1 /* $NetBSD: direntry.h,v 1.2 2003/09/07 22:09:11 itojun 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@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
122 void unix2dostime __P((struct timespec *tsp, int gmtoff, u_int16_t *ddp,
123 u_int16_t *dtp, u_int8_t *dhp));
124 void dos2unixtime __P((u_int dd, u_int dt, u_int dh, int gmtoff,
125 struct timespec *tsp));
126 int dos2unixfn __P((u_char dn[11], u_char *un, int lower));
127 int unix2dosfn __P((const u_char *un, u_char dn[12], int unlen,
128 u_int gen));
129 int unix2winfn __P((const u_char *un, int unlen, struct winentry *wep,
130 int cnt, int chksum));
131 int winChkName __P((const u_char *un, int unlen, struct winentry *wep,
132 int chksum));
133 int win2unixfn __P((struct winentry *wep, struct dirent *dp, int chksum));
134 u_int8_t winChksum __P((u_int8_t *name));
135 int winSlotCnt __P((const u_char *un, int unlen));
136 #endif /* _KERNEL */
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