1 files changed, 4 insertions, 0 deletions
diff --git a/axconfig.c b/axconfig.c
index 9486f5b..c6a2cb0 100644
--- a/axconfig.c
+++ b/axconfig.c
@@ -15,7 +15,9 @@
 #include <netax25/axconfig.h>
 #include <netax25/axlib.h>
 #include <netrose/rose.h>
+
 #include "pathnames.h"
+#include "util.h"
 
 typedef struct _axport
 {
@@ -312,6 +314,8 @@ int ax25_config_load_ports(void)
 			while (isspace(*s & 0xff)) ++s;
 
 			memset(&ifr, 0, sizeof(ifr));
+			if (strlen(s) >= IFNAMSIZ)
+				unreachable();
 			strncpy(ifr.ifr_name, s, IFNAMSIZ-1);
 			ifr.ifr_name[IFNAMSIZ-1] = 0;