master
1/*
2 * Copyright (c) 2000-2013 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)
132struct 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#define _PC_MIN_HOLE_SIZE 27 /* Recommended minimum hole size for sparse files */
173
174/* configurable system strings */
175#define _CS_PATH 1
176
177#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
178
179#include <machine/_types.h>
180#include <sys/_types/_size_t.h>
181#include <sys/_types/_ssize_t.h>
182#include <_types/_uint64_t.h>
183#include <_types/_uint32_t.h>
184#include <Availability.h>
185
186__BEGIN_DECLS
187
188int getattrlistbulk(int, void *, void *, size_t, uint64_t) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
189int getattrlistat(int, const char *, void *, void *, size_t, unsigned long) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
190int setattrlistat(int, const char *, void *, void *, size_t, uint32_t) __OSX_AVAILABLE(10.13) __IOS_AVAILABLE(11.0) __TVOS_AVAILABLE(11.0) __WATCHOS_AVAILABLE(4.0);
191ssize_t freadlink(int, char * __restrict, size_t) __API_AVAILABLE(macos(13.0), ios(16.0), tvos(16.0), watchos(9.0));
192
193__END_DECLS
194
195#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
196
197#if __DARWIN_C_LEVEL >= 200809L
198
199#include <machine/_types.h>
200#include <sys/_types/_size_t.h>
201#include <sys/_types/_ssize_t.h>
202#include <sys/_types.h>
203#include <sys/_types/_uid_t.h>
204#include <sys/_types/_gid_t.h>
205#include <Availability.h>
206
207__BEGIN_DECLS
208
209int faccessat(int, const char *, int, int) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
210int fchownat(int, const char *, uid_t, gid_t, int) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
211int linkat(int, const char *, int, const char *, int) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
212ssize_t readlinkat(int, const char *, char *, size_t) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
213int symlinkat(const char *, int, const char *) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
214int unlinkat(int, const char *, int) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0);
215
216__END_DECLS
217
218#endif /* __DARWIN_C_LEVEL >= 200809L */
219
220#endif /* !_SYS_UNISTD_H_ */