--- net-tools-1.60.orig/lib/interface.c	2004-07-29 10:10:42.000000000 +0200
+++ net-tools-1.60.orig/lib/interface.c	2004-07-30 11:14:21.654014040 +0200
@@ -200,28 +203,34 @@ 
 
 static char *get_name(char *name, char *p)
 {
-    while (isspace(*p))
-	p++;
-    while (*p) {
-	if (isspace(*p))
-	    break;
-	if (*p == ':') {	/* could be an alias */
-	    char *dot = p, *dotname = name;
-	    *name++ = *p++;
-	    while (isdigit(*p))
-		*name++ = *p++;
-	    if (*p != ':') {	/* it wasn't, backup */
-		p = dot;
-		name = dotname;
-	    }
-	    if (*p == '\0')
-		return NULL;
-	    p++;
-	    break;
-	}
-	*name++ = *p++;
+    /* Extract <name>[:<alias>] from nul-terminated p where p matches
+       <name>[:<alias>]: after leading whitespace.
+       If match is not made, set name empty and return unchanged p */
+    int namestart=0, nameend=0, aliasend;
+    while (isspace(p[namestart]))
+        namestart++;
+    nameend=namestart;
+    while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
+        nameend++;
+    if (p[nameend]==':') {
+        aliasend=nameend+1;
+        while (p[aliasend] && isdigit(p[aliasend]))
+            aliasend++;
+        if (p[aliasend]==':') {
+            nameend=aliasend;
+        }
+        if ((nameend-namestart)<IFNAMSIZ) {
+            memcpy(name,&p[namestart],nameend-namestart);
+            name[nameend-namestart]='\0';
+            p=&p[nameend+1];
+        } else {
+            /* Interface name too large */
+            name[0]='\0';
+        }
+    } else {
+        /* first ':' not found - return empty */
+        name[0]='\0';
     }
-    *name++ = '\0';
     return p;
 }