Reverting try catch around message type reader - also handles network disconnect smoothly.

src/VANetMessage.cpp

@@ -201,8 +201,20 @@ void CVANetMessage::ReadAnswer()
 	try
 	{
 		VANetCompat::sint32 nMessageSize;
-		int nReturn = m_pConnection->ReadInt32( nMessageSize );
-		assert( nReturn == sizeof( VANetCompat::sint32 ) );
+		int nReturn;
+		try
+		{
+			nReturn = m_pConnection->ReadInt32( nMessageSize );
+		}
+		catch( ... )
+		{
+			nReturn = -1; // Network connection error
+		}
+	
+		if( nReturn != sizeof(VANetCompat::sint32) )
+		{
+			VA_EXCEPT2( NETWORK_ERROR, "Received less bytes than expected during ReadAnswer of VANetMessage. Payload too long?" );
+		}
 
 		// we need at least the three protocol types
 		assert( nMessageSize >= 3 * sizeof( VANetCompat::sint32 ) );
@@ -322,7 +334,8 @@ std::string CVANetMessage::ReadString()
 	assert( nReturn == sizeof( VANetCompat::sint32 ) );
 
 	// Empty string?
-	if( nSize == 0 ) return "";
+	if( nSize == 0 )
+		return "";
 
 	std::string sValue;
 	nReturn = m_oIncoming.ReadString( sValue, nSize );