1 /* $NetBSD: dirent.h,v 1.8 1994/12/28 02:43:00 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)dirent.h 8.2 (Berkeley) 7/28/94 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 #define d_ino d_fileno /* backward compatibility */ 52 53 /* definitions for library routines operating on directories. */ 54 #define DIRBLKSIZ 1024 55 56 /* structure describing an open directory. */ 57 typedef struct _dirdesc { 58 int dd_fd; /* file descriptor associated with directory */ 59 long dd_loc; /* offset in current buffer */ 60 long dd_size; /* amount of data returned by getdirentries */ 61 char *dd_buf; /* data buffer */ 62 int dd_len; /* size of data buffer */ 63 long dd_seek; /* magic cookie returned by getdirentries */ 64 long dd_rewind; /* magic cookie for rewinding */ 65 int dd_flags; /* flags for readdir */ 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 76 #ifndef NULL 77 #define NULL 0 78 #endif 79 80 #endif /* _POSIX_SOURCE */ 81 82 #ifndef KERNEL 83 84 #include <sys/cdefs.h> 85 86 __BEGIN_DECLS 87 DIR *opendir __P((const char *)); 88 struct dirent *readdir __P((DIR *)); 89 void rewinddir __P((DIR *)); 90 int closedir __P((DIR *)); 91 #ifndef _POSIX_SOURCE 92 DIR *__opendir2 __P((const char *, int)); 93 long telldir __P((const DIR *)); 94 void seekdir __P((DIR *, long)); 95 int scandir __P((const char *, struct dirent ***, 96 int (*)(struct dirent *), int (*)(const void *, const void *))); 97 int alphasort __P((const void *, const void *)); 98 int getdirentries __P((int, char *, int, long *)); 99 #endif /* not POSIX */ 100 __END_DECLS 101 102 #endif /* !KERNEL */ 103 104 #endif /* !_DIRENT_H_ */ 105