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#! @PREFIX@/bin/perl
#	$NetBSD: sys2mrtg,v 1.3 2001/06/19 12:32:18 hubertf Exp $


if (@ARGV < 1)
{
	goto usage;
}

$cmd = @ARGV[0];

if ($cmd eq phys)
{
	&vmstat("pages active", "pages free", "bytes per page");
}
if ($cmd eq swap)
{
	&vmstat("swap pages in use", "", "bytes per page");
}
if ($cmd eq pages)
{
	&vmstat("pagein requests", "pageout requests");
}
if ($cmd eq forks)
{
	&vmstat("forks total");
}

if ($cmd eq disks)
{
	if (@ARGV < 2)
	{
		$diskname = "Total"
	}
	else
	{
		$diskname = @ARGV[1];
	}
	$total = 0;
	open(CMDOUT, "iostat -xI|");
	while (<CMDOUT>)
	{
		chop $_;
		if (m|^(\w+)[\t\s]+[\d\.]+[\t\s]+[\d\.]+[\t\s]+[\d\.]+[\t\s]+([\d\.]+)|)
		{
			if ($1 eq $diskname)
			{
				$val = $2 * 1000;
				print "$val\n";
				print "0\n";
				&uptime;
				print "$diskname\n";
				exit(0);
			}
			$total = $total + $2 * 1000;
		}
	}
	print "$total\n";
	print "0\n";
	&end;
}

if ($cmd eq irq)
{
	if (@ARGV < 2)
	{
		$irqname = "Total"
	}
	else
	{
		$irqname = @ARGV[1];
	}
	open(CMDOUT, "vmstat -i|");
	while (<CMDOUT>)
	{
		chop $_;
		if (m|^(\w+)[\t\s]+(-?\d+)|)
		{
			$val = $2;
			if ($val < 0) {
				$val = 0;
			}
			if ($1 eq $irqname)
			{
				print "$val\n";
			}
		}
	}
	print "0\n";
	if (@ARGV < 2)
	{
		&end;
	}
	else
	{
		&uptime;
		print "$irqname\n";
	}
}

if ($cmd eq load)
{
	open(UP, "uptime|");
	while($line = <UP>)
	{
		chop $line;
		if ($line =~ m|^.*up\s+(.+),\s+\d+\suser.*load averages:[\s\t]+([\d\.]+),[\s\t]+[\d\.]+,[\s\t]+[\d\.]+$|)
		{
		printf("%d\n", $2 * 100);
		print "0\n";
		print "$1\n";
  	      }
	}
	close(UP);
	open(HOST, "hostname -s|");
	while (<HOST>)
	{
		print $_;
	}
	close(HOST);
	exit(0);
}

&usage();

sub usage
{
	print STDERR
	    "usage: sys2mrtg (phys|swap|pages|irq [name]|forks|disks[name])|load\n";
	exit(1);
}

sub vmstat
{
	local($f1, $f2,$fmult) = @_;
	$mult=1;
	$val1=0;
	$val2=0;
	open(CMDOUT, "vmstat -s|");
	while (<CMDOUT>)
	{
		chop $_;
		if (m|(\d+)[\t\s]+(.+)|)
		{
			$val = $1;
			$field = $2;
			if ($field eq $fmult)
			{
				$mult = $val;
			}
			if ($field eq $f1)
			{
				$val1 = $val * $mult;
			}
			if ($field eq $f2)
			{
				$val2 = $val * $mult;
			}
		}
	}
	print "$val1\n";
	print "$val2\n";
	&end;
}

sub uptime
{
	open(UP, "uptime|");
	while($line = <UP>)
	{
		chop $line;
		if ($line =~ m|^.*up\s+(.+),\s+\d+\suser.*|)
		{
		print "$1\n";
  	      }
	}
	close(UP);
}


sub end
{
	&uptime;
	open(HOST, "hostname -s|");
	while (<HOST>)
	{
		print $_;
	}
	exit(0);
}