x_putbytes
bool_t (*x_putbytes)(struct __rpc_xdr *, const char *, u_int);
(*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
(*(xdrs)->x_ops->x_putbytes)(xdrs, addr, len)
dummy = (*xdrs->x_ops->x_putbytes)(xdrs,
ops.x_putbytes = x_putbytes;