caddr_t addr;
const caddr_t addr;
xdrmem_create (xdrs, addr, size, op)     XDR *xdrs;     caddr_t addr;     u_int size;     enum xdr_op op;{  xdrs->x_op = op;  xdrs->x_ops = &xdrmem_ops;  xdrs->x_private = xdrs->x_base = addr;  xdrs->x_handy = size;}