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/* Copyright (C) 1991, 92, 95, 96, 97, 98 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Library General Public License as
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   published by the Free Software Foundation; either version 2 of the
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   License, or (at your option) any later version.
8
 
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
   Library General Public License for more details.
13
 
14
   You should have received a copy of the GNU Library General Public
15
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
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   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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19
/*
20
 *      POSIX Standard: 5.6 File Characteristics        <sys/stat.h>
21
 */
22
 
23
#ifndef _SYS_STAT_H
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#define _SYS_STAT_H     1
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26
#include <features.h>
27
 
28
#include <bits/types.h>         /* For __mode_t and __dev_t.  */
29
#include <sys/htypes.h>
30
 
31
#ifdef __USE_XOPEN
32
# define __need_time_t
33
# include <time.h>              /* For time_t.  */
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#endif
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36
/* The Single Unix specification says that some more types are
37
   available here.  */
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__DJ_dev_t
39
#undef __DJ_dev_t
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#define __DJ_dev_t
41
 
42
__DJ_gid_t
43
#undef __DJ_gid_t
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#define __DJ_gid_t
45
 
46
# ifndef ino_t
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#  ifndef __USE_FILE_OFFSET64
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__DJ_ino_t
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#undef __DJ_ino_t
50
#define __DJ_ino_t
51
#  else
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typedef __ino64_t ino_t;
53
#  endif
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#  define ino_t ino_t
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# endif
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57
__DJ_mode_t
58
#undef __DJ_mode_t
59
#define __DJ_mode_t
60
 
61
__DJ_nlink_t
62
#undef __DJ_nlink_t
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#define __DJ_nlink_t
64
 
65
# ifndef off_t
66
#  ifndef __USE_FILE_OFFSET64
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__DJ_off_t
68
#undef __DJ_off_t
69
#define __DJ_off_t
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#  else
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typedef __off64_t off_t;
72
#  endif
73
#  define off_t off_t
74
# endif
75
 
76
__DJ_uid_t
77
#undef __DJ_uid_t
78
#define __DJ_uid_t
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80
#ifdef __USE_UNIX98
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__DJ_pid_t
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#undef __DJ_pid_t
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#define __DJ_pid_t
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#endif  /* Unix98 */
85
 
86
__BEGIN_DECLS
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88
#include <bits/stat.h>
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90
#if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN
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# define S_IFMT         __S_IFMT
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# define S_IFDIR        __S_IFDIR
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# define S_IFCHR        __S_IFCHR
94
# define S_IFBLK        __S_IFBLK
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# define S_IFREG        __S_IFREG
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# ifdef __S_IFIFO
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#  define S_IFIFO       __S_IFIFO
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# endif
99
# if defined __USE_BSD || defined __USE_MISC
100
#  ifdef __S_IFLNK
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#   define S_IFLNK      __S_IFLNK
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#  endif
103
#  ifdef __S_IFSOCK
104
#   define S_IFSOCK     __S_IFSOCK
105
#  endif
106
# endif
107
#endif
108
 
109
/* Test macros for file types.  */
110
 
111
#define __S_ISTYPE(mode, mask)  (((mode) & __S_IFMT) == (mask))
112
 
113
#define S_ISDIR(mode)    __S_ISTYPE((mode), __S_IFDIR)
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#define S_ISCHR(mode)    __S_ISTYPE((mode), __S_IFCHR)
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#define S_ISBLK(mode)    __S_ISTYPE((mode), __S_IFBLK)
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#define S_ISREG(mode)    __S_ISTYPE((mode), __S_IFREG)
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#ifdef __S_IFIFO
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# define S_ISFIFO(mode)  __S_ISTYPE((mode), __S_IFIFO)
119
#endif
120
 
121
#ifdef  __USE_BSD
122
# ifdef __S_IFLNK
123
#  define S_ISLNK(mode)  __S_ISTYPE((mode), __S_IFLNK)
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# else
125
#  define S_ISLNK(mode)  0
126
# endif
127
# ifdef __S_IFSOCK
128
#  define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
129
# endif
130
#endif
131
 
132
 
133
/* Protection bits.  */
134
 
135
#define S_ISUID __S_ISUID       /* Set user ID on execution.  */
136
#define S_ISGID __S_ISGID       /* Set group ID on execution.  */
137
 
138
#if defined __USE_BSD || defined __USE_MISC
139
/* Save swapped text after use (sticky bit).  This is pretty well obsolete.  */
140
# define S_ISVTX        __S_ISVTX
141
#endif
142
 
143
#define S_IRUSR __S_IREAD       /* Read by owner.  */
144
#define S_IWUSR __S_IWRITE      /* Write by owner.  */
145
#define S_IXUSR __S_IEXEC       /* Execute by owner.  */
146
/* Read, write, and execute by owner.  */
147
#define S_IRWXU (__S_IREAD|__S_IWRITE|__S_IEXEC)
148
 
