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
|
/* -*- 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 INCLUDED_SOT_SOURCE_SDSTOR_STGELEM_HXX
#define INCLUDED_SOT_SOURCE_SDSTOR_STGELEM_HXX
#include <sot/stg.hxx>
class StgIo;
class SvStream;
SvStream& ReadClsId( SvStream&, ClsId& );
SvStream& WriteClsId( SvStream&, const ClsId& );
class StgHeader
{
static const sal_uInt8 cFATPagesInHeader = 109;
sal_uInt8 m_cSignature[ 8 ]; // 00 signature (see below)
ClsId m_aClsId; // 08 Class ID
sal_Int32 m_nVersion; // 18 version number
sal_uInt16 m_nByteOrder; // 1C Unicode byte order indicator
sal_Int16 m_nPageSize; // 1E 1 << nPageSize = block size
sal_Int16 m_nDataPageSize; // 20 1 << this size == data block size
sal_uInt8 m_bDirty; // 22 internal dirty flag (should be
// bool, but probably required to
// be exactly one byte)
sal_uInt8 m_cReserved[ 9 ]; // 23
sal_Int32 m_nFATSize; // 2C total number of FAT pages
sal_Int32 m_nTOCstrm; // 30 starting page for the TOC stream
sal_Int32 m_nReserved; // 34
sal_Int32 m_nThreshold; // 38 minimum file size for big data
sal_Int32 m_nDataFAT; // 3C page # of 1st data FAT block
sal_Int32 m_nDataFATSize; // 40 # of data fat blocks
sal_Int32 m_nMasterChain; // 44 chain to the next master block
sal_Int32 m_nMaster; // 48 # of additional master blocks
sal_Int32 m_nMasterFAT[ cFATPagesInHeader ]; // 4C first [cFATPagesInHeader] master FAT pages
public:
StgHeader();
void Init(); // initialize the header
bool Load( StgIo& );
bool Load( SvStream& );
bool Store( StgIo& );
bool Check(); // check the signature and version
sal_Int32 GetTOCStart() const { return m_nTOCstrm; }
void SetTOCStart( sal_Int32 n );
sal_Int32 GetDataFATStart() const { return m_nDataFAT; }
void SetDataFATStart( sal_Int32 n );
sal_Int32 GetDataFATSize() const { return m_nDataFATSize; }
void SetDataFATSize( sal_Int32 n );
sal_Int32 GetThreshold() const { return m_nThreshold; }
short GetPageSize() const { return m_nPageSize; }
short GetDataPageSize() const { return m_nDataPageSize; }
sal_Int32 GetFATSize() const { return m_nFATSize; }
void SetFATSize( sal_Int32 n );
sal_Int32 GetFATChain() const { return m_nMasterChain; }
void SetFATChain( sal_Int32 n );
sal_Int32 GetMasters() const { return m_nMaster; }
void SetMasters( sal_Int32 n );
static short GetFAT1Size() { return cFATPagesInHeader; }
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_ROOT = 5
};
enum StgEntryRef { // reference blocks:
STG_LEFT = 0, // left
STG_RIGHT = 1, // right
STG_CHILD = 2, // child
STG_DATA = 3 // data start
};
#define STGENTRY_SIZE 128
//StructuredStorageDirectoryEntry
class StgEntry
{ // directory entry
sal_Unicode m_nName[ 32 ]; // 00 name as WCHAR
sal_uInt16 m_nNameLen; // 40 size of name in bytes including 00H
sal_uInt8 m_cType; // 42 entry type
sal_uInt8 m_cFlags; // 43 0 or 1 (tree balance?)
sal_Int32 m_nLeft; // 44 left node entry
sal_Int32 m_nRight; // 48 right node entry
sal_Int32 m_nChild; // 4C 1st child entry if storage
ClsId m_aClsId; // 50 class ID (optional)
sal_Int32 m_nFlags; // 60 state flags(?)
sal_Int32 m_nMtime[ 2 ]; // 64 modification time
sal_Int32 m_nAtime[ 2 ]; // 6C creation and access time
sal_Int32 m_nPage1; // 74 starting block (either direct or translated)
sal_Int32 m_nSize; // 78 file size
sal_Int32 m_nUnknown; // 7C unknown
OUString m_aName; // Name as Compare String (ascii, upper)
public:
void Init(); // initialize the data
bool SetName( const OUString& ); // store a name (ASCII, up to 32 chars)
void GetName( OUString& rName ) const;
// fill in the name
sal_Int32 Compare( const StgEntry& ) const; // compare two entries
bool Load( const void* pBuffer, sal_uInt32 nBufSize, sal_uInt64 nUnderlyingStreamSize );
void Store( void* );
StgEntryType GetType() const { return (StgEntryType) m_cType; }
sal_Int32 GetStartPage() const { return m_nPage1; }
void SetType( StgEntryType t ) { m_cType = (sal_uInt8) t; }
sal_Int32 GetSize() const { return m_nSize; }
void SetSize( sal_Int32 n ) { m_nSize = n; }
const ClsId& GetClassId() const { return m_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: */
|
