1 /* Copyright (C) 1991, 92, 1995-1999, 2000, 2001 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 * POSIX Standard: 5.6 File Characteristics <sys/stat.h>
28 #include <bits/types.h> /* For __mode_t and __dev_t. */
31 # define __need_time_t
32 # include <time.h> /* For time_t. */
34 /* The Single Unix specification says that some more types are
36 # ifndef __dev_t_defined
37 typedef __dev_t dev_t;
38 # define __dev_t_defined
41 # ifndef __gid_t_defined
42 typedef __gid_t gid_t;
43 # define __gid_t_defined
46 # ifndef __ino_t_defined
47 # ifndef __USE_FILE_OFFSET64
48 typedef __ino_t ino_t;
50 typedef __ino64_t ino_t;
52 # define __ino_t_defined
55 # ifndef __mode_t_defined
56 typedef __mode_t mode_t;
57 # define __mode_t_defined
60 # ifndef __nlink_t_defined
61 typedef __nlink_t nlink_t;
62 # define __nlink_t_defined
65 # ifndef __off_t_defined
66 # ifndef __USE_FILE_OFFSET64
67 typedef __off_t off_t;
69 typedef __off64_t off_t;
71 # define __off_t_defined
74 # ifndef __uid_t_defined
75 typedef __uid_t uid_t;
76 # define __uid_t_defined
81 # ifndef __blkcnt_t_defined
82 # ifndef __USE_FILE_OFFSET64
83 typedef __blkcnt_t blkcnt_t;
85 typedef __blkcnt64_t blkcnt_t;
87 # define __blkcnt_t_defined
90 # ifndef __blksize_t_defined
91 typedef __blksize_t blksize_t;
92 # define __blksize_t_defined
98 #include <bits/stat.h>
100 #if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN
101 # define S_IFMT __S_IFMT
102 # define S_IFDIR __S_IFDIR
103 # define S_IFCHR __S_IFCHR
104 # define S_IFBLK __S_IFBLK
105 # define S_IFREG __S_IFREG
107 # define S_IFIFO __S_IFIFO
110 # define S_IFLNK __S_IFLNK
112 # if (defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN2K) \
113 && defined __S_IFSOCK
114 # define S_IFSOCK __S_IFSOCK
118 /* Test macros for file types. */
120 #define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask))
122 #define S_ISDIR(mode) __S_ISTYPE((mode), __S_IFDIR)
123 #define S_ISCHR(mode) __S_ISTYPE((mode), __S_IFCHR)
124 #define S_ISBLK(mode) __S_ISTYPE((mode), __S_IFBLK)
125 #define S_ISREG(mode) __S_ISTYPE((mode), __S_IFREG)
127 # define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFIFO)
130 # define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK)
135 # define S_ISLNK(mode) 0
138 # define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
142 /* These are from POSIX.1b. If the objects are not implemented using separate
143 distinct file types, the macros always will evaluate to zero. Unlike the
144 other S_* macros the following three take a pointer to a `struct stat'
145 object as the argument. */
146 #ifdef __USE_POSIX199309
147 # define S_TYPEISMQ(buf) __S_TYPEISMQ(buf)
148 # define S_TYPEISSEM(buf) __S_TYPEISSEM(buf)
149 # define S_TYPEISSHM(buf) __S_TYPEISSHM(buf)
153 /* Protection bits. */
155 #define S_ISUID __S_ISUID /* Set user ID on execution. */
156 #define S_ISGID __S_ISGID /* Set group ID on execution. */
158 #if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN
159 /* Save swapped text after use (sticky bit). This is pretty well obsolete. */
160 # define S_ISVTX __S_ISVTX
163 #define S_IRUSR __S_IREAD /* Read by owner. */
164 #define S_IWUSR __S_IWRITE /* Write by owner. */
165 #define S_IXUSR __S_IEXEC /* Execute by owner. */
166 /* Read, write, and execute by owner. */
167 #define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC)
169 #if defined __USE_MISC && defined __USE_BSD
170 # define S_IREAD S_IRUSR
171 # define S_IWRITE S_IWUSR
172 # define S_IEXEC S_IXUSR
175 #define S_IRGRP (S_IRUSR >> 3) /* Read by group. */
