From 63c5c3ce2dafc097f7e6ec5157981eb5a656de15 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Sat, 27 Jul 2019 10:04:24 +0200
Subject: backup: fail with 11 when not reachable by any ip version

---
 backup.in | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/backup.in b/backup.in
index 6e08d9e..cda64f8 100755
--- a/backup.in
+++ b/backup.in
@@ -136,6 +136,10 @@ elif [ "$#" -eq 4 ]; then
       | uniq -d \
       | tail -n1
   )
+  if [ -z ${ipVer} ]; then
+    >&2 echo 'not reachable'
+    exit 11
+  fi
   if [ ${ipVer} -eq 4 ]; then
     localAddress='127.0.0.1'
   elif [ ${ipVer} -eq 6 ]; then
-- 
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