public ZipReturn ZipFileCloseWriteStream(byte[] crc32)
{
SevenZipLocalFile localFile = _localFiles[_localFiles.Count - 1];
localFile.CRC = new[] { crc32[3], crc32[2], crc32[1], crc32[0] };
if (unpackedStreamInfo != null)
{
unpackedStreamInfo.Crc = Util.BytesToUint(localFile.CRC);
}
return(ZipReturn.ZipGood);
}
public ZipReturn ZipFileOpenWriteStream(bool raw, bool trrntzip, string filename, ulong uncompressedSize, ushort compressionMethod, out Stream stream, TimeStamps dateTime)
{
// check if we are writing a directory
if (uncompressedSize == 0 && filename.Substring(filename.Length - 1, 1) == "/")
{
ZipFileAddDirectory(filename);
stream = null;
return(ZipReturn.ZipGood);
}
SevenZipLocalFile localFile = new()
{
Filename = filename,
UncompressedSize = uncompressedSize
};
_localFiles.Add(localFile);
if (uncompressedSize == 0)
{
unpackedStreamInfo = null;
stream = null;
return(ZipReturn.ZipGood);
}
#if !solid
outStreams newStream = new()
{
packedStart = (ulong)_zipFs.Position,
compType = _compType,
packedSize = 0,
unpackedStreams = new List <UnpackedStreamInfo>()
};
switch (_compType)
{
case SevenZipCompressType.lzma:
LzmaEncoderProperties ep = new(true, GetDictionarySizeFromUncompressedSize(uncompressedSize), 64);
LzmaStream lzs = new(ep, false, _zipFs);
newStream.Method = new byte[] { 3, 1, 1 };
newStream.Properties = lzs.Properties;
_compressStream = lzs;
break;
case SevenZipCompressType.zstd:
ZstdSharp.CompressionStream zss = new(_zipFs, 19);
newStream.Method = new byte[] { 4, 247, 17, 1 };
newStream.Properties = new byte[] { 1, 5, 19, 0, 0 };
_compressStream = zss;
break;
case SevenZipCompressType.uncompressed:
newStream.Method = new byte[] { 0 };
newStream.Properties = null;
_compressStream = _zipFs;
break;
}
_packedOutStreams.Add(newStream);
#endif
unpackedStreamInfo = new UnpackedStreamInfo {
UnpackedSize = uncompressedSize
};
_packedOutStreams[_packedOutStreams.Count - 1].unpackedStreams.Add(unpackedStreamInfo);
stream = _compressStream;
return(ZipReturn.ZipGood);
}
public ZipReturn ZipFileCloseWriteStream(byte[] crc32)
{
SevenZipLocalFile localFile = _localFiles[_localFiles.Count - 1];
localFile.CRC = new[] { crc32[3], crc32[2], crc32[1], crc32[0] };
if (unpackedStreamInfo != null)
{
unpackedStreamInfo.Crc = Util.BytesToUint(localFile.CRC);
}
#if !solid
if (unpackedStreamInfo != null)
{
if (_packedOutStreams[_packedOutStreams.Count - 1].compType != SevenZipCompressType.uncompressed)
{
_compressStream.Flush();
_compressStream.Close();
}
_packedOutStreams[_packedOutStreams.Count - 1].packedSize = (ulong)_zipFs.Position - _packedOutStreams[_packedOutStreams.Count - 1].packedStart;
}
#endif
return(ZipReturn.ZipGood);
}
