libtorrent is an open source C++ library implementing the BitTorrent
protocol, along with most popular extensions, making it suitable for
real world deployment. It is configurable to be able to fit both
servers and embedded devices.

The main goals of libtorrent are to be efficient and easy to use.

NB: this is NOT the same library as the net-p2p/libtorrent port!

WWW: https://libtorrent.org/