tap-bridge: Fix -Werror=stringop-truncation with GCC 8

2018-06-07 11:14:56 +02:00
parent 598e2726bf
commit 4e24485c24
1 changed files with 2 additions and 1 deletions
--- 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);