-static void usage(void);
-static int begin_io(const char *, const char *);
-static int leave_io(const struct md_mbuf *,
- const struct md_rbuf *, int);
-static int begin_bufs(struct md_mbuf *, struct md_rbuf *);
-static int leave_bufs(const struct md_mbuf *,
- const struct md_rbuf *, int);
+static void usage(void);
+
+static int begin_io(const struct md_args *,
+ char *, char *);
+static int leave_io(const struct md_buf *,
+ const struct md_buf *, int);
+static int begin_bufs(const struct md_args *,
+ struct md_buf *, struct md_buf *);
+static int leave_bufs(const struct md_buf *,
+ const struct md_buf *, int);