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1 | /* A GNU-like <dirent.h>. |
2 | Copyright (C) 2006-2012 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software: you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 3 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program 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 | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
16 | ||
17 | #ifndef _@GUARD_PREFIX@_DIRENT_H | |
18 | ||
19 | #if __GNUC__ >= 3 | |
20 | @PRAGMA_SYSTEM_HEADER@ | |
21 | #endif | |
22 | @PRAGMA_COLUMNS@ | |
23 | ||
24 | /* The include_next requires a split double-inclusion guard. */ | |
25 | #if @HAVE_DIRENT_H@ | |
26 | # @INCLUDE_NEXT@ @NEXT_DIRENT_H@ | |
27 | #endif | |
28 | ||
29 | #ifndef _@GUARD_PREFIX@_DIRENT_H | |
30 | #define _@GUARD_PREFIX@_DIRENT_H | |
31 | ||
32 | /* Get ino_t. Needed on some systems, including glibc 2.8. */ | |
33 | #include <sys/types.h> | |
34 | ||
35 | #if !@HAVE_DIRENT_H@ | |
36 | /* Define types DIR and 'struct dirent'. */ | |
37 | # if !GNULIB_defined_struct_dirent | |
38 | struct dirent | |
39 | { | |
40 | char d_type; | |
41 | char d_name[1]; | |
42 | }; | |
43 | /* Possible values for 'd_type'. */ | |
44 | # define DT_UNKNOWN 0 | |
45 | # define DT_FIFO 1 /* FIFO */ | |
46 | # define DT_CHR 2 /* character device */ | |
47 | # define DT_DIR 4 /* directory */ | |
48 | # define DT_BLK 6 /* block device */ | |
49 | # define DT_REG 8 /* regular file */ | |
50 | # define DT_LNK 10 /* symbolic link */ | |
51 | # define DT_SOCK 12 /* socket */ | |
52 | # define DT_WHT 14 /* whiteout */ | |
53 | typedef struct gl_directory DIR; | |
54 | # define GNULIB_defined_struct_dirent 1 | |
55 | # endif | |
56 | #endif | |
57 | ||
58 | /* The __attribute__ feature is available in gcc versions 2.5 and later. | |
59 | The attribute __pure__ was added in gcc 2.96. */ | |
60 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) | |
61 | # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) | |
62 | #else | |
63 | # define _GL_ATTRIBUTE_PURE /* empty */ | |
64 | #endif | |
65 | ||
66 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ | |
67 | ||
68 | /* The definition of _GL_ARG_NONNULL is copied here. */ | |
69 | ||
70 | /* The definition of _GL_WARN_ON_USE is copied here. */ | |
71 | ||
72 | ||
73 | /* Declare overridden functions. */ | |
74 | ||
75 | #if @GNULIB_OPENDIR@ | |
76 | # if @REPLACE_OPENDIR@ | |
77 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
78 | # undef opendir | |
79 | # define opendir rpl_opendir | |
80 | # endif | |
81 | _GL_FUNCDECL_RPL (opendir, DIR *, (const char *dir_name) _GL_ARG_NONNULL ((1))); | |
82 | _GL_CXXALIAS_RPL (opendir, DIR *, (const char *dir_name)); | |
83 | # else | |
84 | # if !@HAVE_OPENDIR@ | |
85 | _GL_FUNCDECL_SYS (opendir, DIR *, (const char *dir_name) _GL_ARG_NONNULL ((1))); | |
86 | # endif | |
87 | _GL_CXXALIAS_SYS (opendir, DIR *, (const char *dir_name)); | |
88 | # endif | |
89 | _GL_CXXALIASWARN (opendir); | |
90 | #elif defined GNULIB_POSIXCHECK | |
91 | # undef opendir | |
92 | # if HAVE_RAW_DECL_OPENDIR | |
93 | _GL_WARN_ON_USE (opendir, "opendir is not portable - " | |
94 | "use gnulib module opendir for portability"); | |
95 | # endif | |
96 | #endif | |
97 | ||
98 | #if @GNULIB_READDIR@ | |
99 | # if !@HAVE_READDIR@ | |
