miniupnpc-libevent : UPnP IGD control point (ie client) using libevent http://libevent.org https://github.com/libevent/libevent The UPnP Event code needs SUBSCRIBE / UNSUBSCRIBE / NOTIFY HTTP methods. Implementation is added to libevent 2.2.x : https://github.com/libevent/libevent/commit/8dcb94a4ca0999bdada6baa2a986f4c00a922060 TODO : improve error handling / reporting