summaryrefslogtreecommitdiffstats
path: root/gl/lib/dirent.in.h
blob: f05b880077f619401a51076a00ca69a8c2ec8519 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
/* A GNU-like <dirent.h>.
   Copyright (C) 2006-2024 Free Software Foundation, Inc.

   This file is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of the
   License, or (at your option) any later version.

   This file is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#ifndef _@GUARD_PREFIX@_DIRENT_H

#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@

/* The include_next requires a split double-inclusion guard.  */
#if @HAVE_DIRENT_H@
# @INCLUDE_NEXT@ @NEXT_DIRENT_H@
#endif

#ifndef _@GUARD_PREFIX@_DIRENT_H
#define _@GUARD_PREFIX@_DIRENT_H

/* This file uses _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_MALLOC,
   _GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
#if !_GL_CONFIG_H_INCLUDED
 #error "Please include config.h first."
#endif

/* Get ino_t.  Needed on some systems, including glibc 2.8.  */
#include <sys/types.h>

#if !@HAVE_DIRENT_H@
/* Define types DIR and 'struct dirent'.  */
# if !GNULIB_defined_struct_dirent
struct dirent
{
  char d_type;
  char d_name[1];
};
/* Possible values for 'd_type'.  */
#  define DT_UNKNOWN 0
#  define DT_FIFO    1          /* FIFO */
#  define DT_CHR     2          /* character device */
#  define DT_DIR     4          /* directory */
#  define DT_BLK     6          /* block device */
#  define DT_REG     8          /* regular file */
#  define DT_LNK    10          /* symbolic link */
#  define DT_SOCK   12          /* socket */
#  define DT_WHT    14          /* whiteout */
#  define GNULIB_defined_struct_dirent 1
# endif
#endif

#if !@DIR_HAS_FD_MEMBER@
# if !GNULIB_defined_DIR
/* struct gl_directory is a type with a field 'int fd_to_close'.
   It is needed for implementing fdopendir().  */
struct gl_directory;
#  if @HAVE_DIRENT_H@
#   define DIR struct gl_directory
#  else
typedef struct gl_directory DIR;
#  endif
#  define GNULIB_defined_DIR 1
# endif
#endif

/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
   that can be freed by passing them as the Ith argument to the
   function F.  */
#ifndef _GL_ATTRIBUTE_DEALLOC
# if __GNUC__ >= 11
#  define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
# else
#  define _GL_ATTRIBUTE_DEALLOC(f, i)
# endif
#endif

/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly
   allocated memory.  */
/* Applies to: functions.  */
#ifndef _GL_ATTRIBUTE_MALLOC
# if __GNUC__ >= 3 || defined __clang__
#  define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
# else
#  define _GL_ATTRIBUTE_MALLOC
# endif
#endif

/* The __attribute__ feature is available in gcc versions 2.5 and later.
   The attribute __pure__ was added in gcc 2.96.  */
#ifndef _GL_ATTRIBUTE_PURE
# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) || defined __clang__
#  define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
#  define _GL_ATTRIBUTE_PURE /* empty */
# endif
#endif

/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */

/* The definition of _GL_ARG_NONNULL is copied here.  */

/* The definition of _GL_WARN_ON_USE is copied here.  */


/* Declare overridden functions.  */

#if @GNULIB_CLOSEDIR@
# if @REPLACE_CLOSEDIR@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef closedir
#   define closedir rpl_closedir
#   define GNULIB_defined_closedir 1
#  endif
_GL_FUNCDECL_RPL (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (closedir, int, (DIR *dirp));
# else
#  if !@HAVE_CLOSEDIR@
_GL_FUNCDECL_SYS (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (closedir, int, (DIR *dirp));
# endif
_GL_CXXALIASWARN (closedir);
#elif defined GNULIB_POSIXCHECK
# undef closedir
# if HAVE_RAW_DECL_CLOSEDIR
_GL_WARN_ON_USE (closedir, "closedir is not portable - "
                 "use gnulib module closedir for portability");
# endif
#endif

