Move main pfSense content to src/

1 files changed, 1278 insertions, 0 deletions

diff --git a/src/usr/local/www/status_rrd_graph_img.php b/src/usr/local/www/status_rrd_graph_img.php
new file mode 100644
index 0000000..d28472f
--- /dev/null
+++ b/src/usr/local/www/status_rrd_graph_img.php
@@ -0,0 +1,1278 @@
+<?php
+/* $Id$ */
+/*
+	status_rrd_graph_img.php
+	Part of pfSense
+	Copyright (C) 2009 Seth Mos <seth.mos@dds.nl>
+	Copyright (C) 2013-2015 Electric Sheep Fencing, LP
+	All rights reserved.
+
+	Redistribution and use in source and binary forms, with or without
+	modification, are permitted provided that the following conditions are met:
+
+	1. Redistributions of source code must retain the above copyright notice,
+	   this list of conditions and the following disclaimer.
+
+	2. Redistributions in binary form must reproduce the above copyright
+	   notice, this list of conditions and the following disclaimer in the
+	   documentation and/or other materials provided with the distribution.
+
+	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+	POSSIBILITY OF SUCH DAMAGE.
+*/
+/*
+	pfSense_BUILDER_BINARIES:	/bin/rm	/usr/local/bin/rrdtool
+	pfSense_MODULE:	system
+*/
+
+require_once("globals.inc");
+require_once("guiconfig.inc");
+require_once("filter.inc");
+require_once("shaper.inc");
+require_once("rrd.inc");
+
+global $g;
+
+$pgtitle = array(gettext("System"), gettext("RRD Graphs"), gettext("Image viewer"));
+
+if ($_GET['database']) {
+	$curdatabase = basename($_GET['database']);
+	$curdatabase = str_replace(array("<", ">", ";", "&", "'", '"'), "", htmlspecialchars_decode($curdatabase, ENT_QUOTES | ENT_HTML401));
+} else {
+	$curdatabase = "wan-traffic.rrd";
+}
+
+if ($_GET['style']) {
+	$curstyle = $_GET['style'];
+} else {
+	$curstyle = "inverse";
+}
+
+/* this is used for temp name */
+if ($_GET['graph']) {
+	$curgraph = str_replace(array("<", ">", ";", "&", "'", '"', '.', '/'), "", htmlspecialchars_decode($_GET['graph'], ENT_QUOTES | ENT_HTML401));
+} else {
+	$curgraph = "custom";
+}
+
+$now = time();
+
+if (is_numeric($_GET['start'])) {
+	$start = $_GET['start'];
+} else {
+	$start = $now - (8 * 3600);
+}
+
+if (is_numeric($_GET['end'])) {
+	$end = $_GET['end'];
+} else {
+	$end = $now;
+}
+
+/* this should never happen */
+if ($end < $start) {
+	log_error("start $start is smaller than end $end");
+	$end = $now;
+}
+
+$seconds = $end - $start;
+
+$scales = array();
+$scales[14400] = "MINUTE:5:MINUTE:10:MINUTE:30:0:%H%:%M";
+$scales[57600] = "MINUTE:30:HOUR:1:HOUR:1:0:%H";
+$scales[172800] = "HOUR:1:HOUR:6:HOUR:2:0:%H";
+$scales[691200] = "HOUR:2:HOUR:12:DAY:1:0:%D %d";
+$scales[2764800] = "DAY:1:WEEK:1:WEEK:1:0:Week %W";
+$scales[16070400] = "WEEK:1:MONTH:1:MONTH:1:0:%b";
+$scales[42854400] = "MONTH:1:MONTH:1:MONTH:1:0:%b";
+
+$archives = array();
+$archives[1] = 1200;
+$archives[5] = 720;
+$archives[60] = 1860;
+$archives[1440] = 2284;
+
+$defOptions = array(
+	'to' => 1,
+	'parts' => 1,
+	'precision' => 'minute',
+	'distance' => FALSE,
+	'separator' => ', '
+);
+
+/* always set the average to the highest value as a fallback */
+$average = 1440 * 60;
+foreach ($archives as $rra => $value) {
+	$archivestart = $now - ($rra * 60 * $value);
+	if ($archivestart <= $start) {
+		$average = $rra * 60;
+		break;
+	}
+}
+
+foreach ($scales as $scalelength => $value) {
+	if ($scalelength >= $seconds) {
+		$scale = $value;
+		break;
+	}
+}
+
+// log_error("start $start, end $end, archivestart $archivestart, average $average, scale $scale, seconds $seconds");
+
+/* Deduce a interface if possible and use the description */
+$curif = explode("-", $curdatabase);
+$curif = "$curif[0]";
+$friendly = convert_friendly_interface_to_friendly_descr(strtolower($curif));
+if ($friendly == "") {
+	$friendly = $curif;
+}
+$search = array("-", ".rrd", $curif);
+$replace = array(" :: ", "", $friendly);
+$prettydb = ucwords(str_replace($search, $replace, $curdatabase));
+
+$rrddbpath = "/var/db/rrd/";
+$rrdtmppath = "/tmp/";
+$rrdtool = "/usr/bin/nice -n20 /usr/local/bin/rrdtool";
+$uptime = "/usr/bin/uptime";
+$sed = "/usr/bin/sed";
+
+$havg = timeDiff($average, $defOptions);
+$hperiod = timeDiff($seconds, $defOptions);
+$data = true;
+
+/* Don't leave it up to RRD Tool to select the RRA and resolution to use. */
+/* Specify the RRA and resolution to use per the graph havg value. */
+switch ($havg) {
+	case "1 minute":	$step = 60;		break;
+	case "5 minutes":	$step = 300;	break;
+	case "1 hour":		$step = 3600;	break;
+	case "1 day":		$step = 86400;	break;
+	default:			$step = 0;		break;
+}
+
+$rrddbpath = "/var/db/rrd/";
+chdir($rrddbpath);
+$databases = glob("*.rrd");
+rsort($databases);
+
+/* compare bytes/sec counters, divide bps by 8 */
+read_altq_config();
+if ($altq_list_queues[$curif]) {
+	$altq =& $altq_list_queues[$curif];
+	switch ($altq->GetBwscale()) {
+		case "Gb":
+			$factor = 1024 * 1024 * 1024;
+			break;
+		case "Mb":
+			$factor = 1024 * 1024;
+			break;
+		case "Kb":
+			$factor = 1024;
+			break;
+		case "b":
+		default:
+			$factor = 1;
+			break;
+	}
+	$upstream = (($altq->GetBandwidth()*$factor)/8);
+	if ($upstream != 0) {
+		$downstream = $upstream; /* XXX: Ugly hack */
+	} else {
+		$downstream = $upstream = 12500000;
+	}
+	$upif = $curif;
+	$downif = "lan"; /* XXX should this be set to something else?! */
+} else {
+	$altq = null;
+	$downstream = 12500000;
+	$upstream = 12500000;
+	$upif = "wan";
+	$downif = "lan";
+}
+
+$speedlimit = ($upstream + $downstream);
+
+/* Set default colors explicitly, the theme can then override them below.
