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<title>request_question (Rev::DNSResolver)</title>
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<pre> <span class="ruby-comment cmt"># File lib/rev/dns_resolver.rb, line 112</span>
112: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">request_question</span>(<span class="ruby-identifier">hostname</span>)
113: <span class="ruby-comment cmt"># Query name</span>
114: <span class="ruby-identifier">message</span> = <span class="ruby-identifier">hostname</span>.<span class="ruby-identifier">split</span>(<span class="ruby-value str">'.'</span>).<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span> [<span class="ruby-identifier">s</span>.<span class="ruby-identifier">size</span>].<span class="ruby-identifier">pack</span>(<span class="ruby-value str">'C'</span>) <span class="ruby-operator"><<</span> <span class="ruby-identifier">s</span> }.<span class="ruby-identifier">join</span> <span class="ruby-operator">+</span> <span class="ruby-value str">"\0"</span>
115:
116: <span class="ruby-comment cmt"># Host address query</span>
117: <span class="ruby-identifier">qtype</span> = <span class="ruby-value">1</span>
118:
119: <span class="ruby-comment cmt"># Internet query</span>
120: <span class="ruby-identifier">qclass</span> = <span class="ruby-value">1</span>
121:
122: <span class="ruby-identifier">message</span> <span class="ruby-operator"><<</span> [<span class="ruby-identifier">qtype</span>, <span class="ruby-identifier">qclass</span>].<span class="ruby-identifier">pack</span>(<span class="ruby-value str">'nn'</span>)
123: <span class="ruby-keyword kw">end</span></pre>
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