Evade networking crash.

libp2p/Host.cpp

@@ -447,6 +447,9 @@ void Host::connect(std::shared_ptr<Node> const& _n)
 	_n->failedAttempts++;
 	m_ready -= _n->index;
 	bi::tcp::socket* s = new bi::tcp::socket(m_ioService);
+
+	auto n = node(_n->id);
+	if (n)
 		s->async_connect(_n->address, [=](boost::system::error_code const& ec)
 		{
 			if (ec)
@@ -460,13 +463,15 @@ void Host::connect(std::shared_ptr<Node> const& _n)
 			{
 				clog(NetConnect) << "Connected to" << _n->id.abridged() << "@" << _n->address;
 				_n->lastConnected = std::chrono::system_clock::now();
-			auto p = make_shared<Session>(this, std::move(*s), node(_n->id), true);		// true because we don't care about ids matched for now. Once we have permenant IDs this will matter a lot more and we can institute a safer mechanism.
+				auto p = make_shared<Session>(this, std::move(*s), n, true);		// true because we don't care about ids matched for now. Once we have permenant IDs this will matter a lot more and we can institute a safer mechanism.
 				p->start();
 			}
 			delete s;
 			Guard l(x_pendingNodeConns);
 			m_pendingNodeConns.erase(nptr);
 		});
+	else
+		clog(NetWarn) << "Trying to connect to node not in node table.";
 }
 
 bool Host::havePeer(NodeId _id) const