anchor.diff:      ok              = gen_tcp:close(L),
       ok.
   
  +
   t_fdconnect(Config) when is_list(Config) ->
       ?TC_TRY(t_fdconnect, fun() -> do_t_fdconnect(Config) end).
   
  
positive.code:     ?P("try create file descriptor (fd)"),
      FD = gen_tcp_api_SUITE:getsockfd(),
      ?P("try connect to using file descriptor (~w)", [FD]),
      Client = case gen_tcp:connect(localhost, Port, [{fd,FD},{port,20002},
                                                      {active,false}]) of
                   {ok, CSock} ->
                       CSock;
                   {error, eaddrnotavail = CReason} ->
  
negative.code:                      {ok, LSock3} ->
                           LSock3;
                       {error, Reason3} ->
                           ?P("Listen failed (ifaddr):"
                              "~n   Reason3: ~p", [Reason3]),
                           ?SKIPT(listen_failed_str(Reason3))
                   end,
  	    implicit_inet6(S3, Addr),
  