diff -up net-tools-1.60/lib/interface.c.long_iface net-tools-1.60/lib/interface.c

--- net-tools-1.60/lib/interface.c.long_iface	2011-12-05 18:16:38.000000000 +0100

+++ net-tools-1.60/lib/interface.c	2011-12-05 19:13:17.343530194 +0100

@@ -216,6 +216,7 @@ out:

 char *get_name(char **namep, char *p)

 {

+    int count = 0;

     while (isspace(*p))

 	p++;

     char *name = *namep = p;

@@ -224,7 +225,13 @@ char *get_name(char **namep, char *p)

 	    break;

 	if (*p == ':') {	/* could be an alias */

 		char *dot = p++;

- 		while (*p && isdigit(*p)) p++;

+		count++;

+		while (*p && isdigit(*p)) {

+		    p++;

+		    count++;

+		    if (count == (IFNAMSIZ-1))

+			break;

+		}

 		if (*p == ':') {

 			/* Yes it is, backup and copy it. */

 			p = dot;

@@ -240,6 +247,9 @@ char *get_name(char **namep, char *p)

 	    break;

 	}

 	*name++ = *p++;

+	count++;

+	if (count == (IFNAMSIZ-1))

+    	      break;

     }

     *name++ = '\0';

     return p;