Add some pointer safety checks to underlying data service call [skip ci]

common/net/tcp_connection.cpp

@@ -224,6 +224,10 @@ std::string EQ::Net::TCPConnection::RemoteIP() const
 
 int EQ::Net::TCPConnection::RemotePort() const
 {
+	if (!m_socket) {
+		return 0;
+	}
+
 	sockaddr_storage addr;
 	int addr_len = sizeof(addr);
 	uv_tcp_getpeername(m_socket, (sockaddr*)&addr, &addr_len);
@@ -240,3 +244,11 @@ int EQ::Net::TCPConnection::RemotePort() const
 
 	return 0;
 }
+
+/**
+ * @return
+ */
+bool EQ::Net::TCPConnection::IsConnected() const
+{
+	return m_socket != nullptr;
+}

common/net/tcp_connection.h

@@ -24,10 +24,12 @@ namespace EQ
 			void Read(const char *data, size_t count);
 			void Write(const char *data, size_t count);
 
+			bool IsConnected() const;
 			std::string LocalIP() const;
 			int LocalPort() const;
 			std::string RemoteIP() const;
 			int RemotePort() const;
+
 		private:
 			TCPConnection();