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 * $FreeBSD$ 35 */ 36 37 #ifndef _DIRENT_H_ 38 #define _DIRENT_H_ 39 40 /* 41 * The kernel defines the format of directory entries returned by 42 * the getdirentries(2) system call. 43 */ 44 #include <sys/dirent.h> 45 46 #ifdef _POSIX_SOURCE 47 typedef void * DIR; 48 #else 49 50 #define d_ino d_fileno /* backward compatibility */ 51 52 /* definitions for library routines operating on directories. */ 53 #define DIRBLKSIZ 1024 54 55 struct _telldir; /* see telldir.h */ 56 57 /* structure describing an open directory. */ 58 typedef struct _dirdesc { 59 int dd_fd; /* file descriptor associated with directory */ 60 long dd_loc; /* offset in current buffer */ 61 long dd_size; /* amount of data returned by getdirentries */ 62 char *dd_buf; /* data buffer */ 63 int dd_len; /* size of data buffer */ 64 long dd_seek; /* magic cookie returned by getdirentries */ 65 long dd_rewind; /* magic cookie for rewinding */ 66 int dd_flags; /* flags for readdir */ 67 void *dd_lock; /* hack to avoid including <pthread.h> */ 68 struct _telldir *dd_td; /* telldir position recording */ 69 } DIR; 70 71 #define dirfd(dirp) ((dirp)->dd_fd) 72 73 /* flags for opendir2 */ 74 #define DTF_HIDEW 0x0001 /* hide whiteout entries */ 75 #define DTF_NODUP 0x0002 /* don't return duplicate names */ 76 #define DTF_REWIND 0x0004 /* rewind after reading union stack */ 77 #define __DTF_READALL 0x0008 /* everything has been read */ 78 79 #ifndef NULL 80 #define NULL 0 81 #endif 82 83 #endif /* _POSIX_SOURCE */ 84 85 #ifndef _KERNEL 86 87 #include <sys/cdefs.h> 88 89 __BEGIN_DECLS 90 DIR *opendir(const char *); 91 struct dirent * 92 readdir(DIR *); 93 void rewinddir(DIR *); 94 int closedir(DIR *); 95 #ifndef _POSIX_SOURCE 96 DIR *__opendir2(const char *, int); 97 long telldir(DIR *); 98 void seekdir(DIR *, long); 99 int scandir(const char *, struct dirent ***, 100 int (*)(struct dirent *), int (*)(const void *, const void *)); 101 int alphasort(const void *, const void *); 102 int getdents(int, char *, int); 103 int getdirentries(int, char *, int, long *); 104 int readdir_r(DIR *, struct dirent *, struct dirent **); 105 #endif /* not POSIX */ 106 __END_DECLS 107 108 #endif /* !_KERNEL */ 109 110 #endif /* !_DIRENT_H_ */ 111