While browsing IDA Pro product
pages at http://www.hex-rays.com/idapro/idadown.htm
I noticed that there are downloads for two libraries that IDA seems to use:
Linux TVision port for the IDA Interface - source code (updated 20/11/2007)
This download is password protected, but seems it is a copy of
Linux TVision - http://tvision.sourceforge.net/ which is under GPL.
Another and more obvious their problem is:
Wingraph v 1.03: source code the Wingraph we use and modified (GPL).
Which is available for actual downloading and is nothing more than VCG library
A Visualization Tool for compiler graphs
Copyright (C) 1993--1995 by Iris Lemke, Georg Sander, and the Compare Consortium
Which is distributed under GPL v2
The sources also contain the following text:
* WinGraph32 - Graph Visualization Program
* Version 1.0
* The WIN32 interface written by Ilfak Guilfanov. (email@example.com)
* This program is under GPL (GNU General Public License)
* It is based on the VCG tool written by Georg Sander and Iris Lemke
Seems that IDA author (Ilfak Guilfanov) does not understand GPL terms.
I notified all related parties, as well as gpl-violations.org on March 21, 2008.
But nothing happened.
The only reply I got was from Linux TVision author, where he says IDA seem to use modified GPL code.