ns_msg_getflag
int ns_msg_getflag(ns_msg, int);
opcode = (ns_opcode) ns_msg_getflag(*handle, ns_f_opcode);
opcode = ns_msg_getflag(handle, ns_f_opcode);
rcode = ns_msg_getflag(handle, ns_f_rcode);
if (ns_msg_getflag(handle, ns_f_qr))
if (ns_msg_getflag(handle, ns_f_aa))
if (ns_msg_getflag(handle, ns_f_tc))
if (ns_msg_getflag(handle, ns_f_rd))
if (ns_msg_getflag(handle, ns_f_ra))
if (ns_msg_getflag(handle, ns_f_z))
if (ns_msg_getflag(handle, ns_f_ad))
if (ns_msg_getflag(handle, ns_f_cd))