sldns_wire2str_header_scan
w += sldns_wire2str_header_scan(d, dlen, s, slen);
int sldns_wire2str_header_scan(uint8_t** data, size_t* data_len, char** str,
w += sldns_wire2str_header_scan(d, dlen, s, slen);
int sldns_wire2str_header_scan(uint8_t** data, size_t* data_len, char** str,