From 53be1b02f3a8685bf56c1d7371fbf0822af954b7 Mon Sep 17 00:00:00 2001
From: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Tue, 15 Jan 2019 08:53:57 +0000
Subject: [PATCH] Check if accepting socket produced an error

---
 src/yggdrasil/tcp.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/yggdrasil/tcp.go b/src/yggdrasil/tcp.go
index 9cab9ea..c90c3ff 100644
--- a/src/yggdrasil/tcp.go
+++ b/src/yggdrasil/tcp.go
@@ -140,6 +140,10 @@ func (iface *tcpInterface) listener() {
 	iface.core.log.Println("Listening for TCP on:", iface.serv.Addr().String())
 	for {
 		sock, err := iface.serv.Accept()
+		if err != nil {
+			iface.core.log.Println("Failed to accept connection:", err)
+			return
+		}
 		select {
 		case <-iface.serv_stop:
 			iface.core.log.Println("Stopping listener")