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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  int              getdents(unsigned int, struct dirent*, unsigned int);
     64 extern  DIR*             opendir(const char*  dirpath);
     65 extern  DIR*             fdopendir(int fd);
     66 extern  struct dirent*   readdir(DIR*  dirp);
     67 extern  int              readdir_r(DIR*  dirp, struct dirent *entry, struct dirent **result);
     68 extern  int              closedir(DIR*  dirp);
     69 extern  void             rewinddir(DIR *dirp);
     70 extern  int              dirfd(DIR* dirp);
     71 extern  int              alphasort(const void *a, const void *b);
     72 extern  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