#if @GNULIB_OPENDIR@
# if @REPLACE_OPENDIR@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef opendir
#   define opendir rpl_opendir
#   define GNULIB_defined_opendir 1
#  endif
_GL_FUNCDECL_RPL (opendir, DIR *,
                  (const char *dir_name)
                  _GL_ARG_NONNULL ((1))
                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
_GL_CXXALIAS_RPL (opendir, DIR *, (const char *dir_name));
# else
#  if !@HAVE_OPENDIR@ || __GNUC__ >= 11
_GL_FUNCDECL_SYS (opendir, DIR *,
                  (const char *dir_name)
                  _GL_ARG_NONNULL ((1))
                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
#  endif
_GL_CXXALIAS_SYS (opendir, DIR *, (const char *dir_name));
# endif
_GL_CXXALIASWARN (opendir);
#else
# if @GNULIB_CLOSEDIR@ && !GNULIB_defined_DIR && __GNUC__ >= 11 && !defined opendir
/* For -Wmismatched-dealloc: Associate opendir with closedir or
   rpl_closedir.  */
_GL_FUNCDECL_SYS (opendir, DIR *,
                  (const char *dir_name)
                  _GL_ARG_NONNULL ((1))
                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
# endif
# if defined GNULIB_POSIXCHECK
#  undef opendir
#  if HAVE_RAW_DECL_OPENDIR
_GL_WARN_ON_USE (opendir, "opendir is not portable - "
                 "use gnulib module opendir for portability");
#  endif
# endif
#endif

#if @GNULIB_READDIR@
# if @REPLACE_READDIR@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef readdir
#   define readdir rpl_readdir
#  endif
_GL_FUNCDECL_RPL (readdir, struct dirent *, (DIR *dirp) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (readdir, struct dirent *, (DIR *dirp));
# else
#  if !@HAVE_READDIR@
_GL_FUNCDECL_SYS (readdir, struct dirent *, (DIR *dirp) _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (readdir, struct dirent *, (DIR *dirp));
# endif
_GL_CXXALIASWARN (readdir);
#elif defined GNULIB_POSIXCHECK
# undef readdir
# if HAVE_RAW_DECL_READDIR
_GL_WARN_ON_USE (readdir, "readdir is not portable - "
                 "use gnulib module readdir for portability");
# endif
#endif

#if @GNULIB_REWINDDIR@
# if @REPLACE_REWINDDIR@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef rewinddir
#   define rewinddir rpl_rewinddir
#  endif
_GL_FUNCDECL_RPL (rewinddir, void, (DIR *dirp) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (rewinddir, void, (DIR *dirp));
# else
#  if !@HAVE_REWINDDIR@
_GL_FUNCDECL_SYS (rewinddir, void, (DIR *dirp) _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (rewinddir, void, (DIR *dirp));
# endif
_GL_CXXALIASWARN (rewinddir);
#elif defined GNULIB_POSIXCHECK
# undef rewinddir
# if HAVE_RAW_DECL_REWINDDIR
_GL_WARN_ON_USE (rewinddir, "rewinddir is not portable - "
                 "use gnulib module rewinddir for portability");
# endif
#endif

#if @GNULIB_DIRFD@
/* Return the file descriptor associated with the given directory stream,
   or -1 if none exists.  */
# if @REPLACE_DIRFD@
/* On kLIBC, dirfd() is a macro that does not work.  Undefine it.  */
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) || defined dirfd
#   undef dirfd
#   define dirfd rpl_dirfd
#  endif
_GL_FUNCDECL_RPL (dirfd, int, (DIR *) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (dirfd, int, (DIR *));

# else
#  if defined __cplusplus && defined GNULIB_NAMESPACE && defined dirfd
    /* dirfd is defined as a macro and not as a function.
       Turn it into a function and get rid of the macro.  */
static inline int (dirfd) (DIR *dp) { return dirfd (dp); }
#   undef dirfd
#  endif
#  if !(@HAVE_DECL_DIRFD@ || defined dirfd)
_GL_FUNCDECL_SYS (dirfd, int, (DIR *) _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (dirfd, int, (DIR *));
# endif
_GL_CXXALIASWARN (dirfd);
#elif defined GNULIB_POSIXCHECK
# undef dirfd
# if HAVE_RAW_DECL_DIRFD
_GL_WARN_ON_USE (dirfd, "dirfd is unportable - "
                 "use gnulib module dirfd for portability");
# endif
#endif

