#!/usr/bin/perl

use strict;

use Net::SNMP qw(ticks_to_time TRANSLATE_NONE);

my $TIMEOUT = 30;
$SIG{ALRM} = sub { print "ERROR: No response\n"; exit 3; };
alarm($TIMEOUT);

my $ip  = shift;
my $community = shift || 'public';
my $port = shift || '161';
my $version = shift || '2';

my ($session, $error) = Net::SNMP->session(
   -hostname  => $ip,
   -community => $community,
   -port      => $port,
   -version   => $version
);

if (!defined($session)) {
   printf("ERROR: %s.\n", $error);
   exit 1;
}

my %hik_snmp_oids=(
'.1.3.6.1.4.1.39165.1.5.0'=>'Number',
'.1.3.6.1.4.1.39165.1.6.0'=>'Vendor',
'.1.3.6.1.4.1.39165.1.1.0'=>'Model',
'.1.3.6.1.4.1.39165.1.3.0'=>'Firmware',
);

my @hik_oids=();
foreach my $oid (keys %hik_snmp_oids) {
push (@hik_oids,$oid);
}

$session->translate(TRANSLATE_NONE);

my $ret = $session->get_request( -varbindlist => [@hik_oids] );
if (!defined($ret)) {
   printf("ERROR: %s.\n", $session->error);
   $session->close;
   exit 2;
}
$session->close;

my $result = '';
foreach my $oid (keys %hik_snmp_oids) {
    $result = $result." ".$hik_snmp_oids{$oid}.": ".$ret->{$oid};
    }
$result =~s/^\s+//g;
$result =~s/\s+$//g;

printf("OK : $result\n");

exit 0;