It works!!!

ConsoleSession.h

@@ -10,28 +10,28 @@ namespace core {
    ///
    /// ConsoleSession
    ///
-   /// Extends the session parameters for this TCPSocket derived object. 
+   /// Extends the session parameters for this TCPSocket derived object.
    /// Extend the protocol() method in order to define the behavior and
    /// protocol interaction for this socket which is a console session.
-   /// 
+   ///
 
    class ConsoleSession : public TerminalSession {
-  
+
     public:
       ConsoleSession(EPoll &ePoll, TCPServer &server);
-      ~ConsoleSession(); 
-   
+      ~ConsoleSession();
+
       void writeLog(std::string data);
 
     protected:
-      void protocol(coreutils::ZString data) override; 
-   
+      void protocol(coreutils::ZString &data) override;
+
     private:
       enum Status {WELCOME, LOGIN, WAIT_USER_PROFILE, PASSWORD, WAIT_PASSWORD, PROMPT, INPUT, PROCESS, DONE};
-      Status status = WELCOME;   
-      void doCommand(coreutils::ZString request);
+      Status status = WELCOME;
+      void doCommand(coreutils::ZString &request);
       coreutils::ZString command;
-  
+
    };
 
 }