If t.Length is nil the client won't work

[LeonardoKaftal]

Some torrent file in their bencode does not have specified the Length value, (the one wich specify how many bytes the download will be), this mean that the client won't work because it won't allocate any bytes (0 bytes) for piece buffer.
Another problem is that if t.Length is 0 it won't be calculated the correct piece length for every piece work because calculateBoundForPiece() is also based on t.Length.
Another problem as other as already said is that if t.Length is very big like 16 gb the client can't simply download the torrent, it should write on disk every piece it download instead,