+   This prevents missing colors in themes from crashing the graphs. */
+/* Traffic Outbound		Out-P-4,  Out-B-4,  Out-P-6,  Out-B-6 */
+$colortrafficup		= array('666666', 'CCCCCC', '2217AA', '625AE7');
+
+/* Traffic Inbound		In-P-4,   In-B-4,    In-P-6,  In-B-6 */
+$colortrafficdown	= array('990000', 'CC0000', 'FFC875', 'FF9900');
+
+/* Packets Outbound		Out-P-4,  Out-B-4,  Out-P-6,  Out-B-6 */
+$colorpacketsup		= array('666666', 'CCCCCC', '2217AA', '625AE7');
+
+/* Packets Inbound		In-P-4,   In-B-4,    In-P-6,  In-B-6 */
+$colorpacketsdown	= array('990000', 'CC0000', 'FFC875', 'FF9900');
+
+/* 95th Percentile Lines	Out,      In */
+$colortraffic95		= array('660000', 'FF0000');
+
+/* State Table			pfrate,  pfstates, pfnat,  srcip,   dstip */
+$colorstates		= array('00AA00', '990000', '0000FF', '000000', 'DD9B00');
+
+/* Processor Usage		user,    nice,    system,  int,     processes */
+$colorprocessor		= array('00AA00', '990000', '0000FF', 'DD9B00', '000000');
+
+/* Memory Usage			active,  inact,   free,    cache,   wire */
+$colormemory		= array('00AA00', '990000', '0000FF', '666666', 'DD9B00');
+
+/* MBUF Usage			current, cache,   total,   max */
+$colormbuf		= array('0080FF', '00E344', 'FF0000', '000000');
+
+/* Traffic Shaper Queues	q1,      q2,      q3,      q4,      q5,      q6,      q7,      q8,      q9 */
+$colorqueuesup		= array('000000', '7B0000', '0080FF', '00E344', 'FF0000', '2217AA', 'FFC875', 'FF9900', 'CC0000');
+$colorqueuesdown	= array('000000', '7B7B7B', '999999', 'BBBBBB', 'CCCCCC', 'D9D9D9', 'EEEEEE', 'FFFFFF', 'CCCCCC');
+
+$colorqueuesdropup	= array('000000', '7B0000', '0080FF', '00E344', 'FF0000', '2217AA', 'FFC875', 'FF9900', 'CC0000');
+$colorqueuesdropdown	= array('000000', '7B7B7B', '999999', 'BBBBBB', 'CCCCCC', 'D9D9D9', 'EEEEEE', 'FFFFFF', 'CCCCCC');
+
+/* Quality Graph Delay	>420,    180-420, 60-180,  20-60,   <20,     Delay Avg */
+$colorqualityrtt	= array('990000', 'a83c3c', 'b36666', 'bd9090', 'cccccc', '000000');
+/* Quality Graph Loss */
+$colorqualityloss	= 'ee0000';
+
+/* Wireless Graph		SNR,     Rate,    Channel*/
+/* Cellular Graph		RSSI,     */
+$colorwireless		= array('333333', 'a83c3c', '999999');
+
+/* SPAMD Times			min area, avg area, max area, Time line */
+$colorspamdtime		= array('DDDDFF', 'AAAAFF', 'DDDDFF', '000066');
+/* SPAMD Connections		max area,   min area,   min line,   max line,   avg line */
+$colorspamdconn		= array('AA00BB', 'FFFFFF', '660088', 'FFFF88', '006600');
+
+/* OpenVPN Users		Online Users */
+$colorvpnusers		= array('990000');
+
+/* NTPD stats			offset, clk jit,   sys jit,   wander */
+$colorntpd		= array('0080FF', '00E344', 'FF0000', '000000');
+
+/* Captive Portal Total Users	Total Users */
+/* Captive Portal Concurrent	Concurrent Users */
+$colorcaptiveportalusers = array('990000');
+
+/* select theme colors if the inclusion file exists */
+$rrdcolors = "{$g['www_path']}/themes/{$g['theme']}/rrdcolors.inc.php";
+if (file_exists($rrdcolors)) {
+	include($rrdcolors);
+} else {
+	log_error(sprintf(gettext("rrdcolors.inc.php for theme %s does not exist, using defaults!"), $g['theme']));
+}
+
+switch ($curstyle) {
+	case "absolute":
+		$multiplier = 1;
+		$AREA = "LINE1";
+		break;
+	default:
+		$multiplier = -1;
+		$AREA = "AREA";
+		break;
+}
+
+function timeDiff($time, $opt = array()) {
+	// The default values
+	$defOptions = array(
+		'to' => 0,
+		'parts' => 1,
+		'precision' => 'second',
+		'distance' => TRUE,
+		'separator' => ', '
+	);
+	$opt = array_merge($defOptions, $opt);
+	// Default to current time if no to point is given
+	(!$opt['to']) && ($opt['to'] = time());
+	// Init an empty string
+	$str = '';
+	// To or From computation
+	$diff = ($opt['to'] > $time) ? $opt['to'] - $time : $time - $opt['to'];
+	// An array of label => periods of seconds;
+	$periods = array(
+		'decade' => 315569260,
+		'year' => 31539600,
+		'month' => 2629744,
+		'week' => 604800,
+		'day' => 86400,
+		'hour' => 3600,
+		'minute' => 60,
+		'second' => 1
+	);
+	// 31539600, 31556926, 31622400
+	// Round to precision
+	if ($opt['precision'] != 'second') {
+		$diff = round(($diff / $periods[$opt['precision']])) * $periods[$opt['precision']];
+	}
+	// Report the value is 'less than 1 ' precision period away
+	(0 == $diff) && ($str = 'less than 1 ' . $opt['precision']);
+	// Loop over each period
+	foreach ($periods as $label => $value) {
+		// Stitch together the time difference string
+		(($x = round($diff / $value)) && $opt['parts']--) && $str .= ($str ? $opt['separator'] : '') . ($x .' '. $label. ($x > 1 ? 's' : ''));
+		// Stop processing if no more parts are going to be reported.
