(Copied from the README.)

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This file is part of class-dump, a utility for examining the
Objective-C segment of Mach-O files.
Copyright (C) 1997-1998, 2000-2001, 2004-2013 Steve Nygard.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Contact
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You may contact the author by:
   e-mail:  nygard at gmail.com