CLK_TCK              3
 135 #define _SC_NGROUPS_MAX          4
 136 #define _SC_OPEN_MAX             5
 137 #define _SC_JOB_CONTROL          6
 138 #define _SC_SAVED_IDS            7
 139 #define _SC_VERSION              8
 140 #define _SC_BC_BASE_MAX          9
 141 #define _SC_BC_DIM_MAX          10
 142 #define _SC_BC_SCALE_MAX        11
 143 #define _SC_BC_STRING_MAX       12
 144 #define _SC_COLL_WEIGHTS_MAX    13
 145 #define _SC_EXPR_NEST_MAX       14
 146 #define _SC_LINE_MAX            15
 147 #define _SC_RE_DUP_MAX          16
 148 #define _SC_2_VERSION           17
 149 #define _SC_2_C_BIND            18
 150 #define _SC_2_C_DEV             19
 151 #define _SC_2_CHAR_TERM         20
 152 #define _SC_2_FORT_DEV          21
 153 #define _SC_2_FORT_RUN          22
 154 #define _SC_2_LOCALEDEF         23
 155 #define _SC_2_SW_DEV            24
 156 #define _SC_2_UPE               25
 157 #define _SC_STREAM_MAX          26
 158 #define _SC_TZNAME_MAX          27
 159
 160 /* configurable system strings */
 161 #define _CS_PATH                 1
 162
 163 #endif /* !_SYS_UNISTD_H_ */