anchor.diff:      _ClientPort2 = sock_bind(CSock2, LocalSA),
       _ClientPort3 = sock_bind(CSock3, LocalSA),
       ServerSA = LocalSA#{port => ServerLPort},
  -    to_connect_tcp_await_timeout([CSock1, CSock2, CSock3], ServerSA),
  +    api_to_connect_tcp_await_timeout([CSock1, CSock2, CSock3], ServerSA),
       p("terminate server"),
       Server ! die,
       receive
  
positive.code: 
  %% This test case is intended to test the recv timeout option
  %% on an IPv6 TCP (stream) socket.
  to_recv_tcp6(suite) ->
      [];
  to_recv_tcp6(doc) ->
      [];
  to_recv_tcp6(_Config) when is_list(_Config) ->
      %% tc_begin(to_recv_tcp6),
      %% ok = to_recv_tcp(inet6),
      %% tc_end().
      not_yet_implemented().
  
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
  to_recv_tcp(Domain) ->
      process_flag(trap_exit, true),
      p("server -> open"),
      LSock     = sock_open(Domain, stream, tcp),
  
negative.code:     ok.
  
  
  api_to_connect_tcp_await_timeout(Socks, ServerSA) ->
      api_to_connect_tcp_await_timeout(Socks, ServerSA, 1).
  
  api_to_connect_tcp_await_timeout([], _ServerSA, _ID) ->
      ?FAIL(unexpected_success);
  api_to_connect_tcp_await_timeout([Sock|Socks], ServerSA, ID) ->
      p("~w: try connect", [ID]),
      case socket:connect(Sock, ServerSA, 5000) of
          {error, timeout} ->
  