From 9639a2e0886f27b452ab8927a86f00e5827dda3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manuel=20Valls=20Fern=C3=A1ndez?= <manolo@vlrz.es>
Date: Sun, 15 Mar 2020 18:57:44 +0100
Subject: [PATCH] Show an error when local network unavailable

---
 main.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/main.go b/main.go
index 14d5a6f..e5f45c7 100644
--- a/main.go
+++ b/main.go
@@ -54,6 +54,10 @@ func main() {
 	filePath := os.Args[1]
 	fileName := filepath.Base(filePath)
 	ip := getIP()
+	if ip == "" {
+		showError("Could not find LAN address")
+		return
+	}
 
 	ln, err := net.Listen("tcp", ip+":0")
 	if err != nil {