+		if ($opt['parts'] == 0 || $label == $opt['precision']) {
+			break;
+		}
+		// Get ready for the next pass
+		$diff -= $x * $value;
+	}
+	$opt['distance'] && $str .= ($str && $opt['to'] >= $time) ? ' ago' : ' away';
+	return $str;
+}
+
+
+if ((strstr($curdatabase, "-traffic.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for traffic stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step --vertical-label \"bits/sec\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:$curif-in_bytes_pass=$rrddbpath$curdatabase:inpass:AVERAGE:step=$step ";
+	$graphcmd .= "DEF:$curif-out_bytes_pass=$rrddbpath$curdatabase:outpass:AVERAGE:step=$step ";
+	$graphcmd .= "DEF:$curif-in_bytes_block=$rrddbpath$curdatabase:inblock:AVERAGE:step=$step ";
+	$graphcmd .= "DEF:$curif-out_bytes_block=$rrddbpath$curdatabase:outblock:AVERAGE:step=$step ";
+
+	$graphcmd .= "DEF:$curif-in6_bytes_pass=$rrddbpath$curdatabase:inpass6:AVERAGE:step=$step ";
+	$graphcmd .= "DEF:$curif-out6_bytes_pass=$rrddbpath$curdatabase:outpass6:AVERAGE:step=$step ";
+	$graphcmd .= "DEF:$curif-in6_bytes_block=$rrddbpath$curdatabase:inblock6:AVERAGE:step=$step ";
+	$graphcmd .= "DEF:$curif-out6_bytes_block=$rrddbpath$curdatabase:outblock6:AVERAGE:step=$step ";
+
+	$graphcmd .= "CDEF:\"$curif-in_bits_pass=$curif-in_bytes_pass,8,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out_bits_pass=$curif-out_bytes_pass,8,*\" ";
+	$graphcmd .= "CDEF:\"$curif-in_bits_block=$curif-in_bytes_block,8,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out_bits_block=$curif-out_bytes_block,8,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-in6_bits_pass=$curif-in6_bytes_pass,8,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_bits_pass=$curif-out6_bytes_pass,8,*\" ";
+	$graphcmd .= "CDEF:\"$curif-in6_bits_block=$curif-in6_bytes_block,8,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_bits_block=$curif-out6_bytes_block,8,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-in_bytes=$curif-in_bytes_pass,$curif-in_bytes_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out_bytes=$curif-out_bytes_pass,$curif-out_bytes_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-in_bits=$curif-in_bits_pass,$curif-in_bits_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out_bits=$curif-out_bits_pass,$curif-out_bits_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-in6_bytes=$curif-in6_bytes_pass,$curif-in6_bytes_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_bytes=$curif-out6_bytes_pass,$curif-out6_bytes_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-in6_bits=$curif-in6_bits_pass,$curif-in6_bits_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_bits=$curif-out6_bits_pass,$curif-out6_bits_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bits_io=$curif-in_bits,$curif-out_bits,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out_bits_block_neg=$curif-out_bits_block,$multiplier,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out_bits_pass_neg=$curif-out_bits_pass,$multiplier,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bits6_io=$curif-in6_bits,$curif-out6_bits,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_bits_block_neg=$curif-out6_bits_block,$multiplier,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_bits_pass_neg=$curif-out6_bits_pass,$multiplier,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_in_pass=$curif-in_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-in_bytes_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out_pass=$curif-out_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-out_bytes_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_in_block=$curif-in_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-in_bytes_block,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out_block=$curif-out_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-out_bytes_block,IF,$average,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_in6_pass=$curif-in6_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-in6_bytes_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out6_pass=$curif-out6_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-out6_bytes_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_in6_block=$curif-in6_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-in6_bytes_block,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out6_block=$curif-out6_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-out6_bytes_block,IF,$average,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_pass=$curif-bytes_in_pass,$curif-bytes_out_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_block=$curif-bytes_in_block,$curif-bytes_out_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_pass6=$curif-bytes_in6_pass,$curif-bytes_out6_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_block6=$curif-bytes_in6_block,$curif-bytes_out6_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_in_t_pass=$curif-in_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-in_bytes_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out_t_pass=$curif-out_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-out_bytes_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_in_t_block=$curif-in_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-in_bytes_block,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out_t_block=$curif-out_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-out_bytes_block,IF,$seconds,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_in6_t_pass=$curif-in6_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-in6_bytes_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out6_t_pass=$curif-out6_bytes_pass,0,$speedlimit,LIMIT,UN,0,$curif-out6_bytes_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_in6_t_block=$curif-in6_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-in6_bytes_block,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_out6_t_block=$curif-out6_bytes_block,0,$speedlimit,LIMIT,UN,0,$curif-out6_bytes_block,IF,$seconds,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_t_pass=$curif-bytes_in_t_pass,$curif-bytes_out_t_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_t_block=$curif-bytes_in_t_block,$curif-bytes_out_t_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_t=$curif-bytes_t_pass,$curif-bytes_t_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-bytes_t_pass6=$curif-bytes_in6_t_pass,$curif-bytes_out6_t_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_t_block6=$curif-bytes_in6_t_block,$curif-bytes_out6_t_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-bytes_t6=$curif-bytes_t_pass6,$curif-bytes_t_block6,+\" ";
+	$graphcmd .= "VDEF:\"$curif-in_bits_95=$curif-in_bits,95,PERCENT\" ";
+	$graphcmd .= "CDEF:\"$curif-out_bits_mul=$curif-out_bits,$multiplier,*\" ";
+	$perc = $multiplier > 0 ? "95" : "5";
+	$graphcmd .= "VDEF:\"$curif-out_bits_95=$curif-out_bits_mul,{$perc},PERCENT\" ";
+
+	$graphcmd .= "AREA:\"$curif-in_bits_block#{$colortrafficdown[1]}:$curif-in-block\" ";
+	$graphcmd .= "AREA:\"$curif-in_bits_pass#{$colortrafficdown[0]}:$curif-in-pass:STACK\" ";
+	$graphcmd .= "AREA:\"$curif-in6_bits_block#{$colortrafficdown[3]}:$curif-in6-block:STACK\" ";
+	$graphcmd .= "AREA:\"$curif-in6_bits_pass#{$colortrafficdown[2]}:$curif-in6-pass:STACK\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+
+	$graphcmd .= "{$AREA}:\"$curif-out_bits_block_neg#{$colortrafficup[1]}:$curif-out-block\" ";
+	$graphcmd .= "{$AREA}:\"$curif-out_bits_pass_neg#{$colortrafficup[0]}:$curif-out-pass:STACK\" ";
+	$graphcmd .= "{$AREA}:\"$curif-out6_bits_block_neg#{$colortrafficup[3]}:$curif-out6-block:STACK\" ";
+	$graphcmd .= "{$AREA}:\"$curif-out6_bits_pass_neg#{$colortrafficup[2]}:$curif-out6-pass:STACK\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "HRULE:\"$curif-in_bits_95#{$colortraffic95[1]}:$curif-in (95%)\" ";
+	$graphcmd .= "HRULE:\"$curif-out_bits_95#{$colortraffic95[0]}:$curif-out (95%)\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t maximum\t    average\t\t current\t    period\t   95th percentile\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv4 in-pass\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_bits_pass:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_bits_pass:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_bits_pass:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_in_t_pass:AVERAGE:%7.2lf %sB i\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_bits_95:%7.2lf %sb/s\" ";
+
