anchor.diff:  
   all() -> 
       [basic, resolve, edns0, txt_record, files_monitor,
  -     last_ms_answer,
  +     last_ms_answer, server_case_scramble,
        gethostbyaddr, gethostbyaddr_v6, gethostbyname,
        gethostbyname_v6, getaddr, getaddr_v6, ipv4_to_ipv6,
        host_and_addr].
  
positive.code: 	edns0 -> otptest;
  	files_monitor -> otptest;
  	last_ms_answer -> otptest;
  	_ -> undefined
      end.
  
  
negative.code:     [IP] = inet_res:lookup(NameC, in, a, [{nameservers,[NS]},verbose]),
      %%
      %% gethostbyname
      {ok,#hostent{h_name=Name, h_addr_list=[IP]}} = inet_res:gethostbyname(Name),
      {ok,#hostent{h_name=NameC, h_addr_list=[IP]}} = inet_res:gethostbyname(NameC),
      %%
      %% getbyname
      {ok,#hostent{h_name=Name, h_addr_list=[IP]}} = inet_res:getbyname(Name, a),
      {ok,#hostent{h_name=NameC, h_addr_list=[IP]}} = inet_res:getbyname(NameC, a),
      ok.
  
  %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  