1 /* 2 * Copyright (C) 2010 Felix Geyer <debfx@fobos.de> 3 * 4 * This program is free software: you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation, either version 2 or (at your option) 7 * version 3 of the License. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef KEEPASSX_HASHEDBLOCKSTREAM_H 19 #define KEEPASSX_HASHEDBLOCKSTREAM_H 20 21 #include <QSysInfo> 22 23 #include "streams/LayeredStream.h" 24 25 class HashedBlockStream : public LayeredStream 26 { 27 Q_OBJECT 28 29 public: 30 explicit HashedBlockStream(QIODevice* baseDevice); 31 HashedBlockStream(QIODevice* baseDevice, qint32 blockSize); 32 ~HashedBlockStream(); 33 34 bool reset() override; 35 void close() override; 36 37 protected: 38 qint64 readData(char* data, qint64 maxSize) override; 39 qint64 writeData(const char* data, qint64 maxSize) override; 40 41 private: 42 void init(); 43 bool readHashedBlock(); 44 bool writeHashedBlock(); 45 46 static const QSysInfo::Endian ByteOrder; 47 qint32 m_blockSize; 48 QByteArray m_buffer; 49 int m_bufferPos; 50 quint32 m_blockIndex; 51 bool m_eof; 52 bool m_error; 53 }; 54 55 #endif // KEEPASSX_HASHEDBLOCKSTREAM_H 56