p.add_argument("--dnssec",action='store_true',default=False,
help="Set DNSSEC (DO/AD) flags in query (default: false)")
p.add_argument("--debug",action='store_true',default=False,
help="Drop into CLI after request (default: false)")
p.add_argument("domain",metavar="<domain>",
help="Query domain")
p.add_argument("qtype",metavar="<type>",default="A",nargs="?",
help="Query type (default: A)")
args = p.parse_args()
# Construct request
try:
q = DNSRecord(q=DNSQuestion(args.domain,getattr(QTYPE,args.qtype)))
if args.dnssec:
q.add_ar(EDNS0(flags="do",udp_len=4096))
q.header.ad = 1
address,_,port = args.server.partition(':')
port = int(port or 53)
if args.query:
print(";; Sending%s:" % (" (TCP)" if args.tcp else ""))
if args.hex:
print(";; QUERY:",binascii.hexlify(q.pack()).decode())
print(q)
print()
a_pkt = q.send(address,port,tcp=args.tcp)
a = DNSRecord.parse(a_pkt)