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv4 out-pass\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_bits_pass:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_bits_pass:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_bits_pass:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_out_t_pass:AVERAGE:%7.2lf %sB o\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_bits_95:%7.2lf %sb/s\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv4 in-block\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_bits_block:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_bits_block:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_bits_block:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_in_t_block:AVERAGE:%7.2lf %sB i\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv4 out-block\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_bits_block:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_bits_block:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_bits_block:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_out_t_block:AVERAGE:%7.2lf %sB o\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv6 in-pass\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_bits_pass:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_bits_pass:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_bits_pass:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_in6_t_pass:AVERAGE:%7.2lf %sB i\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv6 out-pass\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_bits_pass:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_bits_pass:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_bits_pass:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_out6_t_pass:AVERAGE:%7.2lf %sB o\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv6 in-block\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_bits_block:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_bits_block:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_bits_block:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_in6_t_block:AVERAGE:%7.2lf %sB i\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"IPv6 out-block\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_bits_block:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_bits_block:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_bits_block:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"$curif-bytes_out6_t_block:AVERAGE:%7.2lf %sB o\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif (strstr($curdatabase, "-throughput.rrd")) {
+	/* define graphcmd for throughput stats */
+	/* this gathers all interface statistics, the database does not actually exist */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"bits/sec\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+
+	$iflist = get_configured_interface_list();
+	$g = 0;
+	$operand = "";
+	$comma = "";
+	$graphtputbip = "";
+	$graphtputbop = "";
+	$graphtputbtp = "";
+	$graphtputbib = "";
+	$graphtputbob = "";
+	$graphtputbtb = "";
+	$graphtputbyip = "";
+	$graphtputbyop = "";
+	$graphtputbytp = "";
+	$graphtputbyib = "";
+	$graphtputbyob = "";
+	$graphtputbytb = "";
+	foreach ($iflist as $ifname) {
+		/* collect all interface stats */
+		$graphcmd .= "DEF:\"{$ifname}-in_bytes_pass={$rrddbpath}{$ifname}-traffic.rrd:inpass:AVERAGE:step=$step\" ";
+		$graphcmd .= "DEF:\"{$ifname}-out_bytes_pass={$rrddbpath}{$ifname}-traffic.rrd:outpass:AVERAGE:step=$step\" ";
+		$graphcmd .= "DEF:\"{$ifname}-in_bytes_block={$rrddbpath}{$ifname}-traffic.rrd:inblock:AVERAGE:step=$step\" ";
+		$graphcmd .= "DEF:\"{$ifname}-out_bytes_block={$rrddbpath}{$ifname}-traffic.rrd:outblock:AVERAGE:step=$step\" ";
+
+		$graphcmd .= "CDEF:\"{$ifname}-in_bytes={$ifname}-in_bytes_pass,{$ifname}-in_bytes_block,+\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-out_bytes={$ifname}-out_bytes_pass,{$ifname}-out_bytes_block,+\" ";
+
+		$graphcmd .= "CDEF:\"{$ifname}-in_bits_pass={$ifname}-in_bytes_pass,8,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-out_bits_pass={$ifname}-out_bytes_pass,8,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bits_io_pass={$ifname}-in_bits_pass,{$ifname}-out_bits_pass,+\" ";
+
+		$graphcmd .= "CDEF:\"{$ifname}-in_bits_block={$ifname}-in_bytes_block,8,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-out_bits_block={$ifname}-out_bytes_block,8,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bits_io_block={$ifname}-in_bits_block,{$ifname}-out_bits_block,+\" ";
+
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_in_pass={$ifname}-in_bytes_pass,0,$speedlimit,LIMIT,UN,0,{$ifname}-in_bytes_pass,IF,$average,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_out_pass={$ifname}-out_bytes_pass,0,$speedlimit,LIMIT,UN,0,{$ifname}-out_bytes_pass,IF,$average,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_in_block={$ifname}-in_bytes_block,0,$speedlimit,LIMIT,UN,0,{$ifname}-in_bytes_block,IF,$average,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_out_block={$ifname}-out_bytes_block,0,$speedlimit,LIMIT,UN,0,{$ifname}-out_bytes_block,IF,$average,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_pass={$ifname}-bytes_in_pass,{$ifname}-bytes_out_pass,+\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_block={$ifname}-bytes_in_pass,{$ifname}-bytes_out_block,+\" ";
+
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_in_t_pass={$ifname}-in_bytes,0,$speedlimit,LIMIT,UN,0,{$ifname}-in_bytes_pass,IF,$seconds,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_in_t_block={$ifname}-in_bytes,0,$speedlimit,LIMIT,UN,0,{$ifname}-in_bytes_block,IF,$seconds,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_out_t_pass={$ifname}-out_bytes,0,$speedlimit,LIMIT,UN,0,{$ifname}-out_bytes_pass,IF,$seconds,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_out_t_block={$ifname}-out_bytes,0,$speedlimit,LIMIT,UN,0,{$ifname}-out_bytes_block,IF,$seconds,*\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_t_pass={$ifname}-bytes_in_t_pass,{$ifname}-bytes_out_t_pass,+\" ";
+		$graphcmd .= "CDEF:\"{$ifname}-bytes_t_block={$ifname}-bytes_in_t_block,{$ifname}-bytes_out_t_block,+\" ";
+		if ($g > 0) {
+			$operand .= ",+";
+			$comma = ",";
+		}
+		$graphtputbip .= "{$comma}{$ifname}-in_bits_pass";
+		$graphtputbop .= "{$comma}{$ifname}-out_bits_pass";
+		$graphtputbtp .= "{$comma}{$ifname}-bits_io_pass";
+		$graphtputbib .= "{$comma}{$ifname}-in_bits_block";
+		$graphtputbob .= "{$comma}{$ifname}-out_bits_block";
+		$graphtputbtb .= "{$comma}{$ifname}-bits_io_block";
+		$graphtputbyip .= "{$comma}{$ifname}-bytes_in_t_pass";
+		$graphtputbyop .= "{$comma}{$ifname}-bytes_out_t_pass";
+		$graphtputbyib .= "{$comma}{$ifname}-bytes_in_t_block";
+		$graphtputbyob .= "{$comma}{$ifname}-bytes_out_t_block";
+		$graphtputbytp .= "{$comma}{$ifname}-bytes_t_pass";
+		$graphtputbytb .= "{$comma}{$ifname}-bytes_t_block";
+		$g++;
+	}
+	$graphcmd .= "CDEF:\"tput-in_bits_pass={$graphtputbip}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-out_bits_pass={$graphtputbop}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-bits_io_pass={$graphtputbtp}{$operand}\" ";
+
+	$graphcmd .= "CDEF:\"tput-in_bits_block={$graphtputbib}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-out_bits_block={$graphtputbob}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-bits_io_block={$graphtputbtb}{$operand}\" ";
+
+	$graphcmd .= "CDEF:\"tput-out_bits_pass_neg=tput-out_bits_pass,$multiplier,*\" ";
+	$graphcmd .= "CDEF:\"tput-out_bits_block_neg=tput-out_bits_block,$multiplier,*\" ";
+
+	$graphcmd .= "CDEF:\"tput-bytes_in_t_pass={$graphtputbyip}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-bytes_out_t_pass={$graphtputbyop}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-bytes_t_pass={$graphtputbytp}{$operand}\" ";
+
+	$graphcmd .= "CDEF:\"tput-bytes_in_t_block={$graphtputbyib}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-bytes_out_t_block={$graphtputbyob}{$operand}\" ";
+	$graphcmd .= "CDEF:\"tput-bytes_t_block={$graphtputbytb}{$operand}\" ";
+
+	$graphcmd .= "AREA:\"tput-in_bits_block#{$colortrafficdown[0]}:in-block \" ";
+	$graphcmd .= "AREA:\"tput-in_bits_pass#{$colortrafficdown[1]}:in-pass \" ";
+
+	$graphcmd .= "{$AREA}:\"tput-out_bits_block_neg#{$colortrafficup[1]}:out-block \" ";
+	$graphcmd .= "{$AREA}:\"tput-out_bits_pass_neg#{$colortrafficup[0]}:out-pass \" ";
+
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t  maximum       average       current        period\\n\" ";
+	$graphcmd .= "COMMENT:\"in-pass\t\" ";
