diff --git a/contrib/README b/contrib/README
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+++ b/contrib/README
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+
+geo2nginx.pl 	by Andrei Nigmatulin
+
+	The perl script to convert CSV geoip database (free download
+	at http://www.maxmind.com/app/geoip_country) to format, suitable
+	for use with ngx_http_geo_module.
diff --git a/contrib/geo2nginx.pl b/contrib/geo2nginx.pl
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+++ b/contrib/geo2nginx.pl
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+#!/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";
+}