1/*	$OpenBSD: direntry.h,v 1.3 2023/08/11 04:51:36 guenther 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
124void	unix2dostime(const struct timespec *tsp, int minuteswest,
125	    u_int16_t *ddp, u_int16_t *dtp, u_int8_t *dhp);
126int	unix2dosfn(u_char *un, u_char dn[11], int unlen, u_int gen);
127int	unix2winfn(u_char *un, int unlen, struct winentry *wep, int cnt,
128	    int chksum);
129int	winChkName(u_char *un, int unlen, struct winentry *wep, int chksum);
130u_int8_t winChksum(u_int8_t *name);
131int	winSlotCnt(u_char *un, int unlen);
132