1 /* $NetBSD: dirent.h,v 1.13 1997/10/10 13:18:37 fvdl 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 #include <sys/types.h> 42 43 /* 44 * The kernel defines the format of directory entries returned by 45 * the getdirentries(2) system call. 46 */ 47 #include <sys/dirent.h> 48 49 #ifdef _POSIX_SOURCE 50 typedef void * DIR; 51 #else 52 53 #define d_ino d_fileno /* backward compatibility */ 54 55 /* definitions for library routines operating on directories. */ 56 #define DIRBLKSIZ 1024 57 58 /* structure describing an open directory. */ 59 typedef struct _dirdesc { 60 int dd_fd; /* file descriptor associated with directory */ 61 long dd_loc; /* offset in current buffer */ 62 long dd_size; /* amount of data returned by getdents */ 63 char *dd_buf; /* data buffer */ 64 int dd_len; /* size of data buffer */ 65 off_t dd_seek; /* magic cookie returned by getdents */ 66 long dd_rewind; /* magic cookie for rewinding */ 67 int dd_flags; /* flags for readdir */ 68 } DIR; 69 70 #define dirfd(dirp) ((dirp)->dd_fd) 71 72 /* flags for opendir2 */ 73 #define DTF_HIDEW 0x0001 /* hide whiteout entries */ 74 #define DTF_NODUP 0x0002 /* don't return duplicate names */ 75 #define DTF_REWIND 0x0004 /* rewind after reading union stack */ 76 #define __DTF_READALL 0x0008 /* everything has been read */ 77 78 #ifndef NULL 79 #define NULL 0 80 #endif 81 82 #endif /* _POSIX_SOURCE */ 83 84 #ifndef _KERNEL 85 86 #include <sys/cdefs.h> 87 88 __BEGIN_DECLS 89 DIR *opendir __P((const char *)); 90 struct dirent *readdir __P((DIR *)); 91 void rewinddir __P((DIR *)); 92 int closedir __P((DIR *)); 93 #ifndef _POSIX_SOURCE 94 DIR *__opendir2 __P((const char *, int)); 95 long telldir __P((const DIR *)); 96 void __seekdir __P((DIR *, long)); 97 void seekdir __P((DIR *, long)); 98 int scandir __P((const char *, struct dirent ***, 99 int (*)(struct dirent *), int (*)(const void *, const void *))); 100 int alphasort __P((const void *, const void *)); 101 int getdirentries __P((int, char *, int, long *)); 102 int getdents __P((int, char *, size_t)); 103 #endif /* not POSIX */ 104 __END_DECLS 105 106 #endif /* !_KERNEL */ 107 108 #endif /* !_DIRENT_H_ */ 109