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0090c10782
PR-URL: https://github.com/nodejs/node/pull/51385 Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
55 lines
1.9 KiB
JavaScript
55 lines
1.9 KiB
JavaScript
'use strict';
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const common = require('../common');
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const dnstools = require('../common/dns');
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const dns = require('dns');
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const assert = require('assert');
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const dgram = require('dgram');
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const dnsPromises = dns.promises;
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const server = dgram.createSocket('udp4');
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const resolver = new dns.Resolver({ timeout: 100, tries: 1 });
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const resolverPromises = new dnsPromises.Resolver({ timeout: 100, tries: 1 });
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server.on('message', common.mustCall((msg, { address, port }) => {
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const parsed = dnstools.parseDNSPacket(msg);
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const domain = parsed.questions[0].domain;
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assert.strictEqual(domain, 'example.org');
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const buf = dnstools.writeDNSPacket({
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id: parsed.id,
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questions: parsed.questions,
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answers: { type: 'A', address: '1.2.3.4', ttl: 123, domain },
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});
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// Overwrite the # of answers with 2, which is incorrect. The response is
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// discarded in c-ares >= 1.21.0. This is the reason why a small timeout is
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// used in the `Resolver` constructor. See
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// https://github.com/nodejs/node/pull/50743#issue-1994909204
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buf.writeUInt16LE(2, 6);
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server.send(buf, port, address);
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}, 2));
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server.bind(0, common.mustCall(async () => {
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const address = server.address();
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resolver.setServers([`127.0.0.1:${address.port}`]);
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resolverPromises.setServers([`127.0.0.1:${address.port}`]);
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resolverPromises.resolveAny('example.org')
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.then(common.mustNotCall())
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.catch(common.expectsError({
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// May return EBADRESP or ETIMEOUT
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code: /^(?:EBADRESP|ETIMEOUT)$/,
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syscall: 'queryAny',
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hostname: 'example.org'
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}));
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resolver.resolveAny('example.org', common.mustCall((err) => {
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assert.notStrictEqual(err.code, 'SUCCESS');
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assert.strictEqual(err.syscall, 'queryAny');
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assert.strictEqual(err.hostname, 'example.org');
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const descriptor = Object.getOwnPropertyDescriptor(err, 'message');
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// The error message should be non-enumerable.
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assert.strictEqual(descriptor.enumerable, false);
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server.close();
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}));
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}));
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