From c230bc312dff4c70743bbe5134fa59ef56cf7704 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Fri, 20 May 2005 19:19:17 +0000
Subject: [PATCH] 2005-05-20	Sergei Organov  <osv@topconrd.ru>

	PR 749/networking
	* rtems/rtems_showroute.c: Avoid NULL dereference.
---
 cpukit/libnetworking/ChangeLog               | 5 +++++
 cpukit/libnetworking/rtems/rtems_showroute.c | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/cpukit/libnetworking/ChangeLog b/cpukit/libnetworking/ChangeLog
index 35090b2cf4..6777ab722d 100644
--- a/cpukit/libnetworking/ChangeLog
+++ b/cpukit/libnetworking/ChangeLog
@@ -1,3 +1,8 @@
+2005-05-20	Sergei Organov  <osv@topconrd.ru>
+
+	PR 749/networking
+	* rtems/rtems_showroute.c: Avoid NULL dereference.
+
 2004-09-17	Till Strauman <strauman@slac.stanford.edu>
 
 	PR 676/networking
diff --git a/cpukit/libnetworking/rtems/rtems_showroute.c b/cpukit/libnetworking/rtems/rtems_showroute.c
index c0d0b231e8..b963c5f518 100644
--- a/cpukit/libnetworking/rtems/rtems_showroute.c
+++ b/cpukit/libnetworking/rtems/rtems_showroute.c
@@ -128,7 +128,7 @@ show_inet_route (rn, vw)
 	r->pksent = rt->rt_rmx.rmx_pksent;
 	r->expire = rt->rt_rmx.rmx_expire;
 	ifp = rt->rt_ifp;
-	strncpy (r->ifname, ifp->if_name, sizeof r->ifname);
+	strncpy (r->ifname, (ifp->if_name ? ifp->if_name : ""), sizeof r->ifname);
 	r->ifunit = ifp->if_unit;
 	return 0;
 }