1 /*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)dirent.h 8.2 (Berkeley) 7/28/94 34 * $FreeBSD: src/include/dirent.h,v 1.7 1999/12/29 05:01:20 peter Exp $ 35 * $DragonFly: src/include/dirent.h,v 1.10 2008/06/05 17:53:10 swildner Exp $ 36 */ 37 38 #ifndef _DIRENT_H_ 39 #define _DIRENT_H_ 40 41 /* 42 * The kernel defines the format of directory entries returned by 43 * the getdirentries(2) system call. 44 */ 45 #include <sys/dirent.h> 46 47 #ifdef _POSIX_SOURCE 48 typedef void * DIR; 49 #else 50 51 /* definitions for library routines operating on directories. */ 52 #define DIRBLKSIZ 1024 53 54 /* structure describing an open directory. */ 55 typedef struct _dirdesc { 56 int dd_fd; /* file descriptor associated with directory */ 57 long dd_loc; /* offset in current buffer */ 58 long dd_size; /* amount of data returned by getdirentries */ 59 char *dd_buf; /* data buffer */ 60 int dd_len; /* size of data buffer */ 61 long dd_lastseek; /* last seek index */ 62 long dd_rewind; /* magic cookie for rewinding */ 63 int dd_flags; /* flags for readdir */ 64 void *dd_lock; /* hack to avoid include <pthread.h> */ 65 off_t dd_seek; /* new magic cookie returned by getdirentries */ 66 } DIR; 67 68 #define dirfd(dirp) ((dirp)->dd_fd) 69 70 /* flags for opendir2 */ 71 #define DTF_HIDEW 0x0001 /* hide whiteout entries */ 72 #define DTF_NODUP 0x0002 /* don't return duplicate names */ 73 #define DTF_REWIND 0x0004 /* rewind after reading union stack */ 74 #define __DTF_READALL 0x0008 /* everything has been read */ 75 #define __DTF_SKIPME 0x0010 /* next entry to read not current entry */ 76 77 #include <sys/_null.h> 78 79 #endif /* _POSIX_SOURCE */ 80 81 #ifndef _KERNEL 82 83 #include <sys/cdefs.h> 84 85 __BEGIN_DECLS 86 DIR *opendir (const char *); 87 struct dirent *readdir (DIR *); 88 void rewinddir (DIR *); 89 int closedir (DIR *); 90 #ifndef _POSIX_SOURCE 91 DIR *__opendir2 (const char *, int); 92 long telldir (const DIR *); 93 struct dirent *_readdir_unlocked(DIR *, int); 94 void seekdir(DIR *, long); 95 void _reclaim_telldir(DIR *); 96 void _seekdir (DIR *, long); 97 int scandir (const char *, struct dirent ***, 98 int (*)(struct dirent *), int (*)(const void *, const void *)); 99 int alphasort (const void *, const void *); 100 int getdents (int, char *, int); 101 int getdirentries (int, char *, int, long *); 102 int readdir_r (DIR *, struct dirent *, struct dirent **); 103 #endif /* not POSIX */ 104 __END_DECLS 105 106 #endif /* !_KERNEL */ 107 108 #endif /* !_DIRENT_H_ */ 109