From 0965c5930b80b6e15bdd6867518e41e6c688a7f2 Mon Sep 17 00:00:00 2001
From: "Namhyeon, Go" <gnh1201@gmail.com>
Date: Wed, 2 Mar 2022 23:51:07 +0900
Subject: [PATCH] Update adb.js

---
 lib/adb.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/adb.js b/lib/adb.js
index ee28799..e3d3c67 100644
--- a/lib/adb.js
+++ b/lib/adb.js
@@ -32,7 +32,12 @@ function ADBObject() {
     };
 
     this.getHostname = function(id) {
-        return this.getProperty(id, "net.hostname").trim();
+        var result = this.getProperty(id, "net.hostname");
+        if (typeof result === "string") {
+            return result.trim();
+        } else {
+            return "";
+        }
     };
 
     this.getProperty = function(id, name) {