Class: Resolv::DNS::Requester::UnconnectedUDP

Inherits:
Resolv::DNS::Requester show all
Defined in:
lib/resolv.rb

Defined Under Namespace

Classes: Sender

Instance Method Summary collapse

Methods inherited from Resolv::DNS::Requester

#request

Constructor Details

#initialize ⇒ UnconnectedUDP

Returns a new instance of UnconnectedUDP.



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# File 'lib/resolv.rb', line 632

def initialize
  super()
  @sock = UDPSocket.new
  @sock.fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC) if defined? Fcntl::F_SETFD
  DNS.bind_random_port(@sock)
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/resolv.rb', line 653

def close
  super
  @senders.each_key {|service, id|
    DNS.free_request_id(service[0], service[1], id)
  }
end

#recv_reply ⇒ Object 



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# File 'lib/resolv.rb', line 639

def recv_reply
  reply, from = @sock.recvfrom(UDPSize)
  return reply, [from[3],from[1]]
end

#sender(msg, data, host, port = Port) ⇒ Object 



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# File 'lib/resolv.rb', line 644

def sender(msg, data, host, port=Port)
  service = [host, port]
  id = DNS.allocate_request_id(host, port)
  request = msg.encode
  request[0,2] = [id].pack('n')
  return @senders[[service, id]] =
    Sender.new(request, data, @sock, host, port)
end