Bug 1278504 - fixed buffer not null terminated. r=valentin

MozReview-Commit-ID: 4V1YcK2thiF

--HG--
extra : rebase_source : d7b574f8a36de604d7d48c33ca8b920a5659dbb5

netwerk/base/NetworkInfoServiceCocoa.cpp

@@ -68,7 +68,7 @@ ListInterfaceAddresses(int aFd, const char* aInterface, AddrMapType& aAddrMap)
 {
     struct ifreq ifreq;
     memset(&ifreq, 0, sizeof(struct ifreq));
-    strncpy(ifreq.ifr_name, aInterface, IFNAMSIZ);
+    strncpy(ifreq.ifr_name, aInterface, IFNAMSIZ - 1);
     if (ioctl(aFd, SIOCGIFADDR, &ifreq) != 0) {
         return NS_ERROR_FAILURE;
     }

netwerk/base/NetworkInfoServiceLinux.cpp

@@ -68,7 +68,7 @@ ListInterfaceAddresses(int aFd, const char* aInterface, AddrMapType& aAddrMap)
 {
     struct ifreq ifreq;
     memset(&ifreq, 0, sizeof(struct ifreq));
-    strncpy(ifreq.ifr_name, aInterface, IFNAMSIZ);
+    strncpy(ifreq.ifr_name, aInterface, IFNAMSIZ - 1);
     if (ioctl(aFd, SIOCGIFADDR, &ifreq) != 0) {
         return NS_ERROR_FAILURE;
     }