bf_xclose(bf, version, "more info");
bf = bf_xopen(bfs, "tst", /* block size */ 32,
/* wr */ 1, "tstmagic", &version, &more_info);
bf_xclose(bf, version, "more info");
bf = bf_xopen(bfs, "tst", /* block size */ 32,
/* wr */ 1, "tstmagic", &version, &more_info);