diff -ur chntpw-110511.orig/ntreg.c chntpw-110511/ntreg.c
--- chntpw-110511.orig/ntreg.c	2011-05-11 12:33:56.000000000 -0700
+++ chntpw-110511/ntreg.c	2011-11-01 13:36:13.362856892 -0700
@@ -1436,6 +1436,7 @@
   }
 
   strncpy(tmp,path,ABSPATHLEN-1);
+  tmp[ABSPATHLEN-1] = '\0';
 
   if (key->type & 0x20)
     keyname = mem_str(key->keyname, key->len_name);