Index: utils/ofatalkcfg/OFATalkCfg.m
==================================================================
--- utils/ofatalkcfg/OFATalkCfg.m
+++ utils/ofatalkcfg/OFATalkCfg.m
@@ -44,11 +44,11 @@
 {
 	int sock;
 	struct ifreq request;
 	struct sockaddr_at *sat;
 
-	if (interface.UTF8StringLength > IFNAMSIZ) {
+	if (interface.UTF8StringLength > IFNAMSIZ - 1) {
 		[OFStdErr writeFormat: @"%@: Interface name too long!\n",
 				       [OFApplication programName]];
 		[OFApplication terminateWithStatus: 1];
 	}
 
@@ -71,11 +71,11 @@
 
 		[OFApplication terminateWithStatus: 1];
 	}
 
 	memset(&request, 0, sizeof(request));
-	strncpy(request.ifr_name, interface.UTF8String, IFNAMSIZ);
+	strncpy(request.ifr_name, interface.UTF8String, IFNAMSIZ - 1);
 	sat = (struct sockaddr_at *)&request.ifr_addr;
 	sat->sat_family = AF_APPLETALK;
 	sat->sat_net = OFToBigEndian16(network);
 	sat->sat_node = node;
 	/*