#!/usr/bin/perl -w
# Munin Cisco CPU fetcher
# Espen Holm Nilsen (http://www.gho.no/) 20081021
# Making the community the file name sounded like a bad idea
# So if you have a lot of communities, this can be a real pain, I am sorry!

# To install, just put this script in /usr/share/munin/plugins
# chmod +x /usr/share/munin/plugins/cisco_cpu_
# ln -s /usr/share/munin/plugins/cisco_cpu_ /etc/munin/plugins/cisco_cpu_10.0.0.1

my $community = "public";

if ($ARGV[0] and $ARGV[0] =~ /^\s*autoconf\s*$/i)
{
	print "yes\n";
	exit 0;
}


$0 =~ /cisco_cpu_(.+)*$/;
unless ($name = $1)
{
	exit 2;
}

if ($ARGV[0] and $ARGV[0] =~ /^\s*config\s*$/i)
{
	if(int($name)) {
		print "graph_title CPU Usage for $name\n";
	} else {
		print "graph_title $name CPU usage\n";
	}
	print "graph_args --base 1000 -l 0\n";
	print "graph_vlabel Percent\n";
	print "graph_category Cisco CPU\n";
	print "cpu.label CPU Usage\n";
	exit 0;
}


$cpupercentage = `/usr/bin/snmpget -v1 -c $community $name 1.3.6.1.4.1.9.2.1.56.0`;
chomp($cpupercentage);
$cpupercentage =~ s/SNMPv2-SMI::enterprises.9.2.1.56.0\s=\sINTEGER:\s//g;

print "cpu.value $cpupercentage\n";