dirent.h revision f600a6395d24f214ccb9022d807360348947e295 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28#ifndef _DIRENT_H_
29#define _DIRENT_H_
30
31#include <stdint.h>
32#include <sys/cdefs.h>
33
34__BEGIN_DECLS
35
36#ifndef DT_UNKNOWN
37#define  DT_UNKNOWN     0
38#define  DT_FIFO        1
39#define  DT_CHR         2
40#define  DT_DIR         4
41#define  DT_BLK         6
42#define  DT_REG         8
43#define  DT_LNK         10
44#define  DT_SOCK        12
45#define  DT_WHT         14
46#endif
47
48/* the following structure is really called dirent64 by the kernel
49 * headers. They also define a struct dirent, but the latter lack
50 * the d_type field which is required by some libraries (e.g. hotplug)
51 * who assume to be able to access it directly. sad...
52 */
53struct dirent {
54    uint64_t         d_ino;
55    int64_t          d_off;
56    unsigned short   d_reclen;
57    unsigned char    d_type;
58    char             d_name[256];
59};
60
61typedef struct DIR  DIR;
62
63extern  int              getdents(unsigned int, struct dirent*, unsigned int);
64extern  DIR*             opendir(const char*  dirpath);
65extern  DIR*             fdopendir(int fd);
66extern  struct dirent*   readdir(DIR*  dirp);
67extern  int              readdir_r(DIR*  dirp, struct dirent *entry, struct dirent **result);
68extern  int              closedir(DIR*  dirp);
69extern  void             rewinddir(DIR *dirp);
70extern  int              dirfd(DIR* dirp);
71extern  int              alphasort(const void *a, const void *b);
72extern  int              scandir(const char *dir, struct dirent ***namelist,
73                                 int(*filter)(const struct dirent *),
74                                 int(*compar)(const struct dirent **,
75                                              const struct dirent **));
76
77__END_DECLS
78
79#endif /* _DIRENT_H_ */
80