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Bugfix: Check that QRcode_encodeString didn't return NULL (error)

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Without this, any error will segfault Bitcoin-Qt
This commit is contained in:
Luke Dashjr 2012-04-14 21:00:27 -04:00
parent 278074eb23
commit b557c17a37
1 changed files with 6 additions and 4 deletions
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10
src/qt/qrcodedialog.cpp
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@ -38,12 +38,16 @@ void QRCodeDialog::genCode()
{
QString uri = getURI();
//qDebug() << "Encoding:" << uri.toUtf8().constData();
QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
if (code)
{
ui->lblQRCode->setText("");
QRcode *code = QRcode_encodeString(uri.toUtf8().constData(), 0, QR_ECLEVEL_L, QR_MODE_8, 1);
if (!code)
{
ui->lblQRCode->setText(tr("Error encoding URI into QR Code."));
return;
}
myImage = QImage(code->width + 8, code->width + 8, QImage::Format_RGB32);
myImage.fill(0xffffff);
unsigned char *p = code->data;
@ -58,8 +62,6 @@ void QRCodeDialog::genCode()
QRcode_free(code);
ui->lblQRCode->setPixmap(QPixmap::fromImage(myImage).scaled(300, 300));
}
else
ui->lblQRCode->setText(tr("Error encoding URI into QR Code; try to reduce the text for label / message."));
}
QString QRCodeDialog::getURI()