100 | _GL_FUNCDECL_SYS (readdir, struct dirent *, (DIR *dirp) _GL_ARG_NONNULL ((1))); | |
101 | # endif | |
102 | _GL_CXXALIAS_SYS (readdir, struct dirent *, (DIR *dirp)); | |
103 | _GL_CXXALIASWARN (readdir); | |
104 | #elif defined GNULIB_POSIXCHECK | |
105 | # undef readdir | |
106 | # if HAVE_RAW_DECL_READDIR | |
107 | _GL_WARN_ON_USE (readdir, "readdir is not portable - " | |
108 | "use gnulib module readdir for portability"); | |
109 | # endif | |
110 | #endif | |
111 | ||
112 | #if @GNULIB_REWINDDIR@ | |
113 | # if !@HAVE_REWINDDIR@ | |
114 | _GL_FUNCDECL_SYS (rewinddir, void, (DIR *dirp) _GL_ARG_NONNULL ((1))); | |
115 | # endif | |
116 | _GL_CXXALIAS_SYS (rewinddir, void, (DIR *dirp)); | |
117 | _GL_CXXALIASWARN (rewinddir); | |
118 | #elif defined GNULIB_POSIXCHECK | |
119 | # undef rewinddir | |
120 | # if HAVE_RAW_DECL_REWINDDIR | |
121 | _GL_WARN_ON_USE (rewinddir, "rewinddir is not portable - " | |
122 | "use gnulib module rewinddir for portability"); | |
123 | # endif | |
124 | #endif | |
125 | ||
126 | #if @GNULIB_CLOSEDIR@ | |
127 | # if @REPLACE_CLOSEDIR@ | |
128 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
129 | # undef closedir | |
130 | # define closedir rpl_closedir | |
131 | # endif | |
132 | _GL_FUNCDECL_RPL (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1))); | |
133 | _GL_CXXALIAS_RPL (closedir, int, (DIR *dirp)); | |
134 | # else | |
135 | # if !@HAVE_CLOSEDIR@ | |
136 | _GL_FUNCDECL_SYS (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1))); | |
137 | # endif | |
138 | _GL_CXXALIAS_SYS (closedir, int, (DIR *dirp)); | |
139 | # endif | |
140 | _GL_CXXALIASWARN (closedir); | |
141 | #elif defined GNULIB_POSIXCHECK | |
142 | # undef closedir | |
143 | # if HAVE_RAW_DECL_CLOSEDIR | |
144 | _GL_WARN_ON_USE (closedir, "closedir is not portable - " | |
145 | "use gnulib module closedir for portability"); | |
146 | # endif | |
147 | #endif | |
148 | ||
149 | #if @GNULIB_DIRFD@ | |
150 | /* Return the file descriptor associated with the given directory stream, | |
151 | or -1 if none exists. */ | |
152 | # if @REPLACE_DIRFD@ | |
153 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
154 | # undef dirfd | |
155 | # define dirfd rpl_dirfd | |
156 | # endif | |
157 | _GL_FUNCDECL_RPL (dirfd, int, (DIR *) _GL_ARG_NONNULL ((1))); | |
158 | _GL_CXXALIAS_RPL (dirfd, int, (DIR *)); | |
159 | # else | |
160 | # if defined __cplusplus && defined GNULIB_NAMESPACE && defined dirfd | |
161 | /* dirfd is defined as a macro and not as a function. | |
162 | Turn it into a function and get rid of the macro. */ | |
163 | static inline int (dirfd) (DIR *dp) { return dirfd (dp); } | |
164 | # undef dirfd | |
165 | # endif | |
166 | # if !(@HAVE_DECL_DIRFD@ || defined dirfd) | |
167 | _GL_FUNCDECL_SYS (dirfd, int, (DIR *) _GL_ARG_NONNULL ((1))); | |
168 | # endif | |
169 | _GL_CXXALIAS_SYS (dirfd, int, (DIR *)); | |
170 | # endif | |
171 | _GL_CXXALIASWARN (dirfd); | |
172 | #elif defined GNULIB_POSIXCHECK | |
173 | # undef dirfd | |
174 | # if HAVE_RAW_DECL_DIRFD | |
175 | _GL_WARN_ON_USE (dirfd, "dirfd is unportable - " | |
176 | "use gnulib module dirfd for portability"); | |
177 | # endif | |
178 | #endif | |
179 | ||
180 | #if @GNULIB_FDOPENDIR@ | |
181 | /* Open a directory stream visiting the given directory file | |
