Hi Monks, I want to write a program in perl that pick up wireless network with a wireless network pc card on linux.

Pretty much a pointless exercise; wrap the existing tools (wpa_supplicant, iwlist, iwconfig, ifconfig, dhclient, ping... etc) in perl code.

It would be a monumental effort indeed to replicate or better the functionality of these tools from scratch.

Perhaps it might be a nice idea to encapsulate some of the scanning / interface-control logic in to reusable modules for CPAN... but really, those modules would do best to use the existing command-line utilities.

And i want it to find access point with a Gps receiver.

I'm not sure if I understand you here.

I'm unaware of a wireless protocol which allows an AP to declare GPS-related resources and statistics... but of course, I may just be ignorant on the matter.

If i want to make it look something like aircrack-ng but in perl i would some how have to talk to the driver in perl some how?

That seems like a very ambitious project. Why not just write something that talks to aircrack-ng ?

I am very new when it come to wireless networks.

Here may be a good place to start reading.

-David