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'use strict';
const common = require('../common');
const dnstools = require('../common/dns');
const dns = require('dns');
const assert = require('assert');
const dgram = require('dgram');
const dnsPromises = dns.promises;
const server = dgram.createSocket('udp4');
server.on('message', common.mustCall((msg, { address, port }) => {
const parsed = dnstools.parseDNSPacket(msg);
const domain = parsed.questions[0].domain;
assert.strictEqual(domain, 'example.org');
const buf = dnstools.writeDNSPacket({
id: parsed.id,
questions: parsed.questions,
answers: { type: 'A', address: '1.2.3.4', ttl: 123, domain },
});
// Overwrite the # of answers with 2, which is incorrect.
buf.writeUInt16LE(2, 6);
server.send(buf, port, address);
}, 2));
server.bind(0, common.mustCall(async () => {
const address = server.address();
dns.setServers([`127.0.0.1:${address.port}`]);
dnsPromises.resolveAny('example.org')
.then(common.mustNotCall())
.catch(common.expectsError({
code: 'EBADRESP',
syscall: 'queryAny',
hostname: 'example.org'
}));
dns.resolveAny('example.org', common.mustCall((err) => {
assert.strictEqual(err.code, 'EBADRESP');
assert.strictEqual(err.syscall, 'queryAny');
assert.strictEqual(err.hostname, 'example.org');
const descriptor = Object.getOwnPropertyDescriptor(err, 'message');
// The error message should be non-enumerable.
assert.strictEqual(descriptor.enumerable, false);
server.close();
}));
}));
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