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Return empty string instead of 1 as adler32 checksum for empty files

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Hannah von Reth 2020-08-14 16:15:30 +02:00 committed by Kevin Ottens
parent 23f7c51f70
commit 1aa1ea7bea
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src/common/checksums.cpp
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@ -114,6 +114,10 @@ QByteArray calcSha1(QIODevice *device)
#ifdef ZLIB_FOUND #ifdef ZLIB_FOUND
QByteArray calcAdler32(QIODevice *device) QByteArray calcAdler32(QIODevice *device)
{ {
if (device->size() == 0)
{
return QByteArray();
}
QByteArray buf(BUFSIZE, Qt::Uninitialized); QByteArray buf(BUFSIZE, Qt::Uninitialized);
unsigned int adler = adler32(0L, Z_NULL, 0); unsigned int adler = adler32(0L, Z_NULL, 0);