xdr_init_encode — Initialize a struct xdr_stream for sending data.
void xdr_init_encode (struct xdr_stream * xdr, struct xdr_buf * buf, uint32_t * p);
xdrpointer to xdr_stream struct
bufpointer to XDR buffer in which to encode data
pcurrent pointer inside XDR buffer
at the moment the RPC client only passes the length of our
scratch buffer in the xdr_buf's header kvec. Previously this
meant we needed to call xdr_adjust_iovec after encoding the
data. With the new scheme, the xdr_stream manages the details
of the buffer length, and takes care of adjusting the kvec
length for us.