Fix error in Ohm's law formula as provided in FS#12023. Thanks to Leif Andersen.
[kugel-rb.git] / rbutil / rbutilqt / zip / unzip_p.h
blob394c9d534662d42dfcce90bd1b2c5241486c32ba
1 /****************************************************************************
2 ** Filename: unzip_p.h
3 ** Last updated [dd/mm/yyyy]: 28/01/2007
4 **
5 ** pkzip 2.0 decompression.
6 **
7 ** Some of the code has been inspired by other open source projects,
8 ** (mainly Info-Zip and Gilles Vollant's minizip).
9 ** Compression and decompression actually uses the zlib library.
11 ** Copyright (C) 2007-2008 Angius Fabrizio. All rights reserved.
13 ** This file is part of the OSDaB project (http://osdab.sourceforge.net/).
15 ** This file may be distributed and/or modified under the terms of the
16 ** GNU General Public License version 2 as published by the Free Software
17 ** Foundation and appearing in the file LICENSE.GPL included in the
18 ** packaging of this file.
20 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
21 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
23 ** See the file LICENSE.GPL that came with this software distribution or
24 ** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
26 **********************************************************************/
29 // W A R N I N G
30 // -------------
32 // This file is not part of the Zip/UnZip API. It exists purely as an
33 // implementation detail. This header file may change from version to
34 // version without notice, or even be removed.
36 // We mean it.
39 #ifndef OSDAB_UNZIP_P__H
40 #define OSDAB_UNZIP_P__H
42 #include "unzip.h"
43 #include "zipentry_p.h"
45 #include <QtGlobal>
47 // zLib authors suggest using larger buffers (128K or 256K) for (de)compression (especially for inflate())
48 // we use a 256K buffer here - if you want to use this code on a pre-iceage mainframe please change it ;)
49 #define UNZIP_READ_BUFFER (256*1024)
51 class UnzipPrivate
53 public:
54 UnzipPrivate();
56 // Replace this with whatever else you use to store/retrieve the password.
57 QString password;
59 bool skipAllEncrypted;
61 QMap<QString,ZipEntryP*>* headers;
63 QIODevice* device;
65 char buffer1[UNZIP_READ_BUFFER];
66 char buffer2[UNZIP_READ_BUFFER];
68 unsigned char* uBuffer;
69 const quint32* crcTable;
71 // Central Directory (CD) offset
72 quint32 cdOffset;
73 // End of Central Directory (EOCD) offset
74 quint32 eocdOffset;
76 // Number of entries in the Central Directory (as to the EOCD record)
77 quint16 cdEntryCount;
79 // The number of detected entries that have been skipped because of a non compatible format
80 quint16 unsupportedEntryCount;
82 QString comment;
84 UnZip::ErrorCode openArchive(QIODevice* device);
86 UnZip::ErrorCode seekToCentralDirectory();
87 UnZip::ErrorCode parseCentralDirectoryRecord();
88 UnZip::ErrorCode parseLocalHeaderRecord(const QString& path, ZipEntryP& entry);
90 void closeArchive();
92 UnZip::ErrorCode extractFile(const QString& path, ZipEntryP& entry, const QDir& dir, UnZip::ExtractionOptions options);
93 UnZip::ErrorCode extractFile(const QString& path, ZipEntryP& entry, QIODevice* device, UnZip::ExtractionOptions options);
95 UnZip::ErrorCode testPassword(quint32* keys, const QString& file, const ZipEntryP& header);
96 bool testKeys(const ZipEntryP& header, quint32* keys);
98 bool createDirectory(const QString& path);
100 inline void decryptBytes(quint32* keys, char* buffer, qint64 read);
102 inline quint32 getULong(const unsigned char* data, quint32 offset) const;
103 inline quint64 getULLong(const unsigned char* data, quint32 offset) const;
104 inline quint16 getUShort(const unsigned char* data, quint32 offset) const;
105 inline int decryptByte(quint32 key2) const;
106 inline void updateKeys(quint32* keys, int c) const;
107 inline void initKeys(const QString& pwd, quint32* keys) const;
109 inline QDateTime convertDateTime(const unsigned char date[2], const unsigned char time[2]) const;
112 #endif // OSDAB_UNZIP_P__H