From a074de2042e4434c7a63189b4a473fd44142edd6 Mon Sep 17 00:00:00 2001
From: Stephen Couchman <lanfear@greyscribes.com>
Date: Tue, 5 Aug 2014 18:50:38 -0400
Subject: [PATCH] Interfaces can be named almost anything on modern systems.

---
 ddclient | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ddclient b/ddclient
index ccefe1a..9b1c8a9 100755
--- a/ddclient
+++ b/ddclient
@@ -1753,7 +1753,7 @@ sub check_value {
 	return undef if $value eq "";
 
     } elsif ($type eq T_IF) {
-	return undef if $value !~ /^[a-z0-9:._-]+$/;
+	return undef if $value !~ /^[a-zA-Z0-9:._-]+$/;
 
     } elsif ($type eq T_PROG) {
 	return undef if $value eq "";