private void ReadExtraField()
{
_readExtraDepth++;
// workitem 8098: ok (restore)
long posn = this.ArchiveStream.Position;
this.ArchiveStream.Seek(this._RelativeOffsetOfLocalHeader, SeekOrigin.Begin);
// workitem 10178
Crisis.Ionic.Zip.SharedUtilities.Workaround_Ladybug318918(this.ArchiveStream);
byte[] block = new byte[30];
this.ArchiveStream.Read(block, 0, block.Length);
int i = 26;
Int16 filenameLength = (short)(block[i++] + block[i++] * 256);
Int16 extraFieldLength = (short)(block[i++] + block[i++] * 256);
// workitem 8098: ok (relative)
this.ArchiveStream.Seek(filenameLength, SeekOrigin.Current);
// workitem 10178
Crisis.Ionic.Zip.SharedUtilities.Workaround_Ladybug318918(this.ArchiveStream);
ProcessExtraField(this.ArchiveStream, extraFieldLength);
// workitem 8098: ok (restore)
this.ArchiveStream.Seek(posn, SeekOrigin.Begin);
// workitem 10178
Crisis.Ionic.Zip.SharedUtilities.Workaround_Ladybug318918(this.ArchiveStream);
_readExtraDepth--;
}