Wrapper around libGeoIP
A simple cffi-wrapper around some basic functionality of libGeoIP as provided by the debian package http://packages.debian.org/wheezy/libgeoip-dev (original source http://www.maxmind.com). I only implemented the functionality I actually need, and released it since it might be useful for other people. If anybody needs more functionality, patches are welcome!
I tested this under SBCL, Linux x64.
Copyright (C) 2013 (let ((n "Christoph-Simon Senjak")) #| |# (format nil "~A <~C~C~C~C~A>" n (elt n 0) (elt n 10) (elt n 16) #\@ "uxul.de")) This program is free software. It comes without any warranty, to the extent permitted by applicable law. You can redistribute it and/or modify it under the terms of the Do What The Fuck You Want To Public License, Version 2, as published by Sam Hocevar. See http://www.wtfpl.net/ for more details.
Under Debian/Ubuntu, the packages libgeoip-dev and geoip-database should provide the necessary files to get started.
Before we can use the databases, they have to be initialized using
open-databases, which wants two file names, one for the IPv4 and one
fore the IPv6 database. Under Debian/Ubuntu, the following should be
(geoip:open-databases "/usr/share/GeoIP/GeoIP.dat" "/usr/share/GeoIP/GeoIPv6.dat")
After that, you should be able to find Country-Codes for IP-Strings
get-country-code. If it is not found, NIL is returned:
CL-USER> (geoip:get-country-code "220.127.116.11") "DE" CL-USER> (geoip:get-country-code "2a01:4f8:101:281:7ad5:1003:0:1") "DE" CL-USER> (geoip:get-country-code "some clusterfuck") NIL