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- #!/usr/bin/php
- <?php
- $timeout = 60;
- switch ($argc) {
- case 4:
- $timeout = (float)$argv[3];
- case 3:
- $host = $argv[1];
- $port = (int)$argv[2];
- break;
- default:
- fwrite(STDERR, 'Usage: '.$argv[0].' host port [timeout]'."\n");
- exit(2);
- }
- if ($timeout < 0) {
- fwrite(STDERR, 'Timeout must be greater than zero'."\n");
- exit(2);
- }
- if ($port < 1) {
- fwrite(STDERR, 'Port must be an integer greater than zero'."\n");
- exit(2);
- }
- $socketTimeout = (float)ini_get('default_socket_timeout');
- if ($socketTimeout > $timeout) {
- $socketTimeout = $timeout;
- }
- $stopTime = time() + $timeout;
- do {
- $sock = @fsockopen($host, $port, $errno, $errstr, $socketTimeout);
- if ($sock !== false) {
- fclose($sock);
- fwrite(STDOUT, "\n");
- exit(0);
- }
- sleep(1);
- fwrite(STDOUT, '.');
- } while (time() < $stopTime);
- fwrite(STDOUT, "\n");
- exit(1);
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