    # File lib/chef/win32/file.rb, line 90
          def self.readlink(link_name)
            raise Errno::ENOENT, link_name unless ::File.exists?(link_name)
            symlink_file_handle(link_name) do |handle|
              # Go to DeviceIoControl to get the symlink information
              # http://msdn.microsoft.com/en-us/library/windows/desktop/aa364571(v=vs.85).aspx
              reparse_buffer = FFI::MemoryPointer.new(MAXIMUM_REPARSE_DATA_BUFFER_SIZE)
              parsed_size = FFI::Buffer.new(:long).write_long(0)
              if DeviceIoControl(handle, FSCTL_GET_REPARSE_POINT, nil, 0, reparse_buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE, parsed_size, nil) == 0
                Chef::ReservedNames::Win32::Error.raise!
              end

              # Ensure it's a symbolic link
              reparse_buffer = REPARSE_DATA_BUFFER.new(reparse_buffer)
              if reparse_buffer[:ReparseTag] != IO_REPARSE_TAG_SYMLINK
                raise Errno::EACCES, "#{link_name} is not a symlink"
              end

              # Return the link destination (strip off \??\ at the beginning, which is a local filesystem thing)
              link_dest = reparse_buffer.reparse_buffer.substitute_name
              if link_dest =~ /^\\\?\?\\/
                link_dest = link_dest[4..-1]
              end
              link_dest
            end
          end