+	$graphcmd .= "GPRINT:\"tput-in_bits_pass:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-in_bits_pass:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-in_bits_pass:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-bytes_in_t_pass:AVERAGE:%7.2lf %sB i\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"out-pass\t\" ";
+	$graphcmd .= "GPRINT:\"tput-out_bits_pass:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-out_bits_pass:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-out_bits_pass:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-bytes_out_t_pass:AVERAGE:%7.2lf %sB o\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"in-block\t\" ";
+	$graphcmd .= "GPRINT:\"tput-in_bits_block:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-in_bits_block:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-in_bits_block:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-bytes_in_t_block:AVERAGE:%7.2lf %sB i\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"out-block\t\" ";
+	$graphcmd .= "GPRINT:\"tput-out_bits_block:MAX:%7.2lf %sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-out_bits_block:AVERAGE:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-out_bits_block:LAST:%7.2lf %Sb/s\" ";
+	$graphcmd .= "GPRINT:\"tput-bytes_out_t_block:AVERAGE:%7.2lf %sB o\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-packets.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for packets stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"packets/sec\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"$curif-in_pps_pass=$rrddbpath$curdatabase:inpass:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-out_pps_pass=$rrddbpath$curdatabase:outpass:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-in_pps_block=$rrddbpath$curdatabase:inblock:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-out_pps_block=$rrddbpath$curdatabase:outblock:AVERAGE:step=$step\" ";
+
+	$graphcmd .= "DEF:\"$curif-in6_pps_pass=$rrddbpath$curdatabase:inpass6:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-out6_pps_pass=$rrddbpath$curdatabase:outpass6:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-in6_pps_block=$rrddbpath$curdatabase:inblock6:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-out6_pps_block=$rrddbpath$curdatabase:outblock6:AVERAGE:step=$step\" ";
+
+	$graphcmd .= "CDEF:\"$curif-in_pps=$curif-in_pps_pass,$curif-in_pps_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out_pps=$curif-out_pps_pass,$curif-out_pps_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out_pps_pass_neg=$curif-out_pps_pass,$multiplier,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out_pps_block_neg=$curif-out_pps_block,$multiplier,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-in6_pps=$curif-in6_pps_pass,$curif-in6_pps_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_pps=$curif-out6_pps_pass,$curif-out6_pps_block,+\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_pps_pass_neg=$curif-out6_pps_pass,$multiplier,*\" ";
+	$graphcmd .= "CDEF:\"$curif-out6_pps_block_neg=$curif-out6_pps_block,$multiplier,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_in_pass=$curif-in_pps_pass,0,12500000,LIMIT,UN,0,$curif-in_pps_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out_pass=$curif-out_pps_pass,0,12500000,LIMIT,UN,0,$curif-out_pps_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_in_block=$curif-in_pps_block,0,12500000,LIMIT,UN,0,$curif-in_pps_block,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out_block=$curif-out_pps_block,0,12500000,LIMIT,UN,0,$curif-out_pps_block,IF,$average,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_in6_pass=$curif-in6_pps_pass,0,12500000,LIMIT,UN,0,$curif-in6_pps_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out6_pass=$curif-out6_pps_pass,0,12500000,LIMIT,UN,0,$curif-out6_pps_pass,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_in6_block=$curif-in6_pps_block,0,12500000,LIMIT,UN,0,$curif-in6_pps_block,IF,$average,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out6_block=$curif-out6_pps_block,0,12500000,LIMIT,UN,0,$curif-out6_pps_block,IF,$average,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_io=$curif-in_pps,$curif-out_pps,+\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_pass=$curif-pps_in_pass,$curif-pps_out_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_block=$curif-pps_in_block,$curif-pps_out_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_io6=$curif-in6_pps,$curif-out6_pps,+\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_pass6=$curif-pps_in6_pass,$curif-pps_out6_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_block6=$curif-pps_in6_block,$curif-pps_out6_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_in_t_pass=$curif-in_pps_pass,0,12500000,LIMIT,UN,0,$curif-in_pps_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out_t_pass=$curif-out_pps_pass,0,12500000,LIMIT,UN,0,$curif-out_pps_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_in_t_block=$curif-in_pps_block,0,12500000,LIMIT,UN,0,$curif-in_pps_block,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out_t_block=$curif-out_pps_block,0,12500000,LIMIT,UN,0,$curif-out_pps_block,IF,$seconds,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_in6_t_pass=$curif-in6_pps_pass,0,12500000,LIMIT,UN,0,$curif-in6_pps_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out6_t_pass=$curif-out6_pps_pass,0,12500000,LIMIT,UN,0,$curif-out6_pps_pass,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_in6_t_block=$curif-in6_pps_block,0,12500000,LIMIT,UN,0,$curif-in6_pps_block,IF,$seconds,*\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_out6_t_block=$curif-out6_pps_block,0,12500000,LIMIT,UN,0,$curif-out6_pps_block,IF,$seconds,*\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_t_pass=$curif-pps_in_t_pass,$curif-pps_out_t_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_t_block=$curif-pps_in_t_block,$curif-pps_out_t_block,+\" ";
+
+	$graphcmd .= "CDEF:\"$curif-pps_t_pass6=$curif-pps_in6_t_pass,$curif-pps_out6_t_pass,+\" ";
+	$graphcmd .= "CDEF:\"$curif-pps_t_block6=$curif-pps_in6_t_block,$curif-pps_out6_t_block,+\" ";
+
+	$graphcmd .= "AREA:\"$curif-in_pps_block#{$colorpacketsdown[1]}:$curif-in-block\" ";
+	$graphcmd .= "AREA:\"$curif-in_pps_pass#{$colorpacketsdown[0]}:$curif-in-pass:STACK\" ";
+	$graphcmd .= "AREA:\"$curif-in6_pps_block#{$colorpacketsdown[3]}:$curif-in6-block:STACK\" ";
+	$graphcmd .= "AREA:\"$curif-in6_pps_pass#{$colorpacketsdown[2]}:$curif-in6-pass:STACK\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "$AREA:\"$curif-out_pps_block_neg#{$colorpacketsup[1]}:$curif-out-block\" ";
+	$graphcmd .= "$AREA:\"$curif-out_pps_pass_neg#{$colorpacketsup[0]}:$curif-out-pass:STACK\" ";
+	$graphcmd .= "$AREA:\"$curif-out6_pps_block_neg#{$colorpacketsup[3]}:$curif-out6-block:STACK\" ";
+	$graphcmd .= "$AREA:\"$curif-out6_pps_pass_neg#{$colorpacketsup[2]}:$curif-out6-pass:STACK\" ";
+
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t  maximum\t\t average\t     current\t    period\\n\" ";
+	$graphcmd .= "COMMENT:\"in-pass\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_pps_pass:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_pps_pass:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_pps_pass:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_in_t_pass:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"out-pass\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_pps_pass:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_pps_pass:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_pps_pass:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_out_t_pass:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"in-block\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_pps_block:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_pps_block:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in_pps_block:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_in_t_block:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"out-block\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_pps_block:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_pps_block:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out_pps_block:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_out_t_block:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"in-pass6\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_pps_pass:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_pps_pass:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_pps_pass:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_in6_t_pass:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"out-pass6\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_pps_pass:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_pps_pass:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_pps_pass:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_out6_t_pass:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"in-block6\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_pps_block:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_pps_block:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-in6_pps_block:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_in6_t_block:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"out-pass6\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_pps_block:MAX:%7.2lf %s pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_pps_block:AVERAGE:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-out6_pps_block:LAST:%7.2lf %S pps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pps_out6_t_block:AVERAGE:%7.2lf %s pkts\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-wireless.