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 
29 struct 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 
45 struct 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 
67 struct 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 
77 struct 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 
91 void clear_vfat(struct vfat_state  *);
92 int unicode_write(wchar_t *, struct unicode_char *, int num, int *end);
93 
94 int clear_vses(Stream_t *, int, size_t);
95 void autorename_short(struct dos_name_t *, int);
96 void 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