Annotation of src/sys/fs/msdosfs/direntry.h, Revision 1.3
1.3 ! xtraeme 1: /* $NetBSD: direntry.h,v 1.2 2003/09/07 22:09:11 itojun Exp $ */
1.1 jdolecek 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@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@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:
50: /*
51: * Structure of a dos directory entry.
52: */
53: struct direntry {
54: u_int8_t deName[8]; /* filename, blank filled */
55: #define SLOT_EMPTY 0x00 /* slot has never been used */
56: #define SLOT_E5 0x05 /* the real value is 0xe5 */
57: #define SLOT_DELETED 0xe5 /* file in this slot deleted */
58: u_int8_t deExtension[3]; /* extension, blank filled */
59: u_int8_t deAttributes; /* file attributes */
60: #define ATTR_NORMAL 0x00 /* normal file */
61: #define ATTR_READONLY 0x01 /* file is readonly */
62: #define ATTR_HIDDEN 0x02 /* file is hidden */
63: #define ATTR_SYSTEM 0x04 /* file is a system file */
64: #define ATTR_VOLUME 0x08 /* entry is a volume label */
65: #define ATTR_DIRECTORY 0x10 /* entry is a directory name */
66: #define ATTR_ARCHIVE 0x20 /* file is new or modified */
67: u_int8_t deReserved; /* reserved */
68: u_int8_t deCHundredth; /* hundredth of seconds in CTime */
69: u_int8_t deCTime[2]; /* create time */
70: u_int8_t deCDate[2]; /* create date */
71: u_int8_t deADate[2]; /* access date */
72: u_int8_t deHighClust[2]; /* high bytes of cluster number */
73: u_int8_t deMTime[2]; /* last update time */
74: u_int8_t deMDate[2]; /* last update date */
75: u_int8_t deStartCluster[2]; /* starting cluster of file */
76: u_int8_t deFileSize[4]; /* size of file in bytes */
77: };
78:
79: /*
80: * Structure of a Win95 long name directory entry
81: */
82: struct winentry {
83: u_int8_t weCnt;
84: #define WIN_LAST 0x40
85: #define WIN_CNT 0x3f
86: u_int8_t wePart1[10];
87: u_int8_t weAttributes;
88: #define ATTR_WIN95 0x0f
89: u_int8_t weReserved1;
90: u_int8_t weChksum;
91: u_int8_t wePart2[12];
92: u_int16_t weReserved2;
93: u_int8_t wePart3[4];
94: };
95: #define WIN_CHARS 13 /* Number of chars per winentry */
96:
97: /*
98: * This is the format of the contents of the deTime field in the direntry
99: * structure.
100: * We don't use bitfields because we don't know how compilers for
101: * arbitrary machines will lay them out.
102: */
103: #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */
104: #define DT_2SECONDS_SHIFT 0
105: #define DT_MINUTES_MASK 0x7E0 /* minutes */
106: #define DT_MINUTES_SHIFT 5
107: #define DT_HOURS_MASK 0xF800 /* hours */
108: #define DT_HOURS_SHIFT 11
109:
110: /*
111: * This is the format of the contents of the deDate field in the direntry
112: * structure.
113: */
114: #define DD_DAY_MASK 0x1F /* day of month */
115: #define DD_DAY_SHIFT 0
116: #define DD_MONTH_MASK 0x1E0 /* month */
117: #define DD_MONTH_SHIFT 5
118: #define DD_YEAR_MASK 0xFE00 /* year - 1980 */
119: #define DD_YEAR_SHIFT 9
120:
121: #ifdef _KERNEL
1.3 ! xtraeme 122: void unix2dostime(struct timespec *tsp, int gmtoff, u_int16_t *ddp,
! 123: u_int16_t *dtp, u_int8_t *dhp);
! 124: void dos2unixtime(u_int dd, u_int dt, u_int dh, int gmtoff,
! 125: struct timespec *tsp);
! 126: int dos2unixfn(u_char dn[11], u_char *un, int lower);
! 127: int unix2dosfn(const u_char *un, u_char dn[12], int unlen,
! 128: u_int gen);
! 129: int unix2winfn(const u_char *un, int unlen, struct winentry *wep,
! 130: int cnt, int chksum);
! 131: int winChkName(const u_char *un, int unlen, struct winentry *wep,
! 132: int chksum);
! 133: int win2unixfn(struct winentry *wep, struct dirent *dp, int chksum);
! 134: u_int8_t winChksum(u_int8_t *name);
! 135: int winSlotCnt(const u_char *un, int unlen);
1.1 jdolecek 136: #endif /* _KERNEL */
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