From a82fc30383b51940cc84823cad6284ef61a7927a Mon Sep 17 00:00:00 2001
From: Nikolai Vavilov <vvnicholas@gmail.com>
Date: Sun, 16 Sep 2018 22:47:17 +0300
Subject: [PATCH] tty: handle setRawMode errors

PR-URL: https://github.com/nodejs/node/pull/22886
Refs: https://github.com/nodejs/node/issues/21773
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
---
 lib/tty.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/tty.js b/lib/tty.js
index 62eb8719b114b9..4e78347c2d25ba 100644
--- a/lib/tty.js
+++ b/lib/tty.js
@@ -68,7 +68,11 @@ inherits(ReadStream, net.Socket);
 
 ReadStream.prototype.setRawMode = function(flag) {
   flag = !!flag;
-  this._handle.setRawMode(flag);
+  const err = this._handle.setRawMode(flag);
+  if (err) {
+    this.emit('error', errors.errnoException(err, 'setRawMode'));
+    return;
+  }
   this.isRaw = flag;
 };