1/* $OpenBSD: direntry.h,v 1.8 2021/12/23 02:12:52 jsg 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 */
54struct 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 */
85struct 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
125void unix2dostime(struct timespec *tsp, u_int16_t *ddp, u_int16_t *dtp, u_int8_t *dhp);
126void dos2unixtime(u_int dd, u_int dt, u_int dh, struct timespec *tsp);
127int dos2unixfn(u_char dn[11], u_char *un, int lower);
128int unix2dosfn(u_char *un, u_char dn[11], int unlen, u_int gen);
129int unix2winfn(u_char *un, int unlen, struct winentry *wep, int cnt, int chksum);
130int winChkName(u_char *un, int unlen, struct winentry *wep, int chksum);
131int win2unixfn(struct winentry *wep, struct dirent *dp, int chksum);
132u_int8_t winChksum(u_int8_t *name);
133int winSlotCnt(u_char *un, int unlen);
134#endif /* _KERNEL */