*** fe-exec.c.orig	Thu Apr  4 16:06:38 2002
--- fe-exec.c	Thu Apr  4 16:07:30 2002
***************
*** 75,76 ****
--- 75,80 ----
  
+ 	if ( ! to || ! from || ! length ) {
+ 		return 0;
+ 	}
+ 
  	while (remaining > 0)