direntry.h revision 1.5
1 /* $NetBSD: direntry.h,v 1.5 2005/12/03 17:34:43 christos Exp $ */ 2 3 /*- 4 * Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank. 5 * Copyright (C) 1994, 1995, 1997 TooLs GmbH. 6 * All rights reserved. 7 * Original code by Paul Popelka (paulp (at) uts.amdahl.com) (see below). 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by TooLs GmbH. 20 * 4. The name of TooLs GmbH may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 /* 35 * Written by Paul Popelka (paulp (at) uts.amdahl.com) 36 * 37 * You can do anything you want with this software, just don't say you wrote 38 * it, and don't remove this notice. 39 * 40 * This software is provided "as is". 41 * 42 * The author supplies this software to be publicly redistributed on the 43 * understanding that the author is not responsible for the correct 44 * functioning of this software in any circumstances and is not liable for 45 * any damages caused by this software. 46 * 47 * October 1992 48 */ 49 #ifndef _MSDOSFS_DIRENTRY_H_ 50 #define _MSDOSFS_DIRENTRY_H_ 51 52 /* 53 * Structure of a dos directory entry. 54 */ 55 struct direntry { 56 u_int8_t deName[8]; /* filename, blank filled */ 57 #define SLOT_EMPTY 0x00 /* slot has never been used */ 58 #define SLOT_E5 0x05 /* the real value is 0xe5 */ 59 #define SLOT_DELETED 0xe5 /* file in this slot deleted */ 60 u_int8_t deExtension[3]; /* extension, blank filled */ 61 u_int8_t deAttributes; /* file attributes */ 62 #define ATTR_NORMAL 0x00 /* normal file */ 63 #define ATTR_READONLY 0x01 /* file is readonly */ 64 #define ATTR_HIDDEN 0x02 /* file is hidden */ 65 #define ATTR_SYSTEM 0x04 /* file is a system file */ 66 #define ATTR_VOLUME 0x08 /* entry is a volume label */ 67 #define ATTR_DIRECTORY 0x10 /* entry is a directory name */ 68 #define ATTR_ARCHIVE 0x20 /* file is new or modified */ 69 u_int8_t deReserved; /* reserved */ 70 u_int8_t deCHundredth; /* hundredth of seconds in CTime */ 71 u_int8_t deCTime[2]; /* create time */ 72 u_int8_t deCDate[2]; /* create date */ 73 u_int8_t deADate[2]; /* access date */ 74 u_int8_t deHighClust[2]; /* high bytes of cluster number */ 75 u_int8_t deMTime[2]; /* last update time */ 76 u_int8_t deMDate[2]; /* last update date */ 77 u_int8_t deStartCluster[2]; /* starting cluster of file */ 78 u_int8_t deFileSize[4]; /* size of file in bytes */ 79 }; 80 81 /* 82 * Structure of a Win95 long name directory entry 83 */ 84 struct winentry { 85 u_int8_t weCnt; 86 #define WIN_LAST 0x40 87 #define WIN_CNT 0x3f 88 u_int8_t wePart1[10]; 89 u_int8_t weAttributes; 90 #define ATTR_WIN95 0x0f 91 u_int8_t weReserved1; 92 u_int8_t weChksum; 93 u_int8_t wePart2[12]; 94 u_int16_t weReserved2; 95 u_int8_t wePart3[4]; 96 }; 97 #define WIN_CHARS 13 /* Number of chars per winentry */ 98 99 /* 100 * This is the format of the contents of the deTime field in the direntry 101 * structure. 102 * We don't use bitfields because we don't know how compilers for 103 * arbitrary machines will lay them out. 104 */ 105 #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */ 106 #define DT_2SECONDS_SHIFT 0 107 #define DT_MINUTES_MASK 0x7E0 /* minutes */ 108 #define DT_MINUTES_SHIFT 5 109 #define DT_HOURS_MASK 0xF800 /* hours */ 110 #define DT_HOURS_SHIFT 11 111 112 /* 113 * This is the format of the contents of the deDate field in the direntry 114 * structure. 115 */ 116 #define DD_DAY_MASK 0x1F /* day of month */ 117 #define DD_DAY_SHIFT 0 118 #define DD_MONTH_MASK 0x1E0 /* month */ 119 #define DD_MONTH_SHIFT 5 120 #define DD_YEAR_MASK 0xFE00 /* year - 1980 */ 121 #define DD_YEAR_SHIFT 9 122 123 #ifdef _KERNEL 124 void unix2dostime(const struct timespec *tsp, int gmtoff, u_int16_t *ddp, 125 u_int16_t *dtp, u_int8_t *dhp); 126 void dos2unixtime(u_int dd, u_int dt, u_int dh, int gmtoff, 127 struct timespec *tsp); 128 int dos2unixfn(u_char dn[11], u_char *un, int lower); 129 int unix2dosfn(const u_char *un, u_char dn[12], int unlen, 130 u_int gen); 131 int unix2winfn(const u_char *un, int unlen, struct winentry *wep, 132 int cnt, int chksum); 133 int winChkName(const u_char *un, int unlen, struct winentry *wep, 134 int chksum); 135 int win2unixfn(struct winentry *wep, struct dirent *dp, int chksum); 136 u_int8_t winChksum(u_int8_t *name); 137 int winSlotCnt(const u_char *un, int unlen); 138 #endif /* _KERNEL */ 139 #endif /* _MSDOSFS_DIRENTRY_H_ */ 140
Indexes created Sat Sep 27 14:09:57 GMT 2025