#if @GNULIB_FDOPENDIR@
/* Open a directory stream visiting the given directory file
   descriptor.  Return NULL and set errno if fd is not visiting a
   directory.  On success, this function consumes fd (it will be
   implicitly closed either by this function or by a subsequent
   closedir).  */
# if @REPLACE_FDOPENDIR@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef fdopendir
#   define fdopendir rpl_fdopendir
#  endif
_GL_FUNCDECL_RPL (fdopendir, DIR *,
                  (int fd)
                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
_GL_CXXALIAS_RPL (fdopendir, DIR *, (int fd));
# else
#  if !@HAVE_FDOPENDIR@ || !@HAVE_DECL_FDOPENDIR@ || __GNUC__ >= 11
_GL_FUNCDECL_SYS (fdopendir, DIR *,
                  (int fd)
                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
#  endif
_GL_CXXALIAS_SYS (fdopendir, DIR *, (int fd));
# endif
_GL_CXXALIASWARN (fdopendir);
#else
# if @GNULIB_CLOSEDIR@ && __GNUC__ >= 11 && !defined fdopendir
/* For -Wmismatched-dealloc: Associate fdopendir with closedir or
   rpl_closedir.  */
_GL_FUNCDECL_SYS (fdopendir, DIR *,
                  (int fd)
                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
# endif
# if defined GNULIB_POSIXCHECK
#  undef fdopendir
#  if HAVE_RAW_DECL_FDOPENDIR
_GL_WARN_ON_USE (fdopendir, "fdopendir is unportable - "
                 "use gnulib module fdopendir for portability");
#  endif
# endif
#endif

#if @GNULIB_SCANDIR@
/* Scan the directory DIR, calling FILTER on each directory entry.
   Entries for which FILTER returns nonzero are individually malloc'd,
   sorted using qsort with CMP, and collected in a malloc'd array in
   *NAMELIST.  Returns the number of entries selected, or -1 on error.  */
# if !@HAVE_SCANDIR@
_GL_FUNCDECL_SYS (scandir, int,
                  (const char *dir, struct dirent ***namelist,
                   int (*filter) (const struct dirent *),
                   int (*cmp) (const struct dirent **, const struct dirent **))
                  _GL_ARG_NONNULL ((1, 2, 4)));
# endif
/* Need to cast, because on glibc systems, the fourth parameter is
                        int (*cmp) (const void *, const void *).  */
_GL_CXXALIAS_SYS_CAST (scandir, int,
                       (const char *dir, struct dirent ***namelist,
                        int (*filter) (const struct dirent *),
                        int (*cmp) (const struct dirent **, const struct dirent **)));
_GL_CXXALIASWARN (scandir);
#elif defined GNULIB_POSIXCHECK
# undef scandir
# if HAVE_RAW_DECL_SCANDIR
_GL_WARN_ON_USE (scandir, "scandir is unportable - "
                 "use gnulib module scandir for portability");
# endif
#endif

#if @GNULIB_ALPHASORT@
/* Compare two 'struct dirent' entries alphabetically.  */
# if !@HAVE_ALPHASORT@
_GL_FUNCDECL_SYS (alphasort, int,
                  (const struct dirent **, const struct dirent **)
                  _GL_ATTRIBUTE_PURE
                  _GL_ARG_NONNULL ((1, 2)));
# endif
/* Need to cast, because on glibc systems, the parameters are
                       (const void *, const void *).  */
_GL_CXXALIAS_SYS_CAST (alphasort, int,
                       (const struct dirent **, const struct dirent **));
_GL_CXXALIASWARN (alphasort);
#elif defined GNULIB_POSIXCHECK
# undef alphasort
# if HAVE_RAW_DECL_ALPHASORT
_GL_WARN_ON_USE (alphasort, "alphasort is unportable - "
                 "use gnulib module alphasort for portability");
# endif
#endif


#endif /* _@GUARD_PREFIX@_DIRENT_H */
#endif /* _@GUARD_PREFIX@_DIRENT_H */