make_uio
make_uio((void *)inbuf, inlen, &uio_in, iov_in, 4);
make_uio(outbuf, *outlen, &uio_out, iov_out, 4);
make_uio((void *)inbuf, inlen, &uio_in, iov_in, 4);
make_uio(outbuf, *outlen, &uio_out, iov_out, 4);
void make_uio(void *, size_t, uio_t *, iovec_t *, int);