#!/usr/bin/perl

use strict;
use warnings;
use XML::LibXML;

my $filename = $ARGV[0];

my $parser = XML::LibXML->new();
my $doc    = $parser->parse_file($filename);
my $xc = XML::LibXML::XPathContext->new( $doc->documentElement()  );


foreach my $sections ($xc->findnodes('/HOSTNAME/PATROL/ACL/USERNAME')) {
    my $username    = $sections->findvalue('./@name');
    my $permissions = $sections->findvalue('./PERMISSION');
    my $host        = $sections->findvalue('./HOST');
    print "$username\n";
    print "$permissions\n";
    print "$host\n";
}

##</code><code>##

$sections->findnodes('./PERMISSION');

##</code><code>##

$xc->findnodes('./PERMISSION', $sections);