149
#if defined __USE_MISC && defined __USE_BSD
150
# define S_IREAD        S_IRUSR
151
# define S_IWRITE       S_IWUSR
152
# define S_IEXEC        S_IXUSR
153
#endif
154
 
155
#define S_IRGRP (S_IRUSR >> 3)  /* Read by group.  */
156
#define S_IWGRP (S_IWUSR >> 3)  /* Write by group.  */
157
#define S_IXGRP (S_IXUSR >> 3)  /* Execute by group.  */
158
/* Read, write, and execute by group.  */
159
#define S_IRWXG (S_IRWXU >> 3)
160
 
161
#define S_IROTH (S_IRGRP >> 3)  /* Read by others.  */
162
#define S_IWOTH (S_IWGRP >> 3)  /* Write by others.  */
163
#define S_IXOTH (S_IXGRP >> 3)  /* Execute by others.  */
164
/* Read, write, and execute by others.  */
165
#define S_IRWXO (S_IRWXG >> 3)
166
 
167
 
168
#ifdef  __USE_BSD
169
/* Macros for common mode bit masks.  */
170
# define ACCESSPERMS (S_IRWXU|S_IRWXG|S_IRWXO) /* 0777 */
171
# define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)/* 07777 */
172
# define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)/* 0666*/
173
 
174
# define S_BLKSIZE      512     /* Block size for `st_blocks'.  */
175
#endif
176
 
177
 
178
#ifndef __USE_FILE_OFFSET64
179
/* Get file attributes for FILE and put them in BUF.  */
180
extern int stat __P ((__const char *__file, struct stat *__buf));
181
 
182
/* Get file attributes for the file, device, pipe, or socket
183
   that file descriptor FD is open on and put them in BUF.  */
184
extern int fstat __P ((int __fd, struct stat *__buf));
185
#else
186
# ifdef __REDIRECT
187
extern int __REDIRECT (stat, __P ((__const char *__file, struct stat *__buf)),
188
                       stat64);
189
extern int __REDIRECT (fstat, __P ((int __fd, struct stat *__buf)), fstat64);
190
# else
191
#  define stat stat64
192
#  define fstat fstat64
193
# endif
194
#endif
195
#ifdef __USE_LARGEFILE64
196
extern int stat64 __P ((__const char *__file, struct stat64 *__buf));
197
extern int fstat64 __P ((int __fd, struct stat64 *__buf));
198
#endif
199
 
200
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
201
# ifndef __USE_FILE_OFFSET64
202
/* Get file attributes about FILE and put them in BUF.
203
   If FILE is a symbolic link, do not follow it.  */
204
extern int lstat __P ((__const char *__file, struct stat *__buf));
205
# else
206
#  ifdef __REDIRECT
207
extern int __REDIRECT (lstat, __P ((__const char *__file, struct stat *__buf)),
208
                       lstat64);
209
#  else
210
#   define lstat lstat64
211
#  endif
212
# endif
213
# ifdef __USE_LARGEFILE64
214
extern int lstat64 __P ((__const char *__file, struct stat64 *__buf));
215
# endif
216
#endif
217
 
218
/* Set file access permissions for FILE to MODE.
219
   This takes an `int' MODE argument because that
220
   is what `mode_t's get widened to.  */
221
extern int chmod __P ((__const char *__file, __mode_t __mode));
222
 
223
/* Set file access permissions of the file FD is open on to MODE.  */
224
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
225
extern int fchmod __P ((int __fd, __mode_t __mode));
226
#endif
227
 
228
 
229
/* Set the file creation mask of the current process to MASK,
230
   and return the old creation mask.  */
231
extern __mode_t umask __P ((__mode_t __mask));
232
 
233
#ifdef  __USE_GNU
234
/* Get the current `umask' value without changing it.
235
   This function is only available under the GNU Hurd.  */
236
extern __mode_t getumask __P ((void));
237
#endif
238
 
239
/* Create a new directory named PATH, with permission bits MODE.  */
240
extern int mkdir __P ((__const char *__path, __mode_t __mode));
241
 
242
/* Create a device file named PATH, with permission and special bits MODE
243
   and device number DEV (which can be constructed from major and minor
244
   device numbers with the `makedev' macro above).  */
245
#if defined __USE_MISC || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
246
extern int mknod __P ((__const char *__path,
247
                       __mode_t __mode, __dev_t __dev));
248
#endif
249
 
250
 
251
/* Create a new FIFO named PATH, with permission bits MODE.  */
252
extern int mkfifo __P ((__const char *__path, __mode_t __mode));
253
 
