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Resolving plain PTR records is used beyond reverse DNS, most prominently with DNS-SD (RFC6763). This adds dns.resolvePtr(), and uses it (instead of dns.reverse()) in dns.resolve(). PR-URL: https://github.com/nodejs/node/pull/4921 Reviewed-By: Roman Reiss <me@silverwind.io> Reviewed-By: Brian White <mscdex@mscdex.net>
39 lines
969 B
JavaScript
39 lines
969 B
JavaScript
'use strict';
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var common = require('../common');
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var assert = require('assert');
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var dns = require('dns');
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// Try resolution without callback
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dns.lookup(null, function(error, result, addressType) {
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assert.equal(null, result);
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assert.equal(4, addressType);
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});
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dns.lookup('127.0.0.1', function(error, result, addressType) {
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assert.equal('127.0.0.1', result);
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assert.equal(4, addressType);
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});
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dns.lookup('::1', function(error, result, addressType) {
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assert.equal('::1', result);
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assert.equal(6, addressType);
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});
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// Try calling resolve with an unsupported type.
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assert.throws(function() {
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dns.resolve('www.google.com', 'HI');
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}, /Unknown type/);
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// Windows doesn't usually have an entry for localhost 127.0.0.1 in
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// C:\Windows\System32\drivers\etc\hosts
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// so we disable this test on Windows.
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if (!common.isWindows) {
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dns.reverse('127.0.0.1', function(error, domains) {
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if (error) throw error;
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assert.ok(Array.isArray(domains));
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});
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}
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