00001 /*- 00002 * Copyright (c) 1989, 1993 00003 * The Regents of the University of California. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 4. Neither the name of the University nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * @(#)dirent.h 8.3 (Berkeley) 8/10/94 00030 * $FreeBSD: src/sys/sys/dirent.h,v 1.14 2004/04/07 04:19:49 imp Exp $ 00031 */ 00032 00033 #ifndef _SYS_DIRENT_H_ 00034 #define _SYS_DIRENT_H_ 00035 00036 #include <sys/cdefs.h> 00037 #include <sys/_types.h> 00038 #include <stddef.h> 00039 00040 /* 00041 * The dirent structure defines the format of directory entries returned by 00042 * the getdirentries(2) system call. 00043 * 00044 * A directory entry has a struct dirent at the front of it, containing its 00045 * inode number, the length of the entry, and the length of the name 00046 * contained in the entry. These are followed by the name padded to a 4 00047 * byte boundary with null bytes. All names are guaranteed null terminated. 00048 * The maximum length of a name in a directory is MAXNAMLEN. 00049 */ 00050 00051 struct dirent { 00052 __uint32_t d_fileno; /* file number of entry */ 00053 __uint16_t d_reclen; /* length of this record */ 00054 __uint8_t d_type; /* file type, see below */ 00055 __uint8_t d_namlen; /* length of string in d_name */ 00056 #if __BSD_VISIBLE 00057 #define MAXNAMLEN 255 00058 char d_name[MAXNAMLEN + 1]; /* name must be no longer than this */ 00059 #else 00060 char d_name[255 + 1]; /* name must be no longer than this */ 00061 #endif 00062 }; 00063 00064 #ifdef __SYMBIAN32__ 00065 struct wdirent { 00066 unsigned long d_fileno; 00067 unsigned short d_namlen; 00068 wchar_t* d_name; 00069 }; 00070 00071 typedef struct __EPOC32_WDIR WDIR; 00072 #endif 00073 00074 00075 #if __BSD_VISIBLE 00076 /* 00077 * File types 00078 */ 00079 #define DT_UNKNOWN 0 00080 #define DT_FIFO 1 00081 #define DT_CHR 2 00082 #define DT_DIR 4 00083 #define DT_BLK 6 00084 #define DT_REG 8 00085 #define DT_LNK 10 00086 #define DT_SOCK 12 00087 #define DT_WHT 14 00088 00089 /* 00090 * Convert between stat structure types and directory types. 00091 */ 00092 #define IFTODT(mode) (((mode) & 0170000) >> 12) 00093 #define DTTOIF(dirtype) ((dirtype) << 12) 00094 00095 /* 00096 * The _GENERIC_DIRSIZ macro gives the minimum record length which will hold 00097 * the directory entry. This requires the amount of space in struct direct 00098 * without the d_name field, plus enough space for the name with a terminating 00099 * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary. 00100 * 00101 * XXX although this macro is in the implementation namespace, it requires 00102 * a manifest constant that is not. 00103 */ 00104 #define _GENERIC_DIRSIZ(dp) \ 00105 ((sizeof (struct dirent) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3)) 00106 #endif /* __BSD_VISIBLE */ 00107 00108 #ifdef _KERNEL 00109 #define GENERIC_DIRSIZ(dp) _GENERIC_DIRSIZ(dp) 00110 #endif 00111 00112 #endif /* !_SYS_DIRENT_H_ */