From f57010909435d6bfa63398215575fcb185269c14 Mon Sep 17 00:00:00 2001
From: Daijiro Wachi <daijiro.wachi@gmail.com>
Date: Fri, 8 Oct 2021 14:16:56 +0900
Subject: [PATCH] net: check if option is undefined

PR-URL: https://github.com/nodejs/node/pull/40344
Fixes: https://github.com/nodejs/node/issues/40336
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Minwoo Jung <nodecorelab@gmail.com>
Reviewed-By: Zijian Liu <lxxyxzj@gmail.com>
Reviewed-By: Robert Nagy <ronagy@icloud.com>
---
 lib/net.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/net.js b/lib/net.js
index c367eb4181c85c..41ff284e1ec027 100644
--- a/lib/net.js
+++ b/lib/net.js
@@ -282,13 +282,13 @@ const kSetNoDelay = Symbol('kSetNoDelay');
 
 function Socket(options) {
   if (!(this instanceof Socket)) return new Socket(options);
-  if (options.objectMode) {
+  if (options?.objectMode) {
     throw new ERR_INVALID_ARG_VALUE(
       'options.objectMode',
       options.objectMode,
       'is not supported'
     );
-  } else if (options.readableObjectMode || options.writableObjectMode) {
+  } else if (options?.readableObjectMode || options?.writableObjectMode) {
     throw new ERR_INVALID_ARG_VALUE(
       `options.${
         options.readableObjectMode ? 'readableObjectMode' : 'writableObjectMode'