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