internal static DataDescriptor FromFileHeader(FileHeaderBase fileHeader)
{
DataDescriptor dataDescriptor1 = new DataDescriptor();
dataDescriptor1.CompressedSize = fileHeader.CompressedSize;
dataDescriptor1.Crc = fileHeader.Crc;
dataDescriptor1.UncompressedSize = fileHeader.UncompressedSize;
DataDescriptor dataDescriptor2 = dataDescriptor1;
Zip64ExtraField zip64ExtraField = (Zip64ExtraField)null;
foreach (ExtraFieldBase extraField in fileHeader.ExtraFields)
{
zip64ExtraField = extraField as Zip64ExtraField;
if (zip64ExtraField != null)
{
break;
}
}
if (zip64ExtraField != null)
{
dataDescriptor2.useZip64 = true;
dataDescriptor2.CompressedSizeZip64 = !zip64ExtraField.CompressedSize.HasValue ? (ulong)fileHeader.CompressedSize : zip64ExtraField.CompressedSize.Value;
dataDescriptor2.UncompressedSizeZip64 = !zip64ExtraField.OriginalSize.HasValue ? (ulong)fileHeader.UncompressedSize : zip64ExtraField.OriginalSize.Value;
}
return(dataDescriptor2);
}
internal void FromFileHeader(FileHeaderBase fileHeader)
{
this.CompressedSize = fileHeader.CompressedSize;
this.CompressionMethod = fileHeader.CompressionMethod;
this.UncompressedSize = fileHeader.UncompressedSize;
this.Crc = fileHeader.Crc;
if (fileHeader.ExtraFieldsData != null)
{
this.ExtraFieldsData = new byte[fileHeader.ExtraFieldsData.Length];
Array.Copy((Array)fileHeader.ExtraFieldsData, (Array)this.ExtraFieldsData, fileHeader.ExtraFieldsData.Length);
this.ExtraFields = new List <ExtraFieldBase>(ExtraFieldBase.GetExtraFields(this.GetHeaderInfo()));
}
if (fileHeader.FileName != null)
{
this.FileName = new byte[fileHeader.FileName.Length];
Array.Copy((Array)fileHeader.FileName, (Array)this.FileName, fileHeader.FileName.Length);
}
this.FileTime = fileHeader.FileTime;
this.GeneralPurposeBitFlag = fileHeader.GeneralPurposeBitFlag;
this.VersionNeededToExtract = fileHeader.VersionNeededToExtract;
}
internal LocalFileHeader(FileHeaderBase fileHeader)
{
this.FromFileHeader(fileHeader);
}