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for packets stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"snr/channel/rate\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"$curif-snr=$rrddbpath$curdatabase:snr:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-rate=$rrddbpath$curdatabase:rate:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-channel=$rrddbpath$curdatabase:channel:AVERAGE:step=$step\" ";
+	$graphcmd .= "LINE2:\"$curif-snr#{$colorwireless[0]}:$curif-snr\" ";
+	$graphcmd .= "LINE2:\"$curif-rate#{$colorwireless[1]}:$curif-rate\" ";
+	$graphcmd .= "LINE2:\"$curif-channel#{$colorwireless[2]}:$curif-channel\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t   maximum\t\t average\t     current\\n\" ";
+	$graphcmd .= "COMMENT:\"SNR\t\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-snr:MAX:%7.2lf dBi  \" ";
+	$graphcmd .= "GPRINT:\"$curif-snr:AVERAGE:%7.2lf dBi  \" ";
+	$graphcmd .= "GPRINT:\"$curif-snr:LAST:%7.2lf dBi\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"RATE\t\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-rate:MAX:%7.2lf Mb   \" ";
+	$graphcmd .= "GPRINT:\"$curif-rate:AVERAGE:%7.2lf Mb   \" ";
+	$graphcmd .= "GPRINT:\"$curif-rate:LAST:%7.2lf Mb\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Channel\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-channel:MAX:%7.2lf      \" ";
+	$graphcmd .= "GPRINT:\"$curif-channel:AVERAGE:%7.2lf      \" ";
+	$graphcmd .= "GPRINT:\"$curif-channel:LAST:%7.2lf\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-vpnusers.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for vpn users stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"users\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"$curif-users=$rrddbpath$curdatabase:users:AVERAGE:step=$step\" ";
+	$graphcmd .= "LINE2:\"$curif-users#{$colorvpnusers[0]}:$curif-users\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t    maximum\t\t average\t     current\\n\" ";
+	$graphcmd .= "COMMENT:\"Users Online\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-users:MAX:%7.2lf     \" ";
+	$graphcmd .= "GPRINT:\"$curif-users:AVERAGE:%7.2lf      \" ";
+	$graphcmd .= "GPRINT:\"$curif-users:LAST:%7.2lf \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-states.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for states stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start -$seconds -e -$average --step $step ";
+	$graphcmd .= "--vertical-label \"states, ip\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"$curif-pfrate=$rrddbpath$curdatabase:pfrate:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-pfstates=$rrddbpath$curdatabase:pfstates:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-pfnat=$rrddbpath$curdatabase:pfnat:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-srcip=$rrddbpath$curdatabase:srcip:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"$curif-dstip=$rrddbpath$curdatabase:dstip:AVERAGE:step=$step\" ";
+	$graphcmd .= "CDEF:\"$curif-pfrate_t=$curif-pfrate,0,1000000,LIMIT,UN,0,$curif-pfrate,IF,$seconds,*\" ";
+	$graphcmd .= "LINE1:\"$curif-pfrate#{$colorstates[0]}:$curif-pfrate\" ";
+	$graphcmd .= "LINE1:\"$curif-pfstates#{$colorstates[1]}:$curif-pfstates\" ";
+	$graphcmd .= "LINE1:\"$curif-pfnat#{$colorstates[2]}:$curif-pfnat\" ";
+	$graphcmd .= "LINE1:\"$curif-srcip#{$colorstates[3]}:$curif-srcip\" ";
+	$graphcmd .= "LINE1:\"$curif-dstip#{$colorstates[4]}:$curif-dstip\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t      minimum        average        maximum        current         period\\n\" ";
+	$graphcmd .= "COMMENT:\"state changes\" ";
+	$graphcmd .= "GPRINT:\"$curif-pfrate:MIN:%7.2lf %s cps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pfrate:AVERAGE:%7.2lf %s cps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pfrate:MAX:%7.2lf %s cps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pfrate:LAST:%7.2lf %S cps\" ";
+	$graphcmd .= "GPRINT:\"$curif-pfrate_t:AVERAGE:%7.2lf %s chg\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"filter states\" ";
+	$graphcmd .= "GPRINT:\"$curif-pfstates:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-pfstates:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-pfstates:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-pfstates:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"nat states   \" ";
+	$graphcmd .= "GPRINT:\"$curif-pfnat:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-pfnat:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-pfnat:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-pfnat:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Source addr. \" ";
+	$graphcmd .= "GPRINT:\"$curif-srcip:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-srcip:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-srcip:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-srcip:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Dest. addr.  \" ";
+	$graphcmd .= "GPRINT:\"$curif-dstip:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-dstip:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-dstip:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"$curif-dstip:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-processor.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for processor stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"utilization, number\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"user=$rrddbpath$curdatabase:user:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"nice=$rrddbpath$curdatabase:nice:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"system=$rrddbpath$curdatabase:system:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"interrupt=$rrddbpath$curdatabase:interrupt:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"processes=$rrddbpath$curdatabase:processes:AVERAGE:step=$step\" ";
+	$graphcmd .= "AREA:\"user#{$colorprocessor[0]}:user\" ";
+	$graphcmd .= "AREA:\"nice#{$colorprocessor[1]}:nice:STACK\" ";
+	$graphcmd .= "AREA:\"system#{$colorprocessor[2]}:system:STACK\" ";
+	$graphcmd .= "AREA:\"interrupt#{$colorprocessor[3]}:interrupt:STACK\" ";
+	$graphcmd .= "LINE2:\"processes#{$colorprocessor[4]}:processes\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t      minimum        average        maximum        current\\n\" ";
+	$graphcmd .= "COMMENT:\"User util.   \" ";
+	$graphcmd .= "GPRINT:\"user:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"user:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"user:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"user:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Nice util.   \" ";
+	$graphcmd .= "GPRINT:\"nice:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"nice:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"nice:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"nice:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"System util. \" ";
+	$graphcmd .= "GPRINT:\"system:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"system:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"system:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"system:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Interrupt    \" ";
+	$graphcmd .= "GPRINT:\"interrupt:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"interrupt:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"interrupt:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"interrupt:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Processes    \" ";
