From 9724ff41ede2a02ab117a37436f3b9c90f598269 Mon Sep 17 00:00:00 2001
From: Kurt Thiemann <info@kurtthiemann.com>
Date: Tue, 4 Oct 2022 08:57:00 +0200
Subject: [PATCH] Fix buffer length calculation in ServerAdvertisement (#292)

---
 src/server/advertisement.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/server/advertisement.js b/src/server/advertisement.js
index c7210d9..2d0a4c2 100644
--- a/src/server/advertisement.js
+++ b/src/server/advertisement.js
@@ -51,8 +51,9 @@ class ServerAdvertisement {
 
   toBuffer (version) {
     const str = this.toString(version)
-    const buf = Buffer.alloc(2 + str.length)
-    buf.writeUInt16BE(str.length, 0)
+    const length = Buffer.byteLength(str)
+    const buf = Buffer.alloc(2 + length)
+    buf.writeUInt16BE(length, 0)
     buf.write(str, 2)
     return buf
   }