sldns_wire2str_rcode
char* sldns_wire2str_rcode(int rcode);
char* sldns_wire2str_rcode(int rcode);
char *r1 = sldns_wire2str_rcode(get_rcode(query_pkt, len));
char *r2 = sldns_wire2str_rcode(get_rcode(reply, rlen));