#!/usr/local/bin/php
<?php

/*
*
* Can check if your APC Smart UPS is on batteries or on power.
* Made by Soeren, sa@billetkontoret.dk 29-06-2010
*
*/
         
if(!isset($argv[1]))
        {
        echo "Usage: ./check_apc_on_battery <hostname or IP-address>\n";
        exit(2);
        }

$host = $argv[1];
$query = @snmpget("$host", "public", ".1.3.6.1.4.1.318.1.1.1.4.1.1.0", 1000000);
$snmp = str_replace(array("INTEGER: ", "\""),"",$query);

if ($query)
        {
        if ($snmp == 1)
                {
                $output = "State unknown";
                echo $output;
                exit(1);
                }
        if ($snmp == 2)
                {
                $output = "Power connected";
                echo $output;
                exit(0);
                }
        if ($snmp == 3)
                {
                $query3 = @snmpget("$host", "public", ".1.3.6.1.4.1.318.1.1.1.2.2.1.0", 1000000);
                $charge = str_replace(array("Gauge32: ", "\""),"",$query3);
                $output = "Power lost. Running on batteries. $charge% left.";
                echo $output;
                exit(1);
                }
        if ($snmp == 7)
                {
                $output = "UPS turned off";
                echo $output;
                exit(1);
                }
        if ($snmp == 8)
                {
                $output = "UPS is rebooting";
                echo $output;
                exit(1);
                }
        if ($snmp == 11)
                {
                $output = "UPS is sleeping until power returns";
                echo $output;
                exit(1);
                }

        }
else
        {
        echo "Cannot read data from host.";
        exit(2);
        }
         
?>