#!/usr/bin/perl
#
# IPFire HDD Shutdown state reader
#
# This code is distributed under the terms of the GPL
#
# 11.05.2006 Arne Fitzenreiter
#

# begin

my $hdd = @ARGV[0];
my $hdddev = "/dev/$hdd";

my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size,
	$atime, $mtime, $ctime, $blksize, $blocks) = stat($hdddev);

my $major = $rdev >> 8;
my $minor = ($rdev & 0xFF) >> 6;

	open STAT, "/proc/stat";
	my @diskstat = <STAT>;
	close (STAT);
	foreach my $line (@diskstat)
	{
		chomp ($line);
		my @temp = split(/\:\ /,$line);
		if ($temp[1]) {
			my @devicestat = split(/\ /,$temp[1]);
			foreach my $stats (@devicestat)
			{
				chomp ($stats);
				my @fields = split(/\((\d+),(\d+)\):\((\d+),(\d+),(\d+),(\d+),(\d+)/,$stats);
				if ($major eq $fields[1] and $minor eq $fields[2])
				{
					$readwritereq = $fields[3];
				}
			}
		}
	}

	if (! -e "/tmp/hddshutdown-$hdd" ) { 
		print"<B>Disk $hdddev status:</B> unknown"
		
	}

	if ( -e "/tmp/hddshutdown-$hdd" ) {
		open STAT,"/tmp/hddshutdown-$hdd";
		my $lastsleepstate = <STAT>;
		close (STAT);
		my $ftime = localtime((stat("/tmp/hddshutdown-$hdd"))[9]);
		if (! ($lastsleepstate==$readwritereq)) {
			print"<B>Disk $hdddev status: <font color=#FF0000>active</font></B>";
		}
		if ( ($lastsleepstate==$readwritereq)) {
			print"<B>Disk $hdddev status: <font color=#00FF00>standby</font></B> (since $ftime)";
		}
	       
}		
	


# end