From e1a5c15d3707effd2546ee9a672fbb10da142112 Mon Sep 17 00:00:00 2001
From: David Kerr <david@kerr.net>
Date: Sun, 25 Sep 2016 14:32:55 -0400
Subject: [PATCH] Fixed bugs in logic testing when to update IPv6 address

---
 ddclient | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/ddclient b/ddclient
index 3ebcb17..1231287 100755
--- a/ddclient
+++ b/ddclient
@@ -2568,7 +2568,7 @@ sub nic_updateable {
 		);
 		$update = 1;
 
-    } elsif (defined($cache{$host}{'use'} && ($cache{$host}{'use'} ne 'no')) &&
+    } elsif ((defined($config{$host}{'use'}) && ($config{$host}{'use'} ne 'no')) &&
 			 ((!exists($cache{$host}{'ip'})) || ("$cache{$host}{'ip'}" ne "$ip"))) {
 	    if (($cache{$host}{'status'} eq 'good') && 
 			    !interval_expired($host, 'mtime', 'min-interval')) {
@@ -2600,7 +2600,7 @@ sub nic_updateable {
 			$update = 1;
 		}
 		
-    } elsif (defined($cache{$host}{'usev6'} && ($cache{$host}{'usev6'} ne 'no') ) &&
+    } elsif ((defined($config{$host}{'usev6'}) && ($config{$host}{'usev6'} ne 'no') ) &&
 			 ((!exists($cache{$host}{'ipv6'})) || ("$cache{$host}{'ipv6'}" ne "$ipv6"))) {
         if (($cache{$host}{'status'} eq 'good') &&
              !interval_expired($host, 'mtime', 'min-interval')) {
@@ -2644,8 +2644,13 @@ sub nic_updateable {
 		$update = 1;
 
     } else {
-		success("%s: skipped: IP address was already set to %s.", $host, $ip)
-			if opt('verbose');
+		if opt('verbose') {
+			
+			if (defined($config{$host}{'use'}) && ($config{$host}{'use'} ne 'no'))
+				success("%s: skipped: IP address was already set to %s.", $host, $ip)
+			if (defined($config{$host}{'usev6'}) && ($config{$host}{'usev6'} ne 'no'))
+				success("%s: skipped: IP address was already set to %s.", $host, $ipv6)
+		}
     }
     $config{$host}{'status'} = define($cache{$host}{'status'},'');
     $config{$host}{'update'} = $update;