# File lib/gssapi/lib_gssapi.rb, line 48
      def self.included(base)
        base.class_eval do
          layout :length, :OM_uint32,
            :value, :pointer # pointer of :void

          def length
            self[:length]
          end

          def value
            if(self[:length] == 0)
              nil
            else
              self[:value].read_string(self[:length])
            end
          end
        end
      end