tcp_client:

  class tcp_client: public csclient
  {
  public:
      tcp_client();
      tcp_client(const char* hostname, int portnr);
      virtual ~tcp_client();
  
      virtual int connect(const char* hostname, int portnr);
  
  protected:
      inet_address* _inetaddr;
      tcp_clientimp* _tcpimp;
  };