1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/* $OpenBSD: ext.h,v 1.12 2014/07/09 18:32:34 tobias Exp $ */
/* $NetBSD: ext.h,v 1.5 1997/10/17 11:19:48 ws Exp $ */
/*
* Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank
* Copyright (c) 1995 Martin Husemann
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EXT_H
#define EXT_H
#include <sys/types.h>
#include "dosfs.h"
#include "fsutil.h"
#define LOSTDIR "LOST.DIR"
/*
* Options:
*/
extern int alwaysno; /* assume "no" for all questions */
extern int alwaysyes; /* assume "yes" for all questions */
extern int preen; /* we are preening */
extern int rdonly; /* device is opened read only (supersedes above) */
extern struct disklabel lab;
/*
* function declarations
*/
int ask(int, const char *, ...);
/*
* Check filesystem given as arg
*/
int checkfilesys(const char *);
/*
* Return values of various functions
*/
#define FSOK 0 /* Check was OK */
#define FSBOOTMOD 1 /* Boot block was modified */
#define FSDIRMOD 2 /* Some directory was modified */
#define FSFATMOD 4 /* The FAT was modified */
#define FSERROR 8 /* Some unrecovered error remains */
#define FSFATAL 16 /* Some unrecoverable error occurred */
/*
* read a boot block in a machine independent fashion and translate
* it into our struct bootblock.
*/
int readboot(int, struct bootblock *);
/*
* Correct the FSInfo block.
*/
int writefsinfo(int, struct bootblock *);
/*
* Read one of the FAT copies and return a pointer to the new
* allocated array holding our description of it.
*/
int readfat(int, struct bootblock *, int, struct fatEntry **);
/*
* Check two FAT copies for consistency and merge changes into the
* first if necessary.
*/
int comparefat(struct bootblock *, struct fatEntry *, struct fatEntry *, int);
/*
* Check a FAT
*/
int checkfat(struct bootblock *, struct fatEntry *);
/*
* Write back FAT entries
*/
int writefat(int, struct bootblock *, struct fatEntry *);
/*
* Read a directory
*/
int resetDosDirSection(struct bootblock *, struct fatEntry *);
void finishDosDirSection(void);
int handleDirTree(int, struct bootblock *, struct fatEntry *);
/*
* Cross-check routines run after everything is completely in memory
*/
/*
* Check for lost cluster chains
*/
int checklost(int, struct bootblock *, struct fatEntry *);
/*
* Try to reconnect a lost cluster chain
*/
int reconnect(int, struct bootblock *, struct fatEntry *, cl_t);
void finishlf(void);
/*
* Small helper functions
*/
/*
* Return the type of a reserved cluster as text
*/
char *rsrvdcltype(cl_t);
/*
* Clear a cluster chain in a FAT
*/
void clearchain(struct bootblock *, struct fatEntry *, cl_t);
#endif
|
