Merge pull request #2130 from arkpar/bc2

Handle missing status field gracefully

libethereum/EthereumPeer.cpp

@@ -185,10 +185,18 @@ bool EthereumPeer::interpret(unsigned _id, RLP const& _r)
 		m_latestHash = _r[3].toHash<h256>();
 		m_genesisHash = _r[4].toHash<h256>();
 		if (m_peerCapabilityVersion == host()->protocolVersion())
+		{
+			if (_r.itemCount() != 6)
+			{
+				clog(NetImpolite) << "Peer does not support PV61+ status extension.";
+				m_protocolVersion = EthereumHost::c_oldProtocolVersion;
+			}
+			else
 			{
 				m_protocolVersion = host()->protocolVersion();
 				m_latestBlockNumber = _r[5].toInt<u256>();
 			}
+		}
 
 		clog(NetMessageSummary) << "Status:" << m_protocolVersion << "/" << m_networkId << "/" << m_genesisHash << "/" << m_latestBlockNumber << ", TD:" << m_totalDifficulty << "=" << m_latestHash;
 		setAsking(Asking::Nothing);