1/* 2 * Copyright (c) 2000-2010 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 29/* 30 * Copyright (c) 1989, 1993 31 * The Regents of the University of California. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. All advertising materials mentioning features or use of this software 42 * must display the following acknowledgement: 43 * This product includes software developed by the University of 44 * California, Berkeley and its contributors. 45 * 4. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)unistd.h 8.2 (Berkeley) 1/7/94 62 */ 63 64#ifndef _SYS_UNISTD_H_ 65#define _SYS_UNISTD_H_ 66 67#include <sys/cdefs.h> 68 69/* 70 * Although we have saved user/group IDs, we do not use them in setuid 71 * as described in POSIX 1003.1, because the feature does not work for 72 * root. We use the saved IDs in seteuid/setegid, which are not currently 73 * part of the POSIX 1003.1 specification. 74 */ 75#ifdef _NOT_AVAILABLE 76#define _POSIX_SAVED_IDS /* saved set-user-ID and set-group-ID */ 77#endif 78 79#define _POSIX_VERSION 200112L 80#define _POSIX2_VERSION 200112L 81 82/* execution-time symbolic constants */ 83 /* may disable terminal special characters */ 84#ifndef _POSIX_VDISABLE 85#define _POSIX_VDISABLE ((unsigned char)'\377') 86#endif 87 88#define _POSIX_THREAD_KEYS_MAX 128 89 90/* access function */ 91#define F_OK 0 /* test for existence of file */ 92#define X_OK (1<<0) /* test for execute or search permission */ 93#define W_OK (1<<1) /* test for write permission */ 94#define R_OK (1<<2) /* test for read permission */ 95 96#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 97/* 98 * Extended access functions. 99 * Note that we depend on these matching the definitions in sys/kauth.h, 100 * but with the bits shifted left by 8. 101 */ 102#define _READ_OK (1<<9) /* read file data / read directory */ 103#define _WRITE_OK (1<<10) /* write file data / add file to directory */ 104#define _EXECUTE_OK (1<<11) /* execute file / search in directory*/ 105#define _DELETE_OK (1<<12) /* delete file / delete directory */ 106#define _APPEND_OK (1<<13) /* append to file / add subdirectory to directory */ 107#define _RMFILE_OK (1<<14) /* - / remove file from directory */ 108#define _RATTR_OK (1<<15) /* read basic attributes */ 109#define _WATTR_OK (1<<16) /* write basic attributes */ 110#define _REXT_OK (1<<17) /* read extended attributes */ 111#define _WEXT_OK (1<<18) /* write extended attributes */ 112#define _RPERM_OK (1<<19) /* read permissions */ 113#define _WPERM_OK (1<<20) /* write permissions */ 114#define _CHOWN_OK (1<<21) /* change ownership */ 115 116#define _ACCESS_EXTENDED_MASK (_READ_OK | _WRITE_OK | _EXECUTE_OK | \ 117 _DELETE_OK | _APPEND_OK | \ 118 _RMFILE_OK | _REXT_OK | \ 119 _WEXT_OK | _RATTR_OK | _WATTR_OK | _RPERM_OK | \ 120 _WPERM_OK | _CHOWN_OK) 121#endif 122 123/* whence values for lseek(2) */ 124#ifndef SEEK_SET 125#define SEEK_SET 0 /* set file offset to offset */ 126#define SEEK_CUR 1 /* set file offset to current plus offset */ 127#define SEEK_END 2 /* set file offset to EOF plus offset */ 128#endif /* !SEEK_SET */ 129 130#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 131/* whence values for lseek(2); renamed by POSIX 1003.1 */ 132#define L_SET SEEK_SET 133#define L_INCR SEEK_CUR 134#define L_XTND SEEK_END 135#endif 136 137#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 138struct accessx_descriptor { 139 unsigned int ad_name_offset; 140 int ad_flags; 141 int ad_pad[2]; 142}; 143#define ACCESSX_MAX_DESCRIPTORS 100 144#define ACCESSX_MAX_TABLESIZE (16 * 1024) 145#endif 146 147/* configurable pathname variables */ 148#define _PC_LINK_MAX 1 149#define _PC_MAX_CANON 2 150#define _PC_MAX_INPUT 3 151#define _PC_NAME_MAX 4 152#define _PC_PATH_MAX 5 153#define _PC_PIPE_BUF 6 154#define _PC_CHOWN_RESTRICTED 7 155#define _PC_NO_TRUNC 8 156#define _PC_VDISABLE 9 157 158#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 159#define _PC_NAME_CHARS_MAX 10 160#define _PC_CASE_SENSITIVE 11 161#define _PC_CASE_PRESERVING 12 162#define _PC_EXTENDED_SECURITY_NP 13 163#define _PC_AUTH_OPAQUE_NP 14 164#endif 165 166#define _PC_2_SYMLINKS 15 /* Symlink supported in directory */ 167#define _PC_ALLOC_SIZE_MIN 16 /* Minimum storage actually allocated */ 168#define _PC_ASYNC_IO 17 /* Async I/O [AIO] supported? */ 169#define _PC_FILESIZEBITS 18 /* # of bits to represent file size */ 170#define _PC_PRIO_IO 19 /* Priority I/O [PIO] supported? */ 171#define _PC_REC_INCR_XFER_SIZE 20 /* Recommended increment for next two */ 172#define _PC_REC_MAX_XFER_SIZE 21 /* Recommended max file transfer size */ 173#define _PC_REC_MIN_XFER_SIZE 22 /* Recommended min file transfer size */ 174#define _PC_REC_XFER_ALIGN 23 /* Recommended buffer alignment */ 175#define _PC_SYMLINK_MAX 24 /* Max # of bytes in symlink name */ 176#define _PC_SYNC_IO 25 /* Sync I/O [SIO] supported? */ 177#define _PC_XATTR_SIZE_BITS 26 /* # of bits to represent maximum xattr size */ 178 179/* configurable system strings */ 180#define _CS_PATH 1 181 182#endif /* !_SYS_UNISTD_H_ */ 183