182 | descriptor. Return NULL and set errno if fd is not visiting a | |
183 | directory. On success, this function consumes fd (it will be | |
184 | implicitly closed either by this function or by a subsequent | |
185 | closedir). */ | |
186 | # if @REPLACE_FDOPENDIR@ | |
187 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
188 | # undef fdopendir | |
189 | # define fdopendir rpl_fdopendir | |
190 | # endif | |
191 | _GL_FUNCDECL_RPL (fdopendir, DIR *, (int fd)); | |
192 | _GL_CXXALIAS_RPL (fdopendir, DIR *, (int fd)); | |
193 | # else | |
194 | # if !@HAVE_FDOPENDIR@ || !@HAVE_DECL_FDOPENDIR@ | |
195 | _GL_FUNCDECL_SYS (fdopendir, DIR *, (int fd)); | |
196 | # endif | |
197 | _GL_CXXALIAS_SYS (fdopendir, DIR *, (int fd)); | |
198 | # endif | |
199 | _GL_CXXALIASWARN (fdopendir); | |
200 | #elif defined GNULIB_POSIXCHECK | |
201 | # undef fdopendir | |
202 | # if HAVE_RAW_DECL_FDOPENDIR | |
203 | _GL_WARN_ON_USE (fdopendir, "fdopendir is unportable - " | |
204 | "use gnulib module fdopendir for portability"); | |
205 | # endif | |
206 | #endif | |
207 | ||
208 | #if @GNULIB_SCANDIR@ | |
209 | /* Scan the directory DIR, calling FILTER on each directory entry. | |
210 | Entries for which FILTER returns nonzero are individually malloc'd, | |
211 | sorted using qsort with CMP, and collected in a malloc'd array in | |
212 | *NAMELIST. Returns the number of entries selected, or -1 on error. */ | |
213 | # if !@HAVE_SCANDIR@ | |
214 | _GL_FUNCDECL_SYS (scandir, int, | |
215 | (const char *dir, struct dirent ***namelist, | |
216 | int (*filter) (const struct dirent *), | |
217 | int (*cmp) (const struct dirent **, const struct dirent **)) | |
218 | _GL_ARG_NONNULL ((1, 2, 4))); | |
219 | # endif | |
220 | /* Need to cast, because on glibc systems, the fourth parameter is | |
221 | int (*cmp) (const void *, const void *). */ | |
222 | _GL_CXXALIAS_SYS_CAST (scandir, int, | |
223 | (const char *dir, struct dirent ***namelist, | |
224 | int (*filter) (const struct dirent *), | |
225 | int (*cmp) (const struct dirent **, const struct dirent **))); | |
226 | _GL_CXXALIASWARN (scandir); | |
227 | #elif defined GNULIB_POSIXCHECK | |
228 | # undef scandir | |
229 | # if HAVE_RAW_DECL_SCANDIR | |
230 | _GL_WARN_ON_USE (scandir, "scandir is unportable - " | |
231 | "use gnulib module scandir for portability"); | |
232 | # endif | |
233 | #endif | |
234 | ||
235 | #if @GNULIB_ALPHASORT@ | |
236 | /* Compare two 'struct dirent' entries alphabetically. */ | |
237 | # if !@HAVE_ALPHASORT@ | |
238 | _GL_FUNCDECL_SYS (alphasort, int, | |
239 | (const struct dirent **, const struct dirent **) | |
240 | _GL_ATTRIBUTE_PURE | |
241 | _GL_ARG_NONNULL ((1, 2))); | |
242 | # endif | |
243 | /* Need to cast, because on glibc systems, the parameters are | |
244 | (const void *, const void *). */ | |
245 | _GL_CXXALIAS_SYS_CAST (alphasort, int, | |
246 | (const struct dirent **, const struct dirent **)); | |
247 | _GL_CXXALIASWARN (alphasort); | |
248 | #elif defined GNULIB_POSIXCHECK | |
249 | # undef alphasort | |
250 | # if HAVE_RAW_DECL_ALPHASORT | |
251 | _GL_WARN_ON_USE (alphasort, "alphasort is unportable - " | |
252 | "use gnulib module alphasort for portability"); | |
253 | # endif | |
254 | #endif | |
255 | ||
256 | ||
257 | #endif /* _@GUARD_PREFIX@_DIRENT_H */ | |
258 | #endif /* _@GUARD_PREFIX@_DIRENT_H */ |