176 #define S_IWGRP (S_IWUSR >> 3) /* Write by group. */
177 #define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */
178 /* Read, write, and execute by group. */
179 #define S_IRWXG (S_IRWXU >> 3)
181 #define S_IROTH (S_IRGRP >> 3) /* Read by others. */
182 #define S_IWOTH (S_IWGRP >> 3) /* Write by others. */
183 #define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */
184 /* Read, write, and execute by others. */
185 #define S_IRWXO (S_IRWXG >> 3)
189 /* Macros for common mode bit masks. */
190 # define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
191 # define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */
192 # define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/
194 # define S_BLKSIZE 512 /* Block size for `st_blocks'. */
198 #ifndef __USE_FILE_OFFSET64
199 /* Get file attributes for FILE and put them in BUF. */
200 extern int stat (__const char *__restrict __file,
201 struct stat *__restrict __buf) __THROW;
203 /* Get file attributes for the file, device, pipe, or socket
204 that file descriptor FD is open on and put them in BUF. */
205 extern int fstat (int __fd, struct stat *__buf) __THROW;
208 extern int __REDIRECT (stat,
209 (__const char *__restrict __file,
210 struct stat *__restrict __buf) __THROW,
212 extern int __REDIRECT (fstat, (int __fd, struct stat *__buf) __THROW, fstat64);
215 # define fstat fstat64
218 #ifdef __USE_LARGEFILE64
219 extern int stat64 (__const char *__restrict __file,
220 struct stat64 *__restrict __buf) __THROW;
221 extern int fstat64 (int __fd, struct stat64 *__buf) __THROW;
224 #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
225 # ifndef __USE_FILE_OFFSET64
226 /* Get file attributes about FILE and put them in BUF.
227 If FILE is a symbolic link, do not follow it. */
228 extern int lstat (__const char *__restrict __file,
229 struct stat *__restrict __buf) __THROW;
232 extern int __REDIRECT (lstat,
233 (__const char *__restrict __file,
234 struct stat *__restrict __buf) __THROW,
237 # define lstat lstat64
240 # ifdef __USE_LARGEFILE64
241 extern int lstat64 (__const char *__restrict __file,
242 struct stat64 *__restrict __buf) __THROW;
246 /* Set file access permissions for FILE to MODE.
247 This takes an `int' MODE argument because that
248 is what `mode_t's get widened to. */
249 extern int chmod (__const char *__file, __mode_t __mode) __THROW;
251 /* Set file access permissions of the file FD is open on to MODE. */
252 #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
253 extern int fchmod (int __fd, __mode_t __mode) __THROW;
257 /* Set the file creation mask of the current process to MASK,
258 and return the old creation mask. */
259 extern __mode_t umask (__mode_t __mask) __THROW;
262 /* Get the current `umask' value without changing it.
263 This function is only available under the GNU Hurd. */
264 extern __mode_t getumask (void) __THROW;
267 /* Create a new directory named PATH, with permission bits MODE. */
268 extern int mkdir (__const char *__path, __mode_t __mode) __THROW;
270 /* Create a device file named PATH, with permission and special bits MODE
271 and device number DEV (which can be constructed from major and minor
272 device numbers with the `makedev' macro above). */
273 #if defined __USE_MISC || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
274 extern int mknod (__const char *__path, __mode_t __mode, __dev_t __dev)
278 /* Create a new FIFO named PATH, with permission bits MODE. */
279 extern int mkfifo (__const char *__path, __mode_t __mode) __THROW;
284 #endif /* sys/stat.h */