UPNP port mapping library (currently UPNP 1.0)
This code is based on the "sbbi-upnplib" library from www.sbbi.net. That code was Apache licensed; our modifications are LGPL v3 licensed.
Over time we expect to support UPNP 1.1 and, hopefully, NAT-PMP.
Or this library could be replaced with a completely different one. Who knows? ;-)