anchor.diff:  
   %% Minimal data transfer.
   xfer_stream_min(Config) when is_list(Config) ->
  +    {_, OSName} = os:type(),
       Stream = 0,
       Data = <<"The quick brown fox jumps over a lazy dog 0123456789">>,
       Loopback = {127,0,0,1},
  
positive.code: 			    state    = addr_confirmed,
  			    error    = 0,
  			    assoc_id = SbAssocId}} ->
  	    {Loopback,
  	     Pa,
  	     [#sctp_sndrcvinfo{stream   = Stream,
  			       assoc_id = SbAssocId}],
  	     Data} = log_ok(gen_sctp:recv(Sb, infinity));
          {FromIPX, FromPortX, AncDataX, DataX} = Other1 ->
              p("UNEXPECTED: "
                "~n   FromIP:   ~p"
  
negative.code:     case log_ok(gen_sctp:recv(Sb, infinity)) of
  	{Loopback,
  	 Pa,
  	 [#sctp_sndrcvinfo{stream   = Stream,
  			   assoc_id = SbAssocId}],
  	 Data} ->
              p("[1] received expected data with ancillary data => done"),
              ok;
  
  	{Loopback,
  	 Pa,
           [],
  