254
/* To allow the `struct stat' structure and the file type `mode_t'
255
   bits to vary without changing shared library major version number,
256
   the `stat' family of functions and `mknod' are in fact inline
257
   wrappers around calls to `xstat', `fxstat', `lxstat', and `xmknod',
258
   which all take a leading version-number argument designating the
259
   data structure and bits used.  <bits/stat.h> defines _STAT_VER with
260
   the version number corresponding to `struct stat' as defined in
261
   that file; and _MKNOD_VER with the version number corresponding to
262
   the S_IF* macros defined therein.  It is arranged that when not
263
   inlined these function are always statically linked; that way a
264
   dynamically-linked executable always encodes the version number
265
   corresponding to the data structures it uses, so the `x' functions
266
   in the shared library can adapt without needing to recompile all
267
   callers.  */
268
 
269
#ifndef _STAT_VER
270
# define _STAT_VER      0
271
#endif
272
#ifndef _MKNOD_VER
273
# define _MKNOD_VER     0
274
#endif
275
 
276
/* Wrappers for stat and mknod system calls.  */
277
#ifndef __USE_FILE_OFFSET64
278
extern int __fxstat __P ((int __ver, int __fildes,
279
                          struct stat *__stat_buf));
280
extern int __xstat __P ((int __ver, __const char *__filename,
281
                         struct stat *__stat_buf));
282
extern int __lxstat __P ((int __ver, __const char *__filename,
283
                          struct stat *__stat_buf));
284
#else
285
# ifdef __REDIRECT
286
extern int __REDIRECT (__fxstat, __P ((int __ver, int __fildes,
287
                                       struct stat *__stat_buf)), __fxstat64);
288
extern int __REDIRECT (__xstat, __P ((int __ver, __const char *__filename,
289
                                      struct stat *__stat_buf)), __xstat64);
290
extern int __REDIRECT (__lxstat, __P ((int __ver, __const char *__filename,
291
                                       struct stat *__stat_buf)), __lxstat64);
292
 
293
# else
294
#  define __fxstat __fxstat64
295
#  define __xstat __xstat64
296
#  define __lxstat __lxstat64
297
# endif
298
#endif
299
 
300
#ifdef __USE_LARGEFILE64
301
extern int __fxstat64 __P ((int __ver, int __fildes,
302
                            struct stat64 *__stat_buf));
303
extern int __xstat64 __P ((int __ver, __const char *__filename,
304
                           struct stat64 *__stat_buf));
305
extern int __lxstat64 __P ((int __ver, __const char *__filename,
306
                            struct stat64 *__stat_buf));
307
#endif
308
extern int __xmknod __P ((int __ver, __const char *__path,
309
                          __mode_t __mode, __dev_t *__dev));
310
 
311
#if defined __GNUC__ && __GNUC__ >= 2
312
/* Inlined versions of the real stat and mknod functions.  */
313
 
314
extern __inline__ int stat (__const char *__path,
315
                            struct stat *__statbuf) __THROW
316
{
317
  return __xstat (_STAT_VER, __path, __statbuf);
318
}
319
 
320
# if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
321
extern __inline__ int lstat (__const char *__path,
322
                             struct stat *__statbuf) __THROW
323
{
324
  return __lxstat (_STAT_VER, __path, __statbuf);
325
}
326
# endif
327
 
328
extern __inline__ int fstat (int __fd, struct stat *__statbuf) __THROW
329
{
330
  return __fxstat (_STAT_VER, __fd, __statbuf);
331
}
332
 
333
# if defined __USE_MISC || defined __USE_BSD
334
extern __inline__ int mknod (__const char *__path, __mode_t __mode,
335
                             __dev_t __dev) __THROW
336
{
337
  return __xmknod (_MKNOD_VER, __path, __mode, &__dev);
338
}
339
# endif
340
 
341
# ifdef __USE_LARGEFILE64
342
extern __inline__ int stat64 (__const char *__path,
343
                              struct stat64 *__statbuf) __THROW
344
{
345
  return __xstat64 (_STAT_VER, __path, __statbuf);
346
}
347
 
348
#  if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
349
extern __inline__ int lstat64 (__const char *__path,
350
                               struct stat64 *__statbuf) __THROW
351
{
352
  return __lxstat64 (_STAT_VER, __path, __statbuf);
353
}
354
#  endif
355
 
356
extern __inline__ int fstat64 (int __fd, struct stat64 *__statbuf) __THROW
357
{
358
  return __fxstat64 (_STAT_VER, __fd, __statbuf);
359
}
360
# endif
361
 
362
#endif
363
 
364
__END_DECLS
365
 
366
 
367
#endif /* sys/stat.h  */