net: add symbol to normalized connect() args

This commit attaches a Symbol to the result of
net._normalizeArgs(). This prevents normal arrays from being
passed to the internal Socket.prototype.connect() bypass logic.

PR-URL: https://github.com/nodejs/node/pull/13069
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/internal/net.js b/lib/internal/net.js
index ce8f549bdf..d4558cfca8 100644
--- a/lib/internal/net.js
+++ b/lib/internal/net.js
@@ -10,5 +10,6 @@ function isLegalPort(port) {
 }
 
 module.exports = {
-  isLegalPort
+  isLegalPort,
+  normalizedArgsSymbol: Symbol('normalizedArgs')
 };