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#!/usr/bin/perl
#-----------------------------------------------------------------------------
# IPv6 AWStats plugin
# This plugin allow AWStats to make reverse DNS Lookup on IPv6 addresses.
#-----------------------------------------------------------------------------
# Perl Required Modules: Net::IP and Net::DNS
#-----------------------------------------------------------------------------
# <-----
# ENTER HERE THE USE COMMAND FOR ALL REQUIRED PERL MODULES
if (!eval ('require "Net/IP.pm";')) { return $@?"Error: $@":"Error: Need Perl module Net::IP"; }
if (!eval ('require "Net/DNS.pm";')) { return $@?"Error: $@":"Error: Need Perl module Net::DNS"; }
# ----->
use strict;no strict "refs";
#-----------------------------------------------------------------------------
# PLUGIN VARIABLES
#-----------------------------------------------------------------------------
# <-----
# ENTER HERE THE MINIMUM AWSTATS VERSION REQUIRED BY YOUR PLUGIN
# AND THE NAME OF ALL FUNCTIONS THE PLUGIN MANAGE.
my $PluginNeedAWStatsVersion="5.5";
my $PluginHooksFunctions="GetResolvedIP";
# ----->
# <-----
# IF YOUR PLUGIN NEED GLOBAL VARIABLES, THEY MUST BE DECLARED HERE.
use vars qw/
$resolver
/;
# ----->
#-----------------------------------------------------------------------------
# PLUGIN FUNCTION: Init_pluginname
#-----------------------------------------------------------------------------
sub Init_ipv6 {
my $InitParams=shift;
my $checkversion=&Check_Plugin_Version($PluginNeedAWStatsVersion);
# <-----
# ENTER HERE CODE TO DO INIT PLUGIN ACTIONS
debug(" Plugin ipv6: InitParams=$InitParams",1);
$resolver = Net::DNS::Resolver->new;
# ----->
return ($checkversion?$checkversion:"$PluginHooksFunctions");
}
#-----------------------------------------------------------------------------
# PLUGIN FUNCTION: GetResolvedIP_pluginname
# UNIQUE: YES (Only one plugin using this function can be loaded)
# GetResolvedIP is called to resolve an IPv6 address into a host name
#-----------------------------------------------------------------------------
sub GetResolvedIP_ipv6 {
# <-----
my $ip = new Net::IP($_[0]);
my $reverseip= $ip->reverse_ip();
my $query = $resolver->query($reverseip, "PTR");
if (! defined($query)) { return; }
my @result=split(/\s/, ($query->answer)[0]->string);
my $hostindex = 6;
# Host name appears at index 6 on EL8 and EL9.
# On older operating systems, it appears at index 4 at the array's end.
if ($hostindex > $#result) { $hostindex = $#result; }
chop($result[$hostindex]); # Remove the trailing dot of the answer.
return $result[$hostindex];
# ----->
}
1; # Do not remove this line
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