# File resolv.rb, line 675
def initialize(host, port=Port)
super()
@host = host
@port = port
@sock = UDPSocket.new(host.index(':') ? Socket::AF_INET6 : Socket::AF_INET)
DNS.bind_random_port(@sock)
@sock.connect(host, port)
@sock.fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC) if defined? Fcntl::F_SETFD
end
# File resolv.rb, line 700
def close
super
@senders.each_key {|from, id|
DNS.free_request_id(@host, @port, id)
}
end
# File resolv.rb, line 685
def recv_reply
reply = @sock.recv(UDPSize)
return reply, nil
end
# File resolv.rb, line 690
def sender(msg, data, host=@host, port=@port)
unless host == @host && port == @port
raise RequestError.new("host/port don't match: #{host}:#{port}")
end
id = DNS.allocate_request_id(@host, @port)
request = msg.encode
request[0,2] = [id].pack('n')
return @senders[[nil,id]] = Sender.new(request, data, @sock)
end