Airodump-ng: Fixed GPS stack overflow (Closes #13 on GitHub).

git-svn-id: http://svn.aircrack-ng.org/trunk@2416 28c6078b-6c39-48e3-add9-af49d547ecab
Aireplay-ng: Fixed tcp_test stack overflow (Closes #14 on GitHub).

git-svn-id: http://svn.aircrack-ng.org/trunk@2417 28c6078b-6c39-48e3-add9-af49d547ecab
Buddy-ng: Fixed segmentation fault (Closes #15 on GitHub).

git-svn-id: http://svn.aircrack-ng.org/trunk@2418 28c6078b-6c39-48e3-add9-af49d547ecab
OSdep: Fixed segmentation fault that happens with a malicious server sending a negative length (Closes #16 on GitHub).

git-svn-id: http://svn.aircrack-ng.org/trunk@2419 28c6078b-6c39-48e3-add9-af49d547ecab