# File lib/rev/dns_resolver.rb, line 125
125:     def request_message
126:       # Standard query header
127:       message = [2, 1, 0].pack('nCC')
128: 
129:       # One entry
130:       qdcount = 1
131: 
132:       # No answer, authority, or additional records
133:       ancount = nscount = arcount = 0 
134: 
135:       message << [qdcount, ancount, nscount, arcount].pack('nnnn')
136:       message << @question
137:     end