From 280b9d562f680b5cfba659a0a6d454b2ca3688e0 Mon Sep 17 00:00:00 2001
From: Feng Yu <F3n67u@outlook.com>
Date: Sat, 28 May 2022 13:26:56 +0800
Subject: [PATCH] dns: make promise API fully constructed from
 `lib/internal/dns/promises`

---
 lib/dns.js                   |  2 --
 lib/dns/promises.js          |  4 +---
 lib/internal/dns/promises.js | 17 ++++++++++++++++-
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/lib/dns.js b/lib/dns.js
index 284032202a24d4..064615014425b2 100644
--- a/lib/dns.js
+++ b/lib/dns.js
@@ -412,8 +412,6 @@ ObjectDefineProperties(module.exports, {
     get() {
       if (promises === null) {
         promises = require('internal/dns/promises');
-        promises.setServers = defaultResolverSetServers;
-        promises.setDefaultResultOrder = setDefaultResultOrder;
       }
       return promises;
     }
diff --git a/lib/dns/promises.js b/lib/dns/promises.js
index ad8a2561ef51e4..35881e5bb47374 100644
--- a/lib/dns/promises.js
+++ b/lib/dns/promises.js
@@ -1,5 +1,3 @@
 'use strict';
 
-const dnsPromises = require('internal/dns/promises');
-dnsPromises.setServers = require('dns').setServers;
-module.exports = dnsPromises;
+module.exports = require('internal/dns/promises');
diff --git a/lib/internal/dns/promises.js b/lib/internal/dns/promises.js
index 58493134221913..21c423fe71eb8a 100644
--- a/lib/internal/dns/promises.js
+++ b/lib/internal/dns/promises.js
@@ -16,6 +16,8 @@ const {
   validateTries,
   emitInvalidHostnameWarning,
   getDefaultVerbatim,
+  setDefaultResultOrder,
+  setDefaultResolver,
 } = require('internal/dns/utils');
 const { codes, dnsException } = require('internal/errors');
 const { toASCII } = require('internal/idna');
@@ -322,6 +324,19 @@ Resolver.prototype.resolve = function resolve(hostname, rrtype) {
   return ReflectApply(resolver, this, [hostname]);
 };
 
+function defaultResolverSetServers(servers) {
+  const resolver = new Resolver();
 
-module.exports = { lookup, lookupService, Resolver };
+  resolver.setServers(servers);
+  setDefaultResolver(resolver);
+  bindDefaultResolver(module.exports, Resolver.prototype);
+}
+
+module.exports = {
+  lookup,
+  lookupService,
+  Resolver,
+  setDefaultResultOrder,
+  setServers: defaultResolverSetServers,
+};
 bindDefaultResolver(module.exports, Resolver.prototype);