ns_t_axfr
#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
#define T_AXFR ns_t_axfr
{ns_t_axfr, "AXFR", "zone transfer"},