mirror of
https://github.com/keepassxreboot/keepassxc.git
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76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/*
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* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
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* Copyright (C) 2010 Felix Geyer <debfx@fobos.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 or (at your option)
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* version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KEEPASSX_ENDIAN_H
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#define KEEPASSX_ENDIAN_H
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#include <QByteArray>
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#include <QIODevice>
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#include <QSysInfo>
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#include <QtEndian>
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namespace Endian
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{
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template <typename SizedQInt> SizedQInt bytesToSizedInt(const QByteArray& ba, QSysInfo::Endian byteOrder)
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{
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Q_ASSERT(ba.size() == sizeof(SizedQInt));
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if (byteOrder == QSysInfo::LittleEndian) {
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return qFromLittleEndian<SizedQInt>(reinterpret_cast<const uchar*>(ba.constData()));
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}
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return qFromBigEndian<SizedQInt>(reinterpret_cast<const uchar*>(ba.constData()));
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}
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template <typename SizedQInt> SizedQInt readSizedInt(QIODevice* device, QSysInfo::Endian byteOrder, bool* ok)
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{
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QByteArray ba = device->read(sizeof(SizedQInt));
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if (ba.size() != sizeof(SizedQInt)) {
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*ok = false;
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return 0;
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}
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*ok = true;
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return bytesToSizedInt<SizedQInt>(ba, byteOrder);
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}
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template <typename SizedQInt> QByteArray sizedIntToBytes(SizedQInt num, QSysInfo::Endian byteOrder)
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{
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QByteArray ba;
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ba.resize(sizeof(SizedQInt));
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if (byteOrder == QSysInfo::LittleEndian) {
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qToLittleEndian<SizedQInt>(num, reinterpret_cast<uchar*>(ba.data()));
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} else {
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qToBigEndian<SizedQInt>(num, reinterpret_cast<uchar*>(ba.data()));
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}
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return ba;
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}
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template <typename SizedQInt> bool writeSizedInt(SizedQInt num, QIODevice* device, QSysInfo::Endian byteOrder)
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{
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QByteArray ba = sizedIntToBytes<SizedQInt>(num, byteOrder);
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qint64 bytesWritten = device->write(ba);
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return (bytesWritten == ba.size());
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}
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} // namespace Endian
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#endif // KEEPASSX_ENDIAN_H
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