BSD-Style Open Source License: You may freely use, modify, and redistribute the hdparm program, as either binary or source, or both. The only condition is that my name and copyright notice remain in the source code as-is. The apt.c file is Copyright (c) 2009 Jan Friesse . You may use/distribute apt.c freely, under the terms of either (your choice) the GNU General Public License version 2, or a BSD style license. Mark Lord (mlord@pobox.com)