/**
* Determine useful information about RRD file
* @file Name of RRD file to analyse
* @return Array describing the RRD file
*/
function rrd_info($file)
{
$info = array('filename' => $file);
$rrd = popen(RRDTOOL . ' info ' . escapeshellarg($file), 'r');
if ($rrd) {
while (($s = fgets($rrd)) !== false) {
$p = strpos($s, '=');
if ($p === false) {
continue;
}
$key = trim(substr($s, 0, $p));
$value = trim(substr($s, $p + 1));
if (strncmp($key, 'ds[', 3) == 0) {
/* DS definition */
$p = strpos($key, ']');
$ds = substr($key, 3, $p - 3);
if (!isset($info['DS'])) {
$info['DS'] = array();
}
$ds_key = substr($key, $p + 2);
if (strpos($ds_key, '[') === false) {
if (!isset($info['DS']["{$ds}"])) {
$info['DS']["{$ds}"] = array();
}
$info['DS']["{$ds}"]["{$ds_key}"] = rrd_strip_quotes($value);
}
} else {
if (strncmp($key, 'rra[', 4) == 0) {
/* RRD definition */
$p = strpos($key, ']');
$rra = substr($key, 4, $p - 4);
if (!isset($info['RRA'])) {
$info['RRA'] = array();
}
$rra_key = substr($key, $p + 2);
if (strpos($rra_key, '[') === false) {
if (!isset($info['RRA']["{$rra}"])) {
$info['RRA']["{$rra}"] = array();
}
$info['RRA']["{$rra}"]["{$rra_key}"] = rrd_strip_quotes($value);
}
} else {
if (strpos($key, '[') === false) {
$info[$key] = rrd_strip_quotes($value);
}
}
}
}
pclose($rrd);
}
return $info;
}
function rrdtool_file_info($file)
{
$info = array('filename' => $file);
$rrd = array_filter(explode(PHP_EOL, shell_exec($GLOBALS['config']['rrdtool'] . " info " . $file)), 'strlen');
if ($rrd) {
foreach ($rrd as $s) {
$p = strpos($s, '=');
if ($p === false) {
continue;
}
$key = trim(substr($s, 0, $p));
$value = trim(substr($s, $p + 1));
if (strncmp($key, 'ds[', 3) == 0) {
/* DS definition */
$p = strpos($key, ']');
$ds = substr($key, 3, $p - 3);
if (!isset($info['DS'])) {
$info['DS'] = array();
}
$ds_key = substr($key, $p + 2);
if (strpos($ds_key, '[') === false) {
if (!isset($info['DS']["{$ds}"])) {
$info['DS']["{$ds}"] = array();
}
$info['DS']["{$ds}"]["{$ds_key}"] = rrd_strip_quotes($value);
}
} else {
if (strncmp($key, 'rra[', 4) == 0) {
/* RRD definition */
$p = strpos($key, ']');
$rra = substr($key, 4, $p - 4);
if (!isset($info['RRA'])) {
$info['RRA'] = array();
}
$rra_key = substr($key, $p + 2);
if (strpos($rra_key, '[') === false) {
if (!isset($info['RRA']["{$rra}"])) {
$info['RRA']["{$rra}"] = array();
}
$info['RRA']["{$rra}"]["{$rra_key}"] = rrd_strip_quotes($value);
}
} else {
if (strpos($key, '[') === false) {
$info[$key] = rrd_strip_quotes($value);
}
}
}
}
}
return $info;
}