def resolve(hostname)
if host = resolve_hostname(hostname)
unless ip_address = resolve_host(host)
fail Resolv::ResolvError, "invalid entry in hosts file: #{host}"
end
return ip_address
end
query = build_query(hostname)
@socket.send query.encode, 0, @server.to_s, DNS_PORT
data, _ = @socket.recvfrom(MAX_PACKET_SIZE)
response = Resolv::DNS::Message.decode(data)
addrs = []
response.each_answer { |name, ttl, value| addrs << value.address if value.respond_to?(:address) }
return if addrs.empty?
return addrs.first if addrs.size == 1
addrs
end