From 34b0a70b4f0fdf1c8dc23175d6ff1cb1db62a9ae Mon Sep 17 00:00:00 2001
From: f <f@sutty.nl>
Date: Thu, 1 Apr 2021 16:56:20 -0300
Subject: [PATCH] append dot if hostname contains domain

---
 nsupdate.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/nsupdate.sh b/nsupdate.sh
index 2d3b705..dd03c23 100755
--- a/nsupdate.sh
+++ b/nsupdate.sh
@@ -9,12 +9,15 @@ test -z "${IP6}" && exit 1
 test -z "${KNOT}" && exit 1
 test -z "${DOMAIN}" && exit 1
 
+# Add a dot if the hostname contains the domain
+echo "${HOSTNAME}" | grep -q "\.${DOMAIN}$" && DOT="."
+
 knsupdate <<DNS
 server ${KNOT}
 zone ${DOMAIN}.
 origin ${DOMAIN}.
 ttl 60
-add ${HOSTNAME} AAAA ${IP6}
+add ${HOSTNAME}${DOT} AAAA ${IP6}
 send
 quit
 DNS