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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
// This file reflects the structure of MS file elements.
// It is very sensitive to alignment!
#ifndef _STGELEM_HXX
#define _STGELEM_HXX
#include <tools/solar.h>
#include <sot/stg.hxx>
class StgIo;
class SvStream;
class String;
SvStream& operator>>( SvStream&, ClsId& );
SvStream& operator<<( SvStream&, const ClsId& );
class StgHeader
{
sal_uInt8 cSignature[ 8 ]; // 00 signature (see below)
ClsId aClsId; // 08 Class ID
sal_Int32 nVersion; // 18 version number
sal_uInt16 nByteOrder; // 1C Unicode byte order indicator
sal_Int16 nPageSize; // 1E 1 << nPageSize = block size
sal_Int16 nDataPageSize; // 20 1 << this size == data block size
sal_uInt8 bDirty; // 22 internal dirty flag
sal_uInt8 cReserved[ 9 ]; // 23
sal_Int32 nFATSize; // 2C total number of FAT pages
sal_Int32 nTOCstrm; // 30 starting page for the TOC stream
sal_Int32 nReserved; // 34
sal_Int32 nThreshold; // 38 minimum file size for big data
sal_Int32 nDataFAT; // 3C page # of 1st data FAT block
sal_Int32 nDataFATSize; // 40 # of data fat blocks
sal_Int32 nMasterChain; // 44 chain to the next master block
sal_Int32 nMaster; // 48 # of additional master blocks
sal_Int32 nMasterFAT[ 109 ]; // 4C first 109 master FAT pages
public:
StgHeader();
void Init(); // initialize the header
sal_Bool Load( StgIo& );
sal_Bool Load( SvStream& );
sal_Bool Store( StgIo& );
sal_Bool Check(); // check the signature and version
short GetByteOrder() const { return nByteOrder; }
sal_Int32 GetTOCStart() const { return nTOCstrm; }
void SetTOCStart( sal_Int32 n );
sal_Int32 GetDataFATStart() const { return nDataFAT; }
void SetDataFATStart( sal_Int32 n );
sal_Int32 GetDataFATSize() const { return nDataFATSize; }
void SetDataFATSize( sal_Int32 n );
sal_Int32 GetThreshold() const { return nThreshold; }
short GetPageSize() const { return nPageSize; }
short GetDataPageSize() const { return nDataPageSize; }
sal_Int32 GetFATSize() const { return nFATSize; }
void SetFATSize( sal_Int32 n );
sal_Int32 GetFATChain() const { return nMasterChain; }
void SetFATChain( sal_Int32 n );
sal_Int32 GetMasters() const { return nMaster; }
void SetMasters( sal_Int32 n );
short GetFAT1Size() const { return 109; }
const ClsId& GetClassId() const { return aClsId; }
sal_Int32 GetFATPage( short ) const;
void SetFATPage( short, sal_Int32 );
};
enum StgEntryType { // dir entry types:
STG_EMPTY = 0,
STG_STORAGE = 1,
STG_STREAM = 2,
STG_LOCKBYTES = 3,
STG_PROPERTY = 4,
STG_ROOT = 5
};
enum StgEntryRef { // reference blocks:
STG_LEFT = 0, // left
STG_RIGHT = 1, // right
STG_CHILD = 2, // child
STG_DATA = 3 // data start
};
enum StgEntryTime { // time codes:
STG_MODIFIED = 0, // last modification
STG_ACCESSED = 1 // last access
};
class StgStream;
#define STGENTRY_SIZE 128
//StructuredStorageDirectoryEntry
class StgEntry { // directory enty
sal_uInt16 nName[ 32 ]; // 00 name as WCHAR
sal_uInt16 nNameLen; // 40 size of name in bytes including 00H
sal_uInt8 cType; // 42 entry type
sal_uInt8 cFlags; // 43 0 or 1 (tree balance?)
sal_Int32 nLeft; // 44 left node entry
sal_Int32 nRight; // 48 right node entry
sal_Int32 nChild; // 4C 1st child entry if storage
ClsId aClsId; // 50 class ID (optional)
sal_Int32 nFlags; // 60 state flags(?)
sal_Int32 nMtime[ 2 ]; // 64 modification time
sal_Int32 nAtime[ 2 ]; // 6C creation and access time
sal_Int32 nPage1; // 74 starting block (either direct or translated)
sal_Int32 nSize; // 78 file size
sal_Int32 nUnknown; // 7C unknown
String aName; // Name as Compare String (ascii, upper)
public:
sal_Bool Init(); // initialize the data
sal_Bool SetName( const String& ); // store a name (ASCII, up to 32 chars)
void GetName( String& rName ) const;
// fill in the name
short Compare( const StgEntry& ) const; // compare two entries
sal_Bool Load( const void* );
void Store( void* );
StgEntryType GetType() const { return (StgEntryType) cType; }
sal_Int32 GetStartPage() const { return nPage1; }
void SetType( StgEntryType t ) { cType = (sal_uInt8) t; }
sal_uInt8 GetFlags() const { return cFlags; }
void SetFlags( sal_uInt8 c ) { cFlags = c; }
sal_Int32 GetSize() const { return nSize; }
void SetSize( sal_Int32 n ) { nSize = n; }
const ClsId& GetClassId() const { return aClsId; }
void SetClassId( const ClsId& );
sal_Int32 GetLeaf( StgEntryRef ) const;
void SetLeaf( StgEntryRef, sal_Int32 );
};
#define STG_FREE -1L // page is free
#define STG_EOF -2L // page is last page in chain
#define STG_FAT -3L // page is FAT page
#define STG_MASTER -4L // page is master FAT page
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
