NewsFlashStart? Current development sources tree can be download and built by following the steps behind :
svn co http://svn.aircrack-ng.org/trunk aircrack-ng cd aircrack-ng make make install
You can browse the code online here.
Here you will find Aircrack-NG's source code.
All code is distributed under terms of the GNU General Public License.
Whole license text can be viewed on GNU website.
Here is the essential terms of this license :
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.