select first hop from existing connections if applicable

Transports.cpp

@@ -489,6 +489,14 @@ namespace transport
 			m_PeerCleanupTimer.async_wait (std::bind (&Transports::HandlePeerCleanupTimer, this, std::placeholders::_1));
 		}	
 	}
+
+	std::shared_ptr<const i2p::data::RouterInfo> Transports::GetRandomPeer () const
+	{
+		CryptoPP::RandomNumberGenerator& rnd = i2p::context.GetRandomNumberGenerator ();
+		auto it = m_Peers.begin ();
+		std::advance (it, rnd.GenerateWord32 (0, m_Peers.size () - 1));	
+		return it != m_Peers.end () ? it->second.router : nullptr;
+	}
 }
 }