nginx 1.3.10 *) Change: domain names specified in configuration file are now resolved to IPv6 addresses as well as IPv4 ones. *) Change: now if the "include" directive with mask is used on Unix systems, included files are sorted in alphabetical order. *) Change: the "add_header" directive adds headers to 201 responses. *) Feature: the "geo" directive now supports IPv6 addresses in CIDR notation. *) Feature: the "flush" and "gzip" parameters of the "access_log" directive. *) Feature: variables support in the "auth_basic" directive. *) Bugfix: nginx could not be built with the ngx_http_perl_module in some cases. *) Bugfix: a segmentation fault might occur in a worker process if the ngx_http_xslt_module was used. *) Bugfix: nginx could not be built on MacOSX in some cases. Thanks to Piotr Sikora. *) Bugfix: the "limit_rate" directive with high rates might result in truncated responses on 32-bit platforms. Thanks to Alexey Antropov. *) Bugfix: a segmentation fault might occur in a worker process if the "if" directive was used. Thanks to Piotr Sikora. *) Bugfix: a "100 Continue" response was issued with "413 Request Entity Too Large" responses. *) Bugfix: the "image_filter", "image_filter_jpeg_quality" and "image_filter_sharpen" directives might be inherited incorrectly. Thanks to Ian Babrou. *) Bugfix: "crypt_r() failed" errors might appear if the "auth_basic" directive was used on Linux. *) Bugfix: in backup servers handling. Thanks to Thomas Chen. *) Bugfix: proxied HEAD requests might return incorrect response if the "gzip" directive was used.

#!/usr/bin/perl -w

# (c) Andrei Nigmatulin, 2005
#
# this script provided "as is", without any warranties. use it at your own risk.
#
# special thanx to Andrew Sitnikov for perl port
#
# this script converts CSV geoip database (free download at http://www.maxmind.com/app/geoip_country)
# to format, suitable for use with nginx_http_geo module (http://sysoev.ru/nginx)
#
# for example, line with ip range
#
#   "62.16.68.0","62.16.127.255","1041253376","1041268735","RU","Russian Federation"
#
# will be converted to four subnetworks:
#
#   62.16.68.0/22 RU;
#   62.16.72.0/21 RU;
#   62.16.80.0/20 RU;
#   62.16.96.0/19 RU;


use warnings;
use strict;

while( <STDIN> ){
	if (/"[^"]+","[^"]+","([^"]+)","([^"]+)","([^"]+)"/){
		print_subnets($1, $2, $3);
	}
}

sub  print_subnets {
	my ($a1, $a2, $c) = @_;
	my $l;
    while ($a1 <= $a2) {
		for ($l = 0; ($a1 & (1 << $l)) == 0 && ($a1 + ((1 << ($l + 1)) - 1)) <= $a2; $l++){};
		print long2ip($a1) . "/" . (32 - $l) . " " . $c . ";\n";
    	$a1 += (1 << $l);
	}
}

sub long2ip {
	my $ip = shift;

	my $str = 0;

	$str = ($ip & 255);

	$ip >>= 8;
	$str = ($ip & 255).".$str";

	$ip >>= 8;
	$str = ($ip & 255).".$str";

	$ip >>= 8;
	$str = ($ip & 255).".$str";
}