From 2b5ca0033749741dbbe22eed9bc12b4f64199b0d Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Mon, 11 May 2015 15:17:32 +0100
Subject: [PATCH] functions.m4 (ntpclient): Handle NTP servers with IPv6
 addresses.

---
 functions.m4 | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/functions.m4 b/functions.m4
index c8a08c4..765a94d 100644
--- a/functions.m4
+++ b/functions.m4
@@ -301,8 +301,11 @@ ntpclient () {
   ntpchain=$1; shift
 
   clearchain ntp-servers
-  for ntp; do run iptables -A ntp-servers -j ACCEPT -s $ntp; done
-  run iptables -A $ntpchain -j ntp-servers \
+  for ntp; do
+    case $ntp in *:*) ipt=ip6tables ;; *) ipt=iptables ;; esac
+    run $ipt -A ntp-servers -j ACCEPT -s $ntp;
+  done
+  run ip46tables -A $ntpchain -j ntp-servers \
 	  -p udp --source-port 123 --destination-port 123
 }
 
-- 
2.11.0