This is a repost of the source code from here:
http://klomp.org/snark/
Introduction
Snark is a client for downloading and sharing files distributed with the BitTorrent protocol. It is mainly used for exploring the BitTorrent protocol and experimenting with the the GNU Compiler for Java (gcj). But it can also be used as a regular BitTorrent Client.
Snark can also act as a torrent creator, micro http server for delivering metainfo.torrent files and has an integrated Tracker for making sharing of files as easy as possible.
When given the option --share Snark will automatically create a .torrent file, start a very simple webserver to distribute the metainfo.torrent file and a local tracker that other BitTorrent clients can connect to.
snark [--debug [level]] [--no-commands] [--port
] [--share (|)] (||) --debug Shows some extra info and stacktraces. level 
