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 */ 35 36 #ifndef _DIRENT_H_ 37 #define _DIRENT_H_ 38 39 /* 40 * The kernel defines the format of directory entries returned by 41 * the getdirentries(2) system call. 42 */ 43 #include <sys/dirent.h> 44 45 #ifdef _POSIX_SOURCE 46 typedef void * DIR; 47 #else 48 49 #define d_ino d_fileno /* backward compatibility */ 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_seek; /* magic cookie returned by getdirentries */ 62 long dd_rewind; /* magic cookie for rewinding */ 63 int dd_flags; /* flags for readdir */ 64 } DIR; 65 66 #define dirfd(dirp) ((dirp)->dd_fd) 67 68 /* flags for opendir2 */ 69 #define DTF_HIDEW 0x0001 /* hide whiteout entries */ 70 #define DTF_NODUP 0x0002 /* don't return duplicate names */ 71 #define DTF_REWIND 0x0004 /* rewind after reading union stack */ 72 #define __DTF_READALL 0x0008 /* everything has been read */ 73 74 #ifndef NULL 75 #define NULL 0 76 #endif 77 78 #endif /* _POSIX_SOURCE */ 79 80 #ifndef KERNEL 81 82 #include <sys/cdefs.h> 83 84 __BEGIN_DECLS 85 DIR *opendir __P((const char *)); 86 struct dirent *readdir __P((DIR *)); 87 void rewinddir __P((DIR *)); 88 int closedir __P((DIR *)); 89 #ifndef _POSIX_SOURCE 90 DIR *__opendir2 __P((const char *, int)); 91 long telldir __P((const DIR *)); 92 void seekdir __P((DIR *, long)); 93 int scandir __P((const char *, struct dirent ***, 94 int (*)(struct dirent *), int (*)(const void *, const void *))); 95 int alphasort __P((const void *, const void *)); 96 int getdirentries __P((int, char *, int, long *)); 97 #endif /* not POSIX */ 98 __END_DECLS 99 100 #endif /* !KERNEL */ 101 102 #endif /* !_DIRENT_H_ */ 103