Merge pull request #283 from giact/develop-net-hang

Fixed peer hanging when receiving a bad synchronisation token
11 years ago · c44e734b1d
1 changed files with 5 additions and 1 deletions
--- a/libethereum/PeerSession.cpp
+++ b/libethereum/PeerSession.cpp
@ -564,7 +564,11 @@ void PeerSession::doRead()
 				while (m_incoming.size() > 8)
 				{
 					if (m_incoming[0] != 0x22 || m_incoming[1] != 0x40 || m_incoming[2] != 0x08 || m_incoming[3] != 0x91)
-						doRead();
+					{
+						cwarn << "INVALID SYNCHRONISATION TOKEN; expected = 22400891; received = " << toHex(bytesConstRef(m_incoming.data(), 4));
+						disconnect(BadProtocol);
+						return;
+					}
 					else
 					{
 						uint32_t len = fromBigEndian<uint32_t>(bytesConstRef(m_incoming.data() + 4, 4));