This package was debianized by Henry-Nicolas Tourneur <henry.nicolas@tourneur.be> on
Wed, 23 Dec 2009 15:04:46 +0100.

It was downloaded from http://www.shrubbery.net/tac_plus/

Lol Grant (Cisco System) : up to 4.0.3a not included
Contributors are in CHANGES file

Copyright:

The original cisco code carries the following license/disclaimer/whatever:

/*
   Copyright (c) 1995-1998 by Cisco systems, Inc.

   Permission to use, copy, modify, and distribute this software for
   any purpose and without fee is hereby granted, provided that this
   copyright and permission notice appear on all copies of the
   software and supporting documentation, the name of Cisco Systems,
   Inc. not be used in advertising or publicity pertaining to
   distribution of the program without specific prior permission, and
   notice be given in supporting documentation that modification,
   copying and distribution is by permission of Cisco Systems, Inc.

   Cisco Systems, Inc. makes no representations about the suitability
   of this software for any purpose.  THIS SOFTWARE IS PROVIDED ``AS
   IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
   WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
   FITNESS FOR A PARTICULAR PURPOSE.
*/

As for the bits I have added or contributions I have received from other
folks, they are noted in the CHANGES file post version 4.0.3a.  please
give credit where due.  thanks.

The file do_auth located under /usr/sbin is under GPL3+.
The GPL3 license can be found under /usr/share/common-licenses/GPL-3.