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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: #include <sys/_types/_posix_vdisable.h> 85: 86: #define _POSIX_THREAD_KEYS_MAX 128 87: 88: /* access function */ 89: #define F_OK 0 /* test for existence of file */ 90: #define X_OK (1<<0) /* test for execute or search permission */ 91: #define W_OK (1<<1) /* test for write permission */ 92: #define R_OK (1<<2) /* test for read permission */ 93: 94: #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 95: /* 96: * Extended access functions. 97: * Note that we depend on these matching the definitions in sys/kauth.h, 98: * but with the bits shifted left by 8. 99: */ 100: #define _READ_OK (1<<9) /* read file data / read directory */ 101: #define _WRITE_OK (1<<10) /* write file data / add file to directory */ 102: #define _EXECUTE_OK (1<<11) /* execute file / search in directory*/ 103: #define _DELETE_OK (1<<12) /* delete file / delete directory */ 104: #define _APPEND_OK (1<<13) /* append to file / add subdirectory to directory */ 105: #define _RMFILE_OK (1<<14) /* - / remove file from directory */ 106: #define _RATTR_OK (1<<15) /* read basic attributes */ 107: #define _WATTR_OK (1<<16) /* write basic attributes */ 108: #define _REXT_OK (1<<17) /* read extended attributes */ 109: #define _WEXT_OK (1<<18) /* write extended attributes */ 110: #define _RPERM_OK (1<<19) /* read permissions */ 111: #define _WPERM_OK (1<<20) /* write permissions */ 112: #define _CHOWN_OK (1<<21) /* change ownership */ 113: 114: #define _ACCESS_EXTENDED_MASK (_READ_OK | _WRITE_OK | _EXECUTE_OK | \ 115: _DELETE_OK | _APPEND_OK | \ 116: _RMFILE_OK | _REXT_OK | \ 117: _WEXT_OK | _RATTR_OK | _WATTR_OK | _RPERM_OK | \ 118: _WPERM_OK | _CHOWN_OK) 119: #endif 120: 121: /* whence values for lseek(2) */ 122: #include <sys/_types/_seek_set.h> 123: 124: #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 125: /* whence values for lseek(2); renamed by POSIX 1003.1 */ 126: #define L_SET SEEK_SET 127: #define L_INCR SEEK_CUR 128: #define L_XTND SEEK_END 129: #endif 130: 131: #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 132: struct accessx_descriptor { 133: unsigned int ad_name_offset; 134: int ad_flags; 135: int ad_pad[2]; 136: }; 137: #define ACCESSX_MAX_DESCRIPTORS 100 138: #define ACCESSX_MAX_TABLESIZE (16 * 1024) 139: #endif 140: 141: /* configurable pathname variables */ 142: #define _PC_LINK_MAX 1 143: #define _PC_MAX_CANON 2 144: #define _PC_MAX_INPUT 3 145: #define _PC_NAME_MAX 4 146: #define _PC_PATH_MAX 5 147: #define _PC_PIPE_BUF 6 148: #define _PC_CHOWN_RESTRICTED 7 149: #define _PC_NO_TRUNC 8 150: #define _PC_VDISABLE 9 151: 152: #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 153: #define _PC_NAME_CHARS_MAX 10 154: #define _PC_CASE_SENSITIVE 11 155: #define _PC_CASE_PRESERVING 12 156: #define _PC_EXTENDED_SECURITY_NP 13 157: #define _PC_AUTH_OPAQUE_NP 14 158: #endif 159: 160: #define _PC_2_SYMLINKS 15 /* Symlink supported in directory */ 161: #define _PC_ALLOC_SIZE_MIN 16 /* Minimum storage actually allocated */ 162: #define _PC_ASYNC_IO 17 /* Async I/O [AIO] supported? */ 163: #define _PC_FILESIZEBITS 18 /* # of bits to represent file size */ 164: #define _PC_PRIO_IO 19 /* Priority I/O [PIO] supported? */ 165: #define _PC_REC_INCR_XFER_SIZE 20 /* Recommended increment for next two */ 166: #define _PC_REC_MAX_XFER_SIZE 21 /* Recommended max file transfer size */ 167: #define _PC_REC_MIN_XFER_SIZE 22 /* Recommended min file transfer size */ 168: #define _PC_REC_XFER_ALIGN 23 /* Recommended buffer alignment */ 169: #define _PC_SYMLINK_MAX 24 /* Max # of bytes in symlink name */ 170: #define _PC_SYNC_IO 25 /* Sync I/O [SIO] supported? */ 171: #define _PC_XATTR_SIZE_BITS 26 /* # of bits to represent maximum xattr size */ 172: 173: /* configurable system strings */ 174: #define _CS_PATH 1 175: 176: #endif /* !_SYS_UNISTD_H_ */ 177: