36 lines
909 B
PHP
Executable File
36 lines
909 B
PHP
Executable File
<?php
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use React\Dns\Config\Config;
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use React\Dns\Resolver\Factory;
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use React\Dns\Model\Message;
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require __DIR__ . '/../vendor/autoload.php';
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$loop = React\EventLoop\Factory::create();
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$config = Config::loadSystemConfigBlocking();
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$server = $config->nameservers ? reset($config->nameservers) : '8.8.8.8';
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$factory = new Factory();
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$resolver = $factory->create($server, $loop);
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$ip = isset($argv[1]) ? $argv[1] : '8.8.8.8';
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if (@inet_pton($ip) === false) {
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exit('Error: Given argument is not a valid IP' . PHP_EOL);
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}
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if (strpos($ip, ':') === false) {
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$name = inet_ntop(strrev(inet_pton($ip))) . '.in-addr.arpa';
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} else {
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$name = wordwrap(strrev(bin2hex(inet_pton($ip))), 1, '.', true) . '.ip6.arpa';
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}
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$resolver->resolveAll($name, Message::TYPE_PTR)->then(function (array $names) {
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var_dump($names);
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}, function (Exception $e) {
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echo $e->getMessage() . PHP_EOL;
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});
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$loop->run();
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