method = '';
if (isset($symon['rrdtool_path'])) {
if (!is_executable($symon['rrdtool_path'])) {
config_error('rrdtool_path', 'is not an executable');
return 0;
}
} else {
config_error('rrdtool_path', 'is not set');
return 0;
}
return 1;
}
function graph($filename, $args) {
global $symon;
if (!is_array($args)) {
$temp = preg_split("/\n/", $args);
} else {
$temp = $args;
}
$args = array();
reset($temp);
foreach ($temp as $t) {
if ($t == '') continue;
if (preg_match("/^\s+$/s", $t)) continue;
array_push($args, $t);
}
$cmdline = $symon['rrdtool_path'] . ' graph '. $filename .
hash2cmdline($args) . ' 2>&1';
$result = $this->exec($cmdline);
if (isset($symon['rrdtool_debug'])) {
$output = "\xa rrdtool graph debug output \xa cmdline: '$cmdline'\xa errors:'".$this->get_error()."'\xa output:'".$this->get_output()."'";
error_log($output);
}
return $result;
}
function get_error() {
return $this->error;
}
function get_output() {
return $this->output;
}
function _test() {
global $symon;
$cmdline = $symon['rrdtool_path'] . ' -v';
if ($this->exec($cmdline) == 0) {
runtime_error('apache or php setup faulty: cannot execute '.$symon['rrdtool_path']);
return 0;
} else {
$version_info = $this->get_output();
if (strlen($version_info) == 0) {
runtime_error('apache or php setup faulty: can execute '.$symon['rrdtool_path']. ', but no results are returned');
return 0;
} else {
print "\xa rrdtool version: ";
if (preg_match("/rrdtool\s+(\S+)/i", $version_info, $match)) {
print $match[1];
} else {
print "unknown";
}
return 1;
}
}
}
function exec($cmdline) {
global $runtime;
$this->error = '';
$this->output = '';
$this->cmdline = $cmdline;
unset($reta);
exec($cmdline, $reta, $ret);
if ($ret != 0) {
foreach($reta as $key => $value) {
$this->error .= ''.$value.'
';
}
return 0;
} else {
foreach($reta as $value) {
if ($value != "") {
$this->output .= ''.$value.'
';
}
}
if (strstr($this->output, 'ERROR:')) {
return 0;
}
return 1;
}
return 1;
}
}
?>