-copyin(udaddr, kaddr, n) caddr_t udaddr, kaddr; unsigned n; { return (0); }
+ovbcopy(from, to, len) caddr_t from, to; unsigned len; { }
+copyinstr(udaddr, kaddr, maxlength, lencopied)
+ caddr_t udaddr, kaddr; u_int maxlength, *lencopied;
+{ *kaddr = *udaddr; *lencopied = maxlength; return (0); }
+copyoutstr(kaddr, udaddr, maxlength, lencopied)
+ caddr_t kaddr, udaddr; u_int maxlength, *lencopied;
+{ *udaddr = *kaddr; *lencopied = maxlength; return (0); }
+copystr(kfaddr, kdaddr, maxlength, lencopied)
+ caddr_t kfaddr, kdaddr; u_int maxlength, *lencopied;
+{ *kdaddr = *kfaddr; *lencopied = maxlength; return (0); }