+	$graphcmd .= "GPRINT:\"processes:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"processes:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"processes:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"processes:LAST:%7.2lf %s    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-memory.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for memory usage stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"utilization, percent\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"active=$rrddbpath$curdatabase:active:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"inactive=$rrddbpath$curdatabase:inactive:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"free=$rrddbpath$curdatabase:free:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"cache=$rrddbpath$curdatabase:cache:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"wire=$rrddbpath$curdatabase:wire:AVERAGE:step=$step\" ";
+	$graphcmd .= "LINE2:\"active#{$colormemory[0]}:active\" ";
+	$graphcmd .= "LINE2:\"inactive#{$colormemory[1]}:inactive\" ";
+	$graphcmd .= "LINE2:\"free#{$colormemory[2]}:free\" ";
+	$graphcmd .= "LINE2:\"cache#{$colormemory[3]}:cache\" ";
+	$graphcmd .= "LINE2:\"wire#{$colormemory[4]}:wire\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t      minimum        average        maximum        current\\n\" ";
+	$graphcmd .= "COMMENT:\"Active.      \" ";
+	$graphcmd .= "GPRINT:\"active:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"active:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"active:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"active:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Inactive.    \" ";
+	$graphcmd .= "GPRINT:\"inactive:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"inactive:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"inactive:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"inactive:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Free.        \" ";
+	$graphcmd .= "GPRINT:\"free:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"free:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"free:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"free:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Cached.      \" ";
+	$graphcmd .= "GPRINT:\"cache:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cache:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cache:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cache:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Wired.       \" ";
+	$graphcmd .= "GPRINT:\"wire:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"wire:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"wire:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"wire:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-mbuf.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for mbuf usage stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"utilization, percent\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} clusters - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"current=$rrddbpath$curdatabase:current:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"cache=$rrddbpath$curdatabase:cache:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"total=$rrddbpath$curdatabase:total:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"max=$rrddbpath$curdatabase:max:AVERAGE:step=$step\" ";
+	$graphcmd .= "LINE2:\"current#{$colormbuf[0]}:current\" ";
+	$graphcmd .= "LINE2:\"cache#{$colormbuf[1]}:cache\" ";
+	$graphcmd .= "LINE2:\"total#{$colormbuf[2]}:total\" ";
+	$graphcmd .= "LINE2:\"max#{$colormbuf[3]}:max\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t      minimum        average        maximum        current\\n\" ";
+	$graphcmd .= "COMMENT:\"Current.      \" ";
+	$graphcmd .= "GPRINT:\"current:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"current:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"current:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"current:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Cache.        \" ";
+	$graphcmd .= "GPRINT:\"cache:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cache:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cache:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cache:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Total.        \" ";
+	$graphcmd .= "GPRINT:\"total:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"total:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"total:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"total:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Max.          \" ";
+	$graphcmd .= "GPRINT:\"max:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"max:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"max:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"max:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-queues.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for queue stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"bits/sec\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	if ($altq) {
+		$a_queues =& $altq->get_queue_list();
+		$t = 0;
+	} else {
+		$a_queues = array();
+		$i = 0;
+		$t = 0;
+	}
+	foreach ($a_queues as $name => $q) {
+		$color = "$colorqueuesup[$t]";
+		if ($t > 0) {
+			$stack = ":STACK";
+		}
+		$graphcmd .= "DEF:\"$name=$rrddbpath$curdatabase:$name:AVERAGE:step=$step\" ";
+		$graphcmd .= "CDEF:\"$name-bytes_out=$name,0,$speedlimit,LIMIT,UN,0,$name,IF\" ";
+		$graphcmd .= "CDEF:\"$name-bits_out=$name-bytes_out,8,*\" ";
+		$graphcmd .= "$AREA:\"$name-bits_out#${color}:$name$stack\" ";
+		$t++;
+		if ($t > 7) {
+			$t = 0;
+		}
+	}
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-queuedrops.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for queuedrop stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"drops / sec\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	if ($altq) {
+		$a_queues =& $altq->get_queue_list();
+		$t = 0;
+	} else {
+			$a_queues = array();
+		$i = 0;
+		$t = 0;
+	}
+	foreach ($a_queues as $name => $q) {
+		$color = "$colorqueuesdropup[$t]";
+		if ($t > 0) {
+			$stack = ":STACK";
+		}
+		$graphcmd .= "DEF:\"$name=$rrddbpath$curdatabase:$name:AVERAGE:step=$step\" ";
+		$graphcmd .= "CDEF:\"$name-bytes_out=$name,0,$speedlimit,LIMIT,UN,0,$name,IF\" ";
+		$graphcmd .= "CDEF:\"$name-bits_out=$name-bytes_out,8,*\" ";
+		$graphcmd .= "CDEF:\"$name-bits_out_neg=$name-bits_out,$multiplier,*\" ";
+		$graphcmd .= "$AREA:\"$name-bits_out_neg#${color}:$name$stack\" ";
+		$t++;
+		if ($t > 7) {
+			$t = 0;
+		}
+	}
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-quality.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* make a link quality graphcmd */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png \\
+		--start $start --end $end --step $step  \\
+		--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" \\
+		--color SHADEA#eeeeee --color SHADEB#eeeeee \\
+		--vertical-label \"ms / %\" \\
+		--height 200 --width 620 \\
+		--lower-limit 0 \\
+		DEF:delayraw=$rrddbpath$curdatabase:delay:AVERAGE:step=$step \\
+		DEF:loss=$rrddbpath$curdatabase:loss:AVERAGE:step=$step \\
+		\"CDEF:delay=delayraw,1000,*\" \\
+		\"CDEF:roundavg=delay,PREV(delay),+,2,/\" \\
+		\"CDEF:loss10=loss,$multiplier,*\" \\
+		\"CDEF:r0=delay,20,MIN\" \\
+		\"CDEF:r1=delay,60,MIN\" \\
+		\"CDEF:r2=delay,180,MIN\" \\
+		\"CDEF:r3=delay,420,MIN\" \\
+		COMMENT:\"\t\t\t\t\tDelay\t\t\tPacket loss\\n\" \\
+		AREA:delay#$colorqualityrtt[0]:\"> 420      ms\" \\
+		GPRINT:delay:MIN:\"\t\tMin\\:  %7.2lf ms\" \\
+		GPRINT:loss:MIN:\"\tMin\\: %3.1lf %%\\n\" \\
+		AREA:r3#$colorqualityrtt[1]:\"180-420    ms\" \\
+		GPRINT:delay:AVERAGE:\"\t\tAvg\\:  %7.2lf ms\" \\
+		GPRINT:loss:AVERAGE:\"\tAvg\\: %3.1lf %%\\n\" \\
+		AREA:r2#$colorqualityrtt[2]:\"60-180     ms\" \\
+		GPRINT:delay:MAX:\"\t\tMax\\:  %7.2lf ms\" \\
+		GPRINT:loss:MAX:\"\tMax\\: %3.1lf %%\\n\" \\
+		AREA:r1#$colorqualityrtt[3]:\"20-60      ms\\n\" \\
+		AREA:r0#$colorqualityrtt[4]:\"< 20       ms\" \\
+		GPRINT:delay:LAST:\"\t\tLast\\: %7.2lf ms\" \\
+		GPRINT:loss:LAST:\"\tLast\: %3.1lf %%\\n\" \\
+		AREA:loss10#$colorqualityloss:\"Packet loss\\n\" \\
+		LINE1:delay#$colorqualityrtt[5]:\"Delay average\\n\" \\
+		COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\"";
+} elseif ((strstr($curdatabase, "spamd.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* graph a spamd statistics graph */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png \\
+		--start $start --end $end --step $step \\
+		--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" \\
+		--color SHADEA#eeeeee --color SHADEB#eeeeee \\
