1#ifndef MTOOLS_VFAT_H
2#define MTOOLS_VFAT_H
3
4/*  Copyright 1995 David C. Niemi
5 *  Copyright 1996-1998,2000-2003,2005,2007-2009 Alain Knaff.
6 *  This file is part of mtools.
7 *
8 *  Mtools is free software: you can redistribute it and/or modify
9 *  it under the terms of the GNU General Public License as published by
10 *  the Free Software Foundation, either version 3 of the License, or
11 *  (at your option) any later version.
12 *
13 *  Mtools is distributed in the hope that it will be useful,
14 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *  GNU General Public License for more details.
17 *
18 *  You should have received a copy of the GNU General Public License
19 *  along with Mtools.  If not, see <http://www.gnu.org/licenses/>.
20 */
21
22#include "msdos.h"
23
24/*
25 * VFAT-related common header file
26 */
27#define VFAT_SUPPORT
28
29struct unicode_char {
30	unsigned char lchar;
31	unsigned char uchar;
32} PACKED;
33
34
35/* #define MAX_VFAT_SUBENTRIES 32 */ /* Theoretical max # of VSEs */
36#define MAX_VFAT_SUBENTRIES 20		/* Max useful # of VSEs */
37#define VSE_NAMELEN 13
38
39#define VSE1SIZE 5
40#define VSE2SIZE 6
41#define VSE3SIZE 2
42
43#include "stream.h"
44
45struct vfat_subentry {
46	unsigned char id;		/* 0x40 = last; & 0x1f = VSE ID */
47	struct unicode_char text1[VSE1SIZE];
48	unsigned char attribute;	/* 0x0f for VFAT */
49	unsigned char hash1;		/* Always 0? */
50	unsigned char sum;		/* Checksum of short name */
51	struct unicode_char text2[VSE2SIZE];
52	unsigned char sector_l;		/* 0 for VFAT */
53	unsigned char sector_u;		/* 0 for VFAT */
54	struct unicode_char text3[VSE3SIZE];
55};
56
57/* Enough size for a worst case number of full VSEs plus a null */
58#define VBUFSIZE ((MAX_VFAT_SUBENTRIES*VSE_NAMELEN) + 1)
59
60/* Max legal length of a VFAT long name */
61#define MAX_VNAMELEN (255)
62
63#define VSE_PRESENT 0x01
64#define VSE_LAST 0x40
65#define VSE_MASK 0x1f
66
67struct vfat_state {
68	wchar_t name[VBUFSIZE];
69	int status; /* is now a bit map of 32 bits */
70	int subentries;
71	unsigned char sum; /* no need to remember the sum for each entry,
72			    * it is the same anyways */
73	int present;
74};
75
76
77struct scan_state {
78	int match_free;
79	int shortmatch;
80	int longmatch;
81	unsigned int free_start;
82	unsigned int free_end;
83	int slot;
84	int got_slots;
85	unsigned int size_needed;
86	int max_entry;
87};
88
89#include "mtoolsDirentry.h"
90
91void clear_vfat(struct vfat_state  *);
92int unicode_write(wchar_t *, struct unicode_char *, int num, int *end);
93
94int clear_vses(Stream_t *, int, size_t);
95void autorename_short(struct dos_name_t *, int);
96void autorename_long(char *, int);
97
98#define DO_OPEN 1 /* open all files that are found */
99#define ACCEPT_LABEL 0x08
100#define ACCEPT_DIR 0x10
101#define ACCEPT_PLAIN 0x20
102#define MATCH_ANY 0x40
103#define NO_MSG 0x80
104#define NO_DOTS 0x100 /* accept no dots if matched by wildcard */
105#define DO_OPEN_DIRS 0x400 /* open all directories that are found */
106#define OPEN_PARENT 0x1000  /* in target lookup, open parent
107			     * instead of file itself */
108#define NO_UNIX 0x2000 /* in target lookup, consider all files to reside on
109			* the DOS fs */
110#endif
111