Depending on how a socket was created, #getsockname will return either a
struct sockaddr as a String (the default ruby Socket behavior) or an
Array (the extend'd Rex::Socket::Tcp behavior). Avoid the ambiguity when
generating SSL certificates for meterpreter handlers by always picking a
random hostname.
This is by no means a proper fix for the underlying problem of
Socket#getsockname having ambiguous behavior before and after being
extended with Rex::Socket::Tcp. It does, however, solve the immediate
problem of not being able to create tunneled meterpreter sessions over
http(s) sessions.
[SeeRM #7350]