sdp_chrecvbuf
struct sdp_chrecvbuf *resp_size;
resp_size = (struct sdp_chrecvbuf *)mb_put(mb, sizeof *resp_size);
struct sdp_chrecvbuf *req_size;
req_size = (struct sdp_chrecvbuf *)(h+1);
sdp_handle_resize_request(struct sdp_sock *ssk, struct sdp_chrecvbuf *buf)
sdp_handle_resize_ack(struct sdp_sock *ssk, struct sdp_chrecvbuf *buf)
sdp_handle_resize_request(ssk, (struct sdp_chrecvbuf *)(h+1));
sdp_handle_resize_ack(ssk, (struct sdp_chrecvbuf *)(h+1));