From d19bab2e415eb6d9787597eff213229a253a7cbb Mon Sep 17 00:00:00 2001
From: Antonio Huete Jimenez <tuxillo@quantumachine.net>
Date: Thu, 2 Aug 2012 20:15:28 +0200
Subject: [PATCH] dhclient - Make sure an interface is registered before we
 start using it.

Taken-from: OpenBSD
---
 sbin/dhclient/dispatch.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/sbin/dhclient/dispatch.c b/sbin/dhclient/dispatch.c
index 3c021b4..7968d24 100644
--- a/sbin/dhclient/dispatch.c
+++ b/sbin/dhclient/dispatch.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: src/sbin/dhclient/dispatch.c,v 1.47 2010/07/02 22:03:27 deraadt Exp $	*/
+/*	$OpenBSD: src/sbin/dhclient/dispatch.c,v 1.49 2010/10/23 14:26:57 phessler Exp $	*/
 
 /*
  * Copyright 2004 Henning Brauer <henning@openbsd.org>
@@ -132,6 +132,9 @@ dispatch(void)
 		 * a timeout registered, time out the select call then.
 		 */
 another:
+		if (!ifi)
+			error("No interfaces available");
+
 		if (!ifi->linkstat)
 			interfaces_invalidated = 0;
 
-- 
1.7.7.2