#--
#Copyright 2007 Nominet UK
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
#++

require 'dnsruby'
include Dnsruby

# e.g. ruby trace_dns.rb example.com

# Load DLV key
dlv_key = RR.create("dlv.isc.org. IN DNSKEY 257 3 5 BEAAAAPHMu/5onzrEE7z1egmhg/WPO0+juoZrW3euWEn4MxDCE1+lLy2 brhQv5rN32RKtMzX6Mj70jdzeND4XknW58dnJNPCxn8+jAGl2FZLK8t+ 1uq4W+nnA3qO2+DL+k6BD4mewMLbIYFwe0PG73Te9fZ2kJb56dhgMde5 ymX4BI/oQ+cAK50/xvJv00Frf8kw6ucMTwFlgPe+jnGxPPEmHAte/URk Y62ZfkLoBAADLHQ9IrS2tryAe7mbBZVcOwIeU/Rw/mRx/vwwMCTgNboM QKtUdvNXDrYJDSHZws3xiRXF1Rf+al9UmZfSav/4NWLKjHzpT59k/VSt TDN0YUuWrBNh")
Dnssec.add_dlv_key(dlv_key)

res = Dnsruby::Recursor.new
#TheLog.level = Logger::DEBUG


res.recursion_callback=(Proc.new { |packet|
	
    packet.additional.each { |a| print a.to_s + "\n" }
	
    print(";; Received #{packet.answersize} bytes from #{packet.answerfrom}. Security Level = #{packet.security_level.string}\n\n")
  })

type = ARGV[1]
if (type == nil)
  type = Types.A
end
begin
  ret = res.query(ARGV[0], type)
  print "\nRESPONSE : #{ret}\n"
rescue NXDomain
  print "Domain doesn't exist\n"
end