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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  */
53 struct 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 
61 typedef struct DIR DIR;
62 
63 extern  DIR*             opendir(const char* dirpath);
64 extern  DIR*             fdopendir(int fd);
65 extern  struct dirent*   readdir(DIR* dirp);
66 extern  int              readdir_r(DIR*  dirp, struct dirent* entry, struct dirent** result);
67 extern  int              closedir(DIR* dirp);
68 extern  void             rewinddir(DIR* dirp);
69 extern  int              dirfd(DIR* dirp);
70 extern  int              alphasort(const struct dirent** a, const struct dirent** b);
71 extern  int              scandir(const char* dir, struct dirent*** namelist,
72                                  int(*filter)(const struct dirent*),
73                                  int(*compar)(const struct dirent**,
74                                               const struct dirent**));
75 
76 extern  int              getdents(unsigned int, struct dirent*, unsigned int);
77 
78 __END_DECLS
79 
80 #endif /* _DIRENT_H_ */
81