close stream if SYACK is not acked

libi2pd/Streaming.cpp

@@ -1338,6 +1338,13 @@ namespace stream
 	void Stream::ResendPacket ()
 	{
 		// check for resend attempts
+		if (m_SequenceNumber == 1 && m_NumResendAttempts > 0)
+		{
+			LogPrint (eLogWarning, "Streaming: SYNACK packet was not ACKed after ", m_NumResendAttempts, " attempts, terminate, rSID=", m_RecvStreamID, ", sSID=", m_SendStreamID);
+			m_Status = eStreamStatusReset;
+			Close ();
+			return;
+		}
 		if (m_NumResendAttempts >= MAX_NUM_RESEND_ATTEMPTS)
 		{
 			LogPrint (eLogWarning, "Streaming: packet was not ACKed after ", MAX_NUM_RESEND_ATTEMPTS, " attempts, terminate, rSID=", m_RecvStreamID, ", sSID=", m_SendStreamID);
@@ -1424,13 +1431,7 @@ namespace stream
 			SendPackets (packets);
 			m_LastSendTime = ts;
 			m_IsSendTime = false;
-				if (m_IsNAcked || m_IsResendNeeded) 
+			if (m_IsNAcked || m_IsResendNeeded) ScheduleSend ();
-				{
-					if (m_SequenceNumber > 1) // doesn't resend agressively very first packet
-						ScheduleSend ();
-					else
-						ScheduleResend ();
-				}	
 		}
 		else
 			SendBuffer ();