Differential D20108 Diff 55024 src/util/externalcommandhelper.cpp

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src/util/externalcommandhelper.cpp

Show First 20 Lines • Show All 84 Lines • ▼ Show 20 Line(s)47{
85 return reply; 85​ return reply;
86} 86​}
87 87​
88/** Generates cryptographic nonce 88​/** Generates cryptographic nonce
89 * @return nonce 89​ * @return nonce
90*/ 90​*/
91quint64 ExternalCommandHelper::getNonce() 91​quint64 ExternalCommandHelper::getNonce()
92{ 92​{
93 quint64 nonce = m_Generator.generate(); 93​ const quint64 nonce = m_Generator.generate();
94 m_Nonces.insert(nonce); 94​ m_Nonces.insert(nonce);
95 return nonce; 95​ return nonce;
96} 96​}
97 97​
98/** Reads the given number of bytes from the sourceDevice into the given buffer. 98​/** Reads the given number of bytes from the sourceDevice into the given buffer.
99 @param sourceDevice device or file to read from 99​ @param sourceDevice device or file to read from
100 @param buffer buffer to store the bytes read in 100​ @param buffer buffer to store the bytes read in
101 @param offset offset where to begin reading 101​ @param offset offset where to begin reading
Show All 28 Lines129/** Writes the data from buffer to a given device or file.
130 @param targetDevice device or file to write to 130​ @param targetDevice device or file to write to
131 @param buffer the data that we write 131​ @param buffer the data that we write
132 @param offset offset where to begin writing 132​ @param offset offset where to begin writing
133 @return true on success 133​ @return true on success
134*/ 134​*/
135bool ExternalCommandHelper::writeData(const QString &targetDevice, const QByteArray& buffer, qint64 offset) 135​bool ExternalCommandHelper::writeData(const QString &targetDevice, const QByteArray& buffer, qint64 offset)
136{ 136​{
137 QFile device(targetDevice); 137​ QFile device(targetDevice);
138​
138 if (!device.open(QIODevice::WriteOnly | QIODevice::Append | QIODevice::Unbuffered)) { 139​ if (!device.open(QIODevice::WriteOnly | QIODevice::Append | QIODevice::Unbuffered)) {
139 qCritical() << xi18n("Could not open device <filename>%1</filename> for writing.", targetDevice); 140​ qCritical() << xi18n("Could not open device <filename>%1</filename> for writing.", targetDevice);
140 return false; 141​ return false;
141 } 142​ }
142 143​
143 if (!device.seek(offset)) { 144​ if (!device.seek(offset)) {
144 qCritical() << xi18n("Could not seek position %1 on device <filename>%2</filename>.", offset, targetDevice); 145​ qCritical() << xi18n("Could not seek position %1 on device <filename>%2</filename>.", offset, targetDevice);
145 return false; 146​ return false;
146 } 147​ }
147 148​
148 if (device.write(buffer) != buffer.size()) { 149​ if (device.write(buffer) != buffer.size()) {
149 qCritical() << xi18n("Could not write to device <filename>%1</filename>.", targetDevice); 150​ qCritical() << xi18n("Could not write to device <filename>%1</filename>.", targetDevice);
150 return false; 151​ return false;
151 } 152​ }
153​
152 return true; 154​ return true;
153} 155​}
154 156​
155// If targetDevice is empty then return QByteArray with data that was read from disk. 157​// If targetDevice is empty then return QByteArray with data that was read from disk.
156QVariantMap ExternalCommandHelper::copyblocks(const QByteArray& signature, const quint64 nonce, const QString& sourceDevice, const qint64 sourceFirstByte, const qint64 sourceLength, const QString& targetDevice, const qint64 targetFirstByte, const qint64 blockSize) 158​QVariantMap ExternalCommandHelper::copyblocks(const QByteArray& signature, const quint64 nonce, const QString& sourceDevice, const qint64 sourceFirstByte, const qint64 sourceLength, const QString& targetDevice, const qint64 targetFirstByte, const qint64 blockSize)
157{ 159​{
158 QVariantMap reply; 160​ QVariantMap reply;
159 reply[QStringLiteral("success")] = true; 161​ reply[QStringLiteral("success")] = true;
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