1 /* $OpenBSD: dirent.h,v 1.13 2003/08/01 17:38:33 avsm Exp $ */ 2 /* $NetBSD: dirent.h,v 1.9 1995/03/26 20:13:37 jtc Exp $ */ 3 4 /*- 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)dirent.h 8.2 (Berkeley) 7/28/94 33 */ 34 35 #ifndef _DIRENT_H_ 36 #define _DIRENT_H_ 37 38 /* 39 * POSIX doesn't mandate this, but X/Open XPG 4.2 does. 40 */ 41 #ifndef _POSIX_SOURCE 42 #include <sys/types.h> 43 #endif 44 45 /* 46 * The kernel defines the format of directory entries returned by 47 * the getdirentries(2) system call. 48 */ 49 #include <sys/dirent.h> 50 51 #ifdef _POSIX_SOURCE 52 typedef void * DIR; 53 #else 54 55 #define d_ino d_fileno /* backward compatibility */ 56 57 /* definitions for library routines operating on directories. */ 58 #define DIRBLKSIZ 1024 59 60 /* structure describing an open directory. */ 61 typedef struct _dirdesc { 62 int dd_fd; /* file descriptor associated with directory */ 63 long dd_loc; /* offset in current buffer */ 64 long dd_size; /* amount of data returned by getdirentries */ 65 char *dd_buf; /* data buffer */ 66 int dd_len; /* size of data buffer */ 67 long dd_seek; /* magic cookie returned by getdirentries */ 68 long dd_rewind; /* magic cookie for rewinding */ 69 int dd_flags; /* flags for readdir */ 70 } DIR; 71 72 #define dirfd(dirp) ((dirp)->dd_fd) 73 74 /* flags for opendir2 */ 75 #define DTF_HIDEW 0x0001 /* hide whiteout entries */ 76 #define DTF_NODUP 0x0002 /* don't return duplicate names */ 77 #define DTF_REWIND 0x0004 /* rewind after reading union stack */ 78 #define __DTF_READALL 0x0008 /* everything has been read */ 79 80 #ifndef NULL 81 #ifdef __GNUG__ 82 #define NULL __null 83 #else 84 #define NULL 0L 85 #endif 86 #endif 87 88 #endif /* _POSIX_SOURCE */ 89 90 #ifndef _KERNEL 91 92 #include <sys/cdefs.h> 93 94 __BEGIN_DECLS 95 DIR *opendir(const char *); 96 struct dirent *readdir(DIR *); 97 void rewinddir(DIR *); 98 int closedir(DIR *); 99 #ifndef _POSIX_SOURCE 100 DIR *__opendir2(const char *, int); 101 long telldir(const DIR *); 102 void seekdir(DIR *, long); 103 int scandir(const char *, struct dirent ***, 104 int (*)(struct dirent *), int (*)(const void *, const void *)); 105 int alphasort(const void *, const void *); 106 int getdirentries(int, char *, int, long *) 107 __attribute__ ((__bounded__(__string__,2,3))); 108 #endif /* not POSIX */ 109 int readdir_r(DIR *, struct dirent *, struct dirent **); 110 __END_DECLS 111 112 #endif /* !_KERNEL */ 113 114 #endif /* !_DIRENT_H_ */ 115