CIDR Calculator code

[countdrak]

I have a list of IP addresses with the mask bits.

Something of the format A.B.C.D/N I need some code that will give me the ip addresses within that range.

Please see this

http://www.subnet-calculator.com/cidr.php

I can type in the ip and the mask bits and gives me the range.

Does anyone have cf code that does the same thing.

Thanks guys