#! /usr/bin/perl -wT
#
# Check_apc_ups - Check APC UPS status via SNMP
# Shamelessly copied from check_breeze.pl
#
# To do:
# - Send SNMP queries directly, instead of forking `snmpget`.
# - Make the status less verbose.  Maybe we can send an "onLine, time
#   remaining: hh:mm:ss" if all is well, and a list of specific problems
#   if something is broken. 

use strict;
use Getopt::Long;
use vars qw($opt_V $opt_h $opt_H $opt_T $opt_t $opt_R $opt_r 
  $opt_L $opt_l $PROGNAME);
use lib "/usr/local/nagios/libexec";
use utils qw(%ERRORS &print_revision &support &usage);

sub print_help ();
sub print_usage ();
sub get_snmp_int_val ($);
sub escalate_exitval ($);

$ENV{'PATH'}='';
$ENV{'BASH_ENV'}=''; 
$ENV{'ENV'}='';

Getopt::Long::Configure('bundling');
GetOptions
	("V"   => \$opt_V, "version"		=> \$opt_V,
	 "h"   => \$opt_h, "help"		=> \$opt_h,
	 "T=s" => \$opt_T, "temp-critical"	=> \$opt_T,
	 "t=s" => \$opt_t, "temp-warning"	=> \$opt_t,
	 "R=s" => \$opt_R, "runtime-critical"	=> \$opt_R,
	 "r=s" => \$opt_r, "runtime-warning"	=> \$opt_r,
	 "L=s" => \$opt_L, "load-critical"	=> \$opt_L,
	 "l=s" => \$opt_l, "load-warning"	=> \$opt_l,
	 "H=s" => \$opt_H, "hostname=s"		=> \$opt_H);

if ($opt_V) {
	print_revision($PROGNAME,'$Revision: 1771 $');
	exit $ERRORS{'OK'};
}

if ($opt_h) {print_help(); exit $ERRORS{'OK'};}

($opt_H) || ($opt_H = shift) || usage("Host name/address not specified\n");
my $host = $1 if ($opt_H =~ /([-.A-Za-z0-9]+)/);
($host) || usage("Invalid host: $opt_H\n");

# Defaults

$opt_R *= 60 * 100 if (defined $opt_R);	# Convert minutes to secs/100
$opt_r *= 60 * 100 if (defined $opt_R);

my $tempcrit    = $opt_T || 60;
my $tempwarn    = $opt_t || 40;
my $runtimecrit = $opt_R || 30 * 60 * 100;     # Secs / 100
my $runtimewarn = $opt_r || 60 * 60 * 100;
my $loadcrit    = $opt_L || 85;
my $loadwarn    = $opt_l || 50;

if ($tempcrit !~ /\d+/) { usage ("Invalid critical temperature threshold.\n"); }
if ($tempwarn !~ /\d+/) { usage ("Invalid critical temperature threshold.\n"); }

if ($runtimecrit !~ /\d+/) {
  usage ("Invalid critical run time threshold.\n");
}
if ($runtimewarn !~ /\d+/) {
  usage ("Invalid warning run time threshold.\n");
}

if ($loadcrit !~ /\d+/ || $loadcrit < 0 || $loadcrit > 100) {
  usage ("Invalid critical load threshold.\n");
}
if ($loadwarn !~ /\d+/ || $loadwarn < 0 || $loadwarn > 100) {
  usage ("Invalid warning load threshold.\n");
}


# APC UPS OIDs
# APC MIBs are available at ftp://ftp.apcftp.com/software/pnetmib/mib
my $upsBasicOutputStatus          = ".1.3.6.1.4.1.318.1.1.1.4.1.1.0";
my $upsBasicBatteryStatus         = ".1.3.6.1.4.1.318.1.1.1.2.1.1.0";
my $upsAdvInputLineFailCause      = ".1.3.6.1.4.1.318.1.1.1.3.2.5.0";
my $upsAdvBatteryTemperature      = ".1.3.6.1.4.1.318.1.1.1.2.2.2.0";
my $upsAdvBatteryRunTimeRemaining = ".1.3.6.1.4.1.318.1.1.1.2.2.3.0";
my $upsAdvBatteryReplaceIndicator = ".1.3.6.1.4.1.318.1.1.1.2.2.4.0";
my $upsAdvOutputLoad              = ".1.3.6.1.4.1.318.1.1.1.4.2.3.0";
my $upsAdvTestDiagnosticsResults  = ".1.3.6.1.4.1.318.1.1.1.7.2.3.0";

my @outputStatVals = (
  [ undef, undef ],					# pad 0
  [ undef, undef ],					# pad 1
  [ "onLine",			$ERRORS{'OK'} ],	# 2
  [ "onBattery",		$ERRORS{'WARNING'} ],	# 3
  [ "onSmartBoost",		$ERRORS{'WARNING'} ],	# 4
  [ "timedSleeping",		$ERRORS{'WARNING'} ],	# 5
  [ "softwareBypass",		$ERRORS{'WARNING'} ],	# 6
  [ "off",			$ERRORS{'CRITICAL'} ],	# 7