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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : // This file reflects the structure of MS file elements.
21 : // It is very sensitive to alignment!
22 :
23 : #ifndef _STGELEM_HXX
24 : #define _STGELEM_HXX
25 :
26 : #include <tools/solar.h>
27 :
28 : #include <sot/stg.hxx>
29 :
30 : class StgIo;
31 : class SvStream;
32 : class String;
33 :
34 : SvStream& operator>>( SvStream&, ClsId& );
35 : SvStream& operator<<( SvStream&, const ClsId& );
36 :
37 : class StgHeader
38 : {
39 : sal_uInt8 cSignature[ 8 ]; // 00 signature (see below)
40 : ClsId aClsId; // 08 Class ID
41 : sal_Int32 nVersion; // 18 version number
42 : sal_uInt16 nByteOrder; // 1C Unicode byte order indicator
43 : sal_Int16 nPageSize; // 1E 1 << nPageSize = block size
44 : sal_Int16 nDataPageSize; // 20 1 << this size == data block size
45 : sal_uInt8 bDirty; // 22 internal dirty flag
46 : sal_uInt8 cReserved[ 9 ]; // 23
47 : sal_Int32 nFATSize; // 2C total number of FAT pages
48 : sal_Int32 nTOCstrm; // 30 starting page for the TOC stream
49 : sal_Int32 nReserved; // 34
50 : sal_Int32 nThreshold; // 38 minimum file size for big data
51 : sal_Int32 nDataFAT; // 3C page # of 1st data FAT block
52 : sal_Int32 nDataFATSize; // 40 # of data fat blocks
53 : sal_Int32 nMasterChain; // 44 chain to the next master block
54 : sal_Int32 nMaster; // 48 # of additional master blocks
55 : sal_Int32 nMasterFAT[ 109 ]; // 4C first 109 master FAT pages
56 : public:
57 : StgHeader();
58 :
59 : void Init(); // initialize the header
60 : sal_Bool Load( StgIo& );
61 : sal_Bool Load( SvStream& );
62 : sal_Bool Store( StgIo& );
63 : sal_Bool Check(); // check the signature and version
64 : short GetByteOrder() const { return nByteOrder; }
65 102 : sal_Int32 GetTOCStart() const { return nTOCstrm; }
66 : void SetTOCStart( sal_Int32 n );
67 99 : sal_Int32 GetDataFATStart() const { return nDataFAT; }
68 : void SetDataFATStart( sal_Int32 n );
69 0 : sal_Int32 GetDataFATSize() const { return nDataFATSize; }
70 : void SetDataFATSize( sal_Int32 n );
71 1149 : sal_Int32 GetThreshold() const { return nThreshold; }
72 201 : short GetPageSize() const { return nPageSize; }
73 983 : short GetDataPageSize() const { return nDataPageSize; }
74 102 : sal_Int32 GetFATSize() const { return nFATSize; }
75 : void SetFATSize( sal_Int32 n );
76 20 : sal_Int32 GetFATChain() const { return nMasterChain; }
77 : void SetFATChain( sal_Int32 n );
78 20 : sal_Int32 GetMasters() const { return nMaster; }
79 : void SetMasters( sal_Int32 n );
80 28047 : short GetFAT1Size() const { return 109; }
81 : const ClsId& GetClassId() const { return aClsId; }
82 : sal_Int32 GetFATPage( short ) const;
83 : void SetFATPage( short, sal_Int32 );
84 : };
85 :
86 : enum StgEntryType { // dir entry types:
87 : STG_EMPTY = 0,
88 : STG_STORAGE = 1,
89 : STG_STREAM = 2,
90 : STG_LOCKBYTES = 3,
91 : STG_PROPERTY = 4,
92 : STG_ROOT = 5
93 : };
94 :
95 : enum StgEntryRef { // reference blocks:
96 : STG_LEFT = 0, // left
97 : STG_RIGHT = 1, // right
98 : STG_CHILD = 2, // child
99 : STG_DATA = 3 // data start
100 : };
101 :
102 : enum StgEntryTime { // time codes:
103 : STG_MODIFIED = 0, // last modification
104 : STG_ACCESSED = 1 // last access
105 : };
106 :
107 : #define STGENTRY_SIZE 128
108 :
109 : //StructuredStorageDirectoryEntry
110 21819 : class StgEntry { // directory enty
111 : sal_uInt16 nName[ 32 ]; // 00 name as WCHAR
112 : sal_uInt16 nNameLen; // 40 size of name in bytes including 00H
113 : sal_uInt8 cType; // 42 entry type
114 : sal_uInt8 cFlags; // 43 0 or 1 (tree balance?)
115 : sal_Int32 nLeft; // 44 left node entry
116 : sal_Int32 nRight; // 48 right node entry
117 : sal_Int32 nChild; // 4C 1st child entry if storage
118 : ClsId aClsId; // 50 class ID (optional)
119 : sal_Int32 nFlags; // 60 state flags(?)
120 : sal_Int32 nMtime[ 2 ]; // 64 modification time
121 : sal_Int32 nAtime[ 2 ]; // 6C creation and access time
122 : sal_Int32 nPage1; // 74 starting block (either direct or translated)
123 : sal_Int32 nSize; // 78 file size
124 : sal_Int32 nUnknown; // 7C unknown
125 : String aName; // Name as Compare String (ascii, upper)
126 : public:
127 : sal_Bool Init(); // initialize the data
128 : sal_Bool SetName( const String& ); // store a name (ASCII, up to 32 chars)
129 : void GetName( String& rName ) const;
130 : // fill in the name
131 : short Compare( const StgEntry& ) const; // compare two entries
132 : sal_Bool Load( const void* pBuffer, sal_uInt32 nBufSize );
133 : void Store( void* );
134 8350 : StgEntryType GetType() const { return (StgEntryType) cType; }
135 0 : sal_Int32 GetStartPage() const { return nPage1; }
136 344 : void SetType( StgEntryType t ) { cType = (sal_uInt8) t; }
137 : sal_uInt8 GetFlags() const { return cFlags; }
138 : void SetFlags( sal_uInt8 c ) { cFlags = c; }
139 1709883 : sal_Int32 GetSize() const { return nSize; }
140 3800 : void SetSize( sal_Int32 n ) { nSize = n; }
141 18 : const ClsId& GetClassId() const { return aClsId; }
142 : void SetClassId( const ClsId& );
143 : sal_Int32 GetLeaf( StgEntryRef ) const;
144 : void SetLeaf( StgEntryRef, sal_Int32 );
145 : };
146 :
147 :
148 : #define STG_FREE -1L // page is free
149 : #define STG_EOF -2L // page is last page in chain
150 : #define STG_FAT -3L // page is FAT page
151 : #define STG_MASTER -4L // page is master FAT page
152 :
153 : #endif
154 :
155 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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