ixfr_write_rrs
if(!ixfr_write_rrs(zone, out, fname, data->newsoa, data->newsoa_len,
if(!ixfr_write_rrs(zone, out, fname, data->oldsoa, data->oldsoa_len,
if(!ixfr_write_rrs(zone, out, fname, data->del, data->del_len,
if(!ixfr_write_rrs(zone, out, fname, data->add, data->add_len,