Fixed wrong value returned by cidr_to_ipv6 function

Author: ip2location

VERSION

@@ -1 +1 @@
-8.7.1
+8.7.2

ip2location_ruby.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = "ip2location_ruby"
-  s.version = "8.7.1"
+  s.version = "8.7.2"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.require_paths = ["lib"]

lib/ip2location_ruby.rb

@@ -14,7 +14,7 @@
 class Ip2location
   attr_accessor :record_class4, :record_class6, :v4, :file, :db_index, :count, :base_addr, :ipno, :count, :record, :database, :columns, :ip_version, :ipv4databasecount, :ipv4databaseaddr, :ipv4indexbaseaddr, :ipv6databasecount, :ipv6databaseaddr, :ipv6indexbaseaddr, :databaseyear, :databasemonth, :databaseday, :last_err_msg
 
-  VERSION = '8.7.1'
+  VERSION = '8.7.2'
   FIELD_NOT_SUPPORTED = 'NOT SUPPORTED'
   INVALID_IP_ADDRESS = 'INVALID IP ADDRESS'
   INVALID_BIN_DATABASE = 'Incorrect IP2Location BIN file format. Please make sure that you are using the latest IP2Location BIN file.'
@@ -988,7 +988,7 @@ def ipv6_to_cidr(ipfrom_ori, ipto)
 
   def cidr_to_ipv6(cidr)
     if cidr.include? "/"
-      ip_start = IPAddr.new(cidr.to_s.split('/').first).to_i.to_s(16).scan(/.{4}/)
+      ip_start = IPAddr.new(cidr).to_i.to_s(16).scan(/.{4}/)
       ip_start = ip_start[0] + ':' + ip_start[1] + ':' + ip_start[2] + ':' + ip_start[3] + ':' + ip_start[4] + ':' + ip_start[5] + ':' + ip_start[6] + ':' + ip_start[7]
 
       cidr_new = IPAddr.new(cidr)