1 /* A GNU-like <dirent.h>.
2 Copyright (C) 2006-2009 Free Software Foundation, Inc.
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.
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.
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/>. */
20 @PRAGMA_SYSTEM_HEADER@
23 /* The include_next requires a split double-inclusion guard. */
24 #@INCLUDE_NEXT@ @NEXT_DIRENT_H@
29 /* The definition of GL_LINK_WARNING is copied here. */
36 /* Declare overridden functions. */
39 # define opendir rpl_opendir
40 extern DIR * opendir (const char *);
41 # define closedir rpl_closedir
42 extern int closedir (DIR *);
45 /* Declare other POSIX functions. */
48 # if !@HAVE_DECL_DIRFD@ && !defined dirfd
49 /* Return the file descriptor associated with the given directory stream,
50 or -1 if none exists. */
51 extern int dirfd (DIR const *dir);
53 #elif defined GNULIB_POSIXCHECK
56 (GL_LINK_WARNING ("dirfd is unportable - " \
57 "use gnulib module dirfd for portability"), \
61 #if @GNULIB_FDOPENDIR@
62 # if !@HAVE_FDOPENDIR@
63 /* Open a directory stream visiting the given directory file
64 descriptor. Return NULL and set errno if fd is not visiting a
65 directory. On success, this function consumes fd (it will be
66 implicitly closed either by this function or by a subsequent
68 extern DIR *fdopendir (int fd);
70 #elif defined GNULIB_POSIXCHECK
72 # define fdopendir(f) \
73 (GL_LINK_WARNING ("fdopendir is unportable - " \
74 "use gnulib module fdopendir for portability"), \
79 /* Scan the directory DIR, calling FILTER on each directory entry.
80 Entries for which FILTER returns nonzero are individually malloc'd,
81 sorted using qsort with CMP, and collected in a malloc'd array in
82 *NAMELIST. Returns the number of entries selected, or -1 on error. */
84 extern int scandir (const char *dir, struct dirent ***namelist,
85 int (*filter) (const struct dirent *),
86 int (*cmp) (const struct dirent **, const struct dirent **));
88 #elif defined GNULIB_POSIXCHECK
90 # define scandir(d,n,f,c) \
91 (GL_LINK_WARNING ("scandir is unportable - " \
92 "use gnulib module scandir for portability"), \
96 #if @GNULIB_ALPHASORT@
97 /* Compare two 'struct dirent' entries alphabetically. */
98 # if !@HAVE_ALPHASORT@
99 extern int alphasort (const struct dirent **, const struct dirent **);
101 #elif defined GNULIB_POSIXCHECK
103 # define alphasort(a,b) \
104 (GL_LINK_WARNING ("alphasort is unportable - " \
105 "use gnulib module alphasort for portability"), \
114 #endif /* _GL_DIRENT_H */
115 #endif /* _GL_DIRENT_H */