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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-dns-cancel-reverse-lookup.js |
'use strict';
const common = require('../common');
const dnstools = require('../common/dns');
const { Resolver } = require('dns');
const assert = require('assert');
const dgram = require('dgram');
const server = dgram.createSocket('udp4');
const resolver = new Resolver();
server.bind(0, common.mustCall(() => {
resolver.setServers([`127.0.0.1:${server.address().port}`]);
resolver.reverse('123.45.67.89', common.mustCall((err, res) => {
assert.strictEqual(err.code, 'ECANCELLED');
assert.strictEqual(err.syscall, 'getHostByAddr');
assert.strictEqual(err.hostname, '123.45.67.89');
server.close();
}));
}));
server.on('message', common.mustCall((msg, { address, port }) => {
const parsed = dnstools.parseDNSPacket(msg);
const domain = parsed.questions[0].domain;
assert.strictEqual(domain, '89.67.45.123.in-addr.arpa');
// Do not send a reply.
resolver.cancel();
}));
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