added precautions to not go insane when two matching cookies end up in the

        free(co);   /* free the newly alloced memory */

        co = clist; /* point to the previous struct instead */

      }

        /* We have replaced a cookie, now skip the rest of the list but

           make sure the 'lastc' pointer is properly set */

        do {

          lastc = clist;

          clist = clist->next;

        } while(clist);

        break;

      }

    }

    lastc = clist;

    clist = clist->next;