+		--vertical-label=\"Conn / Time, sec.\" \\
+		--height 200 --width 620 --no-gridfit \\
+		--lower-limit 0 \\
+		DEF:consmin=$rrddbpath$curdatabase:conn:MIN:step=$step \\
+		DEF:consavg=$rrddbpath$curdatabase:conn:AVERAGE:step=$step \\
+		DEF:consmax=$rrddbpath$curdatabase:conn:MAX:step=$step \\
+		DEF:timemin=$rrddbpath$curdatabase:time:MIN:step=$step \\
+		DEF:timeavg=$rrddbpath$curdatabase:time:AVERAGE:step=$step \\
+		DEF:timemax=$rrddbpath$curdatabase:time:MAX:step=$step \\
+		\"CDEF:timeminadj=timemin,0,86400,LIMIT,UN,0,timemin,IF\" \\
+		\"CDEF:timeavgadj=timeavg,0,86400,LIMIT,UN,0,timeavg,IF\" \\
+		\"CDEF:timemaxadj=timemax,0,86400,LIMIT,UN,0,timemax,IF\" \\
+		\"CDEF:t1=timeminadj,timeavgadj,+,2,/,timeminadj,-\" \\
+		\"CDEF:t2=timeavgadj,timemaxadj,+,2,/,timeminadj,-,t1,-\" \\
+		\"CDEF:t3=timemaxadj,timeminadj,-,t1,-,t2,-\" \\
+		AREA:timeminadj \\
+		AREA:t1#$colorspamdtime[0]::STACK \\
+		AREA:t2#$colorspamdtime[1]::STACK \\
+		AREA:t3#$colorspamdtime[2]::STACK \\
+		LINE2:timeavgadj#$colorspamdtime[3]:\"Time \" \\
+		GPRINT:timeminadj:MIN:\"Min\\:%6.2lf\\t\" \\
+		GPRINT:timeavgadj:AVERAGE:\"Avg\\:%6.2lf\\t\" \\
+		GPRINT:timemaxadj:MAX:\"Max\\:%6.2lf\\n\" \\
+		AREA:consmax#$colorspamdconn[0] \\
+		AREA:consmin#$colorspamdconn[1] \\
+		LINE1:consmin#$colorspamdconn[2] \\
+		LINE1:consmax#$colorspamdconn[3] \\
+		LINE1:consavg#$colorspamdconn[4]:\"Cons \" \\
+		GPRINT:consmin:MIN:\"Min\\:%6.2lf\\t\" \\
+		GPRINT:consavg:AVERAGE:\"Avg\\:%6.2lf\\t\" \\
+		GPRINT:consmax:MAX:\"Max\\:%6.2lf\\n\" \\
+		COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-cellular.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"signal\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"$curif-rssi=$rrddbpath$curdatabase:rssi:AVERAGE:step=$step\" ";
+	$graphcmd .= "LINE2:\"$curif-rssi#{$colorwireless[0]}:$curif-rssi\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t   maximum\t\t average\t     current\\n\" ";
+	$graphcmd .= "COMMENT:\"RSSI\t\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-rssi:MAX:%7.2lf     \" ";
+	$graphcmd .= "GPRINT:\"$curif-rssi:AVERAGE:%7.2lf     \" ";
+	$graphcmd .= "GPRINT:\"$curif-rssi:LAST:%7.2lf \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-loggedin.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for online Captive Portal users stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"Captive Portal Users\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--base=1000 ";
+	$graphcmd .= "--lower-limit=0 ";
+	$graphcmd .= "--slope-mode ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"$curif-loggedinusers=$rrddbpath$curdatabase:loggedinusers:AVERAGE:step=$step\" ";
+	$graphcmd .= "CDEF:\"$curif-totalusers_t=PREV,UN,0,PREV,IF,$curif-loggedinusers,+\" ";
+	$graphcmd .= "CDEF:\"$curif-totalusers_d=$curif-totalusers_t,FLOOR\" ";
+	$graphcmd .= "AREA:\"$curif-totalusers_d#{$colorcaptiveportalusers[0]}:Total logged in users\" ";
+	$graphcmd .= "GPRINT:\"$curif-totalusers_d:MAX:%8.0lf \\n\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "-concurrent.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for online Captive Portal users stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"Captive Portal Users\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--base=1000 ";
+	$graphcmd .= "--lower-limit=0 ";
+	$graphcmd .= "--slope-mode ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"$curif-concurrentusers=$rrddbpath$curdatabase:concurrentusers:AVERAGE:step=$step\" ";
+	$graphcmd .= "AREA:\"$curif-concurrentusers#{$colorcaptiveportalusers[0]}:Concurrent Users\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t    current\t\t average\t     maximum\\n\" ";
+	$graphcmd .= "COMMENT:\"Users Online\t\" ";
+	$graphcmd .= "GPRINT:\"$curif-concurrentusers:LAST:%8.0lf     \" ";
+	$graphcmd .= "GPRINT:\"$curif-concurrentusers:AVERAGE:%8.0lf      \" ";
+	$graphcmd .= "GPRINT:\"$curif-concurrentusers:MAX:%8.0lf \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} elseif ((strstr($curdatabase, "ntpd.rrd")) && (file_exists("$rrddbpath$curdatabase"))) {
+	/* define graphcmd for ntpd (was: mbuf) usage stats */
+	$graphcmd = "$rrdtool graph $rrdtmppath$curdatabase-$curgraph.png ";
+	$graphcmd .= "--start $start --end $end --step $step ";
+	$graphcmd .= "--vertical-label \"time\" ";
+	$graphcmd .= "--color SHADEA#eeeeee --color SHADEB#eeeeee ";
+	$graphcmd .= "--title \"" . php_uname('n') . " - {$prettydb} - {$hperiod} - {$havg} average\" ";
+	$graphcmd .= "--height 200 --width 620 ";
+	$graphcmd .= "DEF:\"offset=$rrddbpath$curdatabase:offset:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"sjit=$rrddbpath$curdatabase:sjit:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"cjit=$rrddbpath$curdatabase:cjit:AVERAGE:step=$step\" ";
+	$graphcmd .= "DEF:\"wander=$rrddbpath$curdatabase:wander:AVERAGE:step=$step\" ";
+	$graphcmd .= "LINE2:\"offset#{$colorntpd[0]}:offset\" ";
+	$graphcmd .= "LINE2:\"sjit#{$colorntpd[1]}:sjit\" ";
+	$graphcmd .= "LINE2:\"cjit#{$colorntpd[2]}:cjit\" ";
+	$graphcmd .= "LINE2:\"wander#{$colorntpd[3]}:wander\" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t        minimum        average        maximum        current\\n\" ";
+	$graphcmd .= "COMMENT:\"Offset         \" ";
+	$graphcmd .= "GPRINT:\"offset:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"offset:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"offset:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"offset:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"System jitter  \" ";
+	$graphcmd .= "GPRINT:\"sjit:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"sjit:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"sjit:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"sjit:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Clock jitter   \" ";
+	$graphcmd .= "GPRINT:\"cjit:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cjit:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cjit:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"cjit:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"Clk freq wander\" ";
+	$graphcmd .= "GPRINT:\"wander:MIN:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"wander:AVERAGE:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"wander:MAX:%7.2lf %s    \" ";
+	$graphcmd .= "GPRINT:\"wander:LAST:%7.2lf %S    \" ";
+	$graphcmd .= "COMMENT:\"\\n\" ";
+	$graphcmd .= "COMMENT:\"\t\t\t\t\t\t\t\t\t\t\t\t\t" . strftime('%b %d %H\:%M\:%S %Y') . "\" ";
+} else {
+	$data = false;
+	log_error(sprintf(gettext("Sorry we do not have data to graph for %s"),$curdatabase));
+}
+
+/* check modification time to see if we need to generate image */
+if (file_exists("$rrdtmppath$curdatabase-$curgraph.png")) {
+	if ((time() - filemtime("$rrdtmppath$curdatabase-$curgraph.png")) >= 15) {
+		if ($data) {
+			$_gb = exec("$graphcmd 2>&1", $graphcmdoutput, $graphcmdreturn);
+			$graphcmdoutput = implode(" ", $graphcmdoutput) . $graphcmd;
+			flush();
+			usleep(500);
+		}
+	}
+} else {
+	if ($data) {
+		$_gb = exec("$graphcmd 2>&1", $graphcmdoutput, $graphcmdreturn);
+		$graphcmdoutput = implode(" ", $graphcmdoutput) . $graphcmd;
+		flush();
+		usleep(500);
+	}
+}
+if (($graphcmdreturn <> 0) || (!$data)) {
+	log_error(sprintf(gettext('Failed to create graph with error code %1$s, the error is: %2$s'), $graphcmdreturn, $graphcmdoutput));
+	if (strstr($curdatabase, "queues")) {
+		log_error(sprintf(gettext("failed to create graph from %s%s, removing database"), $rrddbpath, $curdatabase));
+		unlink_if_exists($rrddbpath . $curif . $queues);
+		flush();
+		usleep(500);
+		enable_rrd_graphing();
+	}
+	if (strstr($curdatabase, "queuesdrop")) {
+		log_error(sprintf(gettext("failed to create graph from %s%s, removing database"), $rrddbpath, $curdatabase));
+		unlink_if_exists($rrddbpath . $curdatabase);
+		flush();
+		usleep(500);
+		enable_rrd_graphing();
+	}
+	header("Content-type: image/png");
+	header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
+	header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
+	header("Cache-Control: no-cache, no-store, must-revalidate");
+	header("Pragma: no-cache");
+	$file= "/usr/local/www/themes/{$g['theme']}/images/misc/rrd_error.png";
+	readfile($file);
+} else {
+	$file = "$rrdtmppath$curdatabase-$curgraph.png";
+	if (file_exists("$file")) {
+		header("Content-type: image/png");
+		header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
+		header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
+		header("Cache-Control: no-cache, no-store, must-revalidate");
+		header("Pragma: no-cache");
+		readfile($file);
+	}
+}
+
+?>