THC-WarDrive v2.1 is a linux based tool for mapping your city for wavelan networks with a GPS device while you are driving a car or walking through the streets. It is effective and flexible, supporting NMEA GPS devices.
You can download it from the following link: https://packetstormsecurity.com/files/download/25354/wardrive-2.1.tar.gz
Source: https://packetstormsecurity.com/files/25354/wardrive-2.1.tar.gz.html