From 4e24485c24ece0036f53bb29e4488651e66d476f Mon Sep 17 00:00:00 2001
From: Stefano Avallone <stavallo@unina.it>
Date: Thu, 7 Jun 2018 11:14:56 +0200
Subject: [PATCH] tap-bridge: Fix -Werror=stringop-truncation with GCC 8

---
 src/tap-bridge/model/tap-bridge.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/tap-bridge/model/tap-bridge.cc b/src/tap-bridge/model/tap-bridge.cc
index ccddb6124..da2b3c6b5 100644
--- a/src/tap-bridge/model/tap-bridge.cc
+++ b/src/tap-bridge/model/tap-bridge.cc
@@ -639,7 +639,8 @@ TapBridge::CreateTap (void)
           // mac address
           //
           struct ifreq s;
-          strncpy (s.ifr_name, m_tapDeviceName.c_str (), sizeof (s.ifr_name));
+          memset (&s, 0, sizeof(struct ifreq));
+          strncpy (s.ifr_name, m_tapDeviceName.c_str (), IFNAMSIZ - 1);
 
           NS_LOG_INFO ("Trying to get MacAddr of " << m_tapDeviceName);
           int ioctlResult = ioctl (sock, SIOCGIFHWADDR, &s);