diff --git a/mDNSPosix/mDNSUNP.c b/mDNSPosix/mDNSUNP.c
index 7feff31..fb107b5 100755
--- a/mDNSPosix/mDNSUNP.c
+++ b/mDNSPosix/mDNSUNP.c
@@ -117,7 +117,7 @@
 					continue;   /* already processed this interface */
 				myflags = IFI_ALIAS;
 				}
-			memcpy(lastname, ifname, IFNAMSIZ);
+			strncpy(lastname, ifname, IFNAMSIZ);
 			ifi = (struct ifi_info*)calloc(1, sizeof(struct ifi_info));
 			if (ifi == NULL) {
 				goto gotError;
@@ -164,13 +164,13 @@
 
 
 			/* Add interface name */
-			memcpy(ifi->ifi_name, ifname, IFI_NAME);
+			strncpy(ifi->ifi_name, ifname, IFI_NAME);
 
 			/* Add interface index */
 			ifi->ifi_index = index;
 
 			/* Add interface flags*/
-			memcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+			strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
 			if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0) {
 				if (errno == EADDRNOTAVAIL) {
 					/*