1 /* $NetBSD: dirent.h,v 1.21 2003/08/07 09:44:10 agc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)dirent.h 8.2 (Berkeley) 7/28/94 32 */ 33 34 #ifndef _DIRENT_H_ 35 #define _DIRENT_H_ 36 37 #include <sys/featuretest.h> 38 #include <sys/types.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 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 47 #define d_ino d_fileno /* backward compatibility */ 48 #endif 49 50 typedef struct _dirdesc DIR; 51 52 #if defined(_NETBSD_SOURCE) 53 54 /* definitions for library routines operating on directories. */ 55 #define DIRBLKSIZ 1024 56 57 /* structure describing an open directory. */ 58 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 getdents */ 62 char *dd_buf; /* data buffer */ 63 int dd_len; /* size of data buffer */ 64 off_t dd_seek; /* magic cookie returned by getdents */ 65 long dd_rewind; /* magic cookie for rewinding */ 66 int dd_flags; /* flags for readdir */ 67 void *dd_lock; /* lock for concurrent access */ 68 }; 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 #include <sys/null.h> 79 80 #endif 81 82 #ifndef _KERNEL 83 84 #include <sys/cdefs.h> 85 86 __BEGIN_DECLS 87 int closedir __P((DIR *)); 88 DIR *opendir __P((const char *)); 89 struct dirent *readdir __P((DIR *)); 90 int readdir_r __P((DIR *, struct dirent * __restrict, 91 struct dirent ** __restrict)); 92 void rewinddir __P((DIR *)); 93 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 94 void seekdir __P((DIR *, long)); 95 long telldir __P((const DIR *)); 96 #endif /* defined(_NETBSD_SOURCE) || defined(_XOPEN_SOURCE) */ 97 #if defined(_NETBSD_SOURCE) 98 DIR *__opendir2 __P((const char *, int)); 99 void __seekdir __P((DIR *, long)); 100 int scandir __P((const char *, struct dirent ***, 101 int (*)(const struct dirent *), int (*)(const void *, const void *))); 102 int alphasort __P((const void *, const void *)); 103 int getdirentries __P((int, char *, int, long *)); 104 int getdents __P((int, char *, size_t)); 105 #endif /* defined(_NETBSD_SOURCE) */ 106 __END_DECLS 107 108 #endif /* !_KERNEL */ 109 110 #endif /* !_DIRENT_H_ */ 111