Annotation of sys/msdosfs/direntry.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: direntry.h,v 1.6 2002/03/14 01:27:09 millert Exp $ */
2: /* $NetBSD: direntry.h,v 1.13 1997/10/17 11:23:45 ws Exp $ */
3:
4: /*-
5: * Copyright (C) 1994, 1995, 1997 Wolfgang Solfrank.
6: * Copyright (C) 1994, 1995, 1997 TooLs GmbH.
7: * All rights reserved.
8: * Original code by Paul Popelka (paulp@uts.amdahl.com) (see below).
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by TooLs GmbH.
21: * 4. The name of TooLs GmbH may not be used to endorse or promote products
22: * derived from this software without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
25: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27: * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
29: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
30: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34: */
35: /*
36: * Written by Paul Popelka (paulp@uts.amdahl.com)
37: *
38: * You can do anything you want with this software, just don't say you wrote
39: * it, and don't remove this notice.
40: *
41: * This software is provided "as is".
42: *
43: * The author supplies this software to be publicly redistributed on the
44: * understanding that the author is not responsible for the correct
45: * functioning of this software in any circumstances and is not liable for
46: * any damages caused by this software.
47: *
48: * October 1992
49: */
50:
51: /*
52: * Structure of a dos directory entry.
53: */
54: struct direntry {
55: u_int8_t deName[8]; /* filename, blank filled */
56: #define SLOT_EMPTY 0x00 /* slot has never been used */
57: #define SLOT_E5 0x05 /* the real value is 0xe5 */
58: #define SLOT_DELETED 0xe5 /* file in this slot deleted */
59: u_int8_t deExtension[3]; /* extension, blank filled */
60: u_int8_t deAttributes; /* file attributes */
61: #define ATTR_NORMAL 0x00 /* normal file */
62: #define ATTR_READONLY 0x01 /* file is readonly */
63: #define ATTR_HIDDEN 0x02 /* file is hidden */
64: #define ATTR_SYSTEM 0x04 /* file is a system file */
65: #define ATTR_VOLUME 0x08 /* entry is a volume label */
66: #define ATTR_DIRECTORY 0x10 /* entry is a directory name */
67: #define ATTR_ARCHIVE 0x20 /* file is new or modified */
68: u_int8_t deLowerCase; /* case for base and extension */
69: #define CASE_LOWER_BASE 0x08 /* base is lower case */
70: #define CASE_LOWER_EXT 0x10 /* extension is lower case */
71: u_int8_t deCTimeHundredth; /* create time, 1/100th of a sec */
72: u_int8_t deCTime[2]; /* create time */
73: u_int8_t deCDate[2]; /* create date */
74: u_int8_t deADate[2]; /* access date */
75: u_int8_t deHighClust[2]; /* high byte of cluster number */
76: u_int8_t deMTime[2]; /* last update time */
77: u_int8_t deMDate[2]; /* last update date */
78: u_int8_t deStartCluster[2]; /* starting cluster of file */
79: u_int8_t deFileSize[4]; /* size of file in bytes */
80: };
81:
82: /*
83: * Structure of a Win95 long name directory entry
84: */
85: struct winentry {
86: u_int8_t weCnt;
87: #define WIN_LAST 0x40
88: #define WIN_CNT 0x3f
89: u_int8_t wePart1[10];
90: u_int8_t weAttributes;
91: #define ATTR_WIN95 0x0f
92: u_int8_t weReserved1;
93: u_int8_t weChksum;
94: u_int8_t wePart2[12];
95: u_int16_t weReserved2;
96: u_int8_t wePart3[4];
97: };
98: #define WIN_CHARS 13 /* Number of chars per winentry */
99:
100: /*
101: * This is the format of the contents of the deTime field in the direntry
102: * structure.
103: * We don't use bitfields because we don't know how compilers for
104: * arbitrary machines will lay them out.
105: */
106: #define DT_2SECONDS_MASK 0x1F /* seconds divided by 2 */
107: #define DT_2SECONDS_SHIFT 0
108: #define DT_MINUTES_MASK 0x7E0 /* minutes */
109: #define DT_MINUTES_SHIFT 5
110: #define DT_HOURS_MASK 0xF800 /* hours */
111: #define DT_HOURS_SHIFT 11
112:
113: /*
114: * This is the format of the contents of the deDate field in the direntry
115: * structure.
116: */
117: #define DD_DAY_MASK 0x1F /* day of month */
118: #define DD_DAY_SHIFT 0
119: #define DD_MONTH_MASK 0x1E0 /* month */
120: #define DD_MONTH_SHIFT 5
121: #define DD_YEAR_MASK 0xFE00 /* year - 1980 */
122: #define DD_YEAR_SHIFT 9
123:
124: #ifdef _KERNEL
125: void unix2dostime(struct timespec *tsp, u_int16_t *ddp, u_int16_t *dtp, u_int8_t *dhp);
126: void dos2unixtime(u_int dd, u_int dt, u_int dh, struct timespec *tsp);
127: int dos2unixfn(u_char dn[11], u_char *un, int lower);
128: int unix2dosfn(u_char *un, u_char dn[12], int unlen, u_int gen);
129: int unix2winfn(u_char *un, int unlen, struct winentry *wep, int cnt, int chksum);
130: int winChkName(u_char *un, int unlen, struct winentry *wep, int chksum);
131: int win2unixfn(struct winentry *wep, struct dirent *dp, int chksum);
132: u_int8_t winChksum(u_int8_t *name);
133: int winSlotCnt(u_char *un, int unlen);
134: #endif /* _KERNEL */
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