#!/usr/bin/perl
#
# See LICENSE for copyright information
#
# check_3wareraid.pl <host>
#
# NetSaint host script to get the RAID status from a client that is running
# netsaint_statd.
#

require 5.003;
BEGIN { $ENV{PATH} = '/bin' }
use Socket;
use POSIX;

sub usage;

my $TIMEOUT = 15;

my %ERRORS = ('UNKNOWN', '-1',
		'OK', '0',
		'WARNING', '1',
		'CRITICAL', '2');
my $remote = shift || &usage(%ERRORS);
my $warn   = shift || 15;
my $crit   = shift || ($warn + 20);
my $port   = shift || 1040;

my $remoteaddr = inet_aton("$remote");
my $paddr      = sockaddr_in($port, $remoteaddr) || die "Can't create info for connection: #!\n";;
my $proto      = getprotobyname('tcp');

socket(Server, PF_INET, SOCK_STREAM, $proto) || die "Can't create socket: $!";
setsockopt(Server, SOL_SOCKET, SO_REUSEADDR, 1);
connect(Server, $paddr) || die "Can't connect to server: $!";

my $state = "OK";
my $answer = undef;

# Just in case of problems, let's not hang NetSaint
$SIG{'ALRM'} = sub { 
     close(Server);
     select(STDOUT);
     print "No Answer from Client\n";
     exit $ERRORS{"UNKNOWN"};
};
alarm($TIMEOUT);

select(Server);
$| = 1;
print Server "raid\n";
my ($servanswer) = <Server>;
alarm(0);
close(Server);
select(STDOUT);

if ($servanswer =~ m%^Reconstruct%) {
	$state  = "WARNING";
	$answer = $servanswer;
} else {
	if ($servanswer =~ m%^Degraded%) {
		$state  = "CRITICAL";
		$answer = $servanswer;
	} else {
		if ($servanswer =~ m%^Optimal%) {
			$state  = "OK";
			$answer = $servanswer;
		} else {
			$answer = $servanswer;
			$state = "CRITICAL";
		}
	}
}

print $answer;
exit $ERRORS{$state};

sub usage {
	print "Minimum arguments not supplied!\n";
	print "\n";
	print "Perl Check RAID plugin for NetSaint\n";
	print "based upon work done by Charlie Cook & Nick Reinking for Perl Check Users plugin\n";
	print "Copyright (c) 1999 Charlie Cook & Nick Reinking\n";
	print "Copyright (c) 2004 Dan Langille\n";
	print "\n";
	print "Usage: $0 <host>\n";
	print "\n";
	exit $ERRORS{"UNKNOWN"};
}