wbt
wbt((tchar)0);
wbt((tchar) IMP);
wbt((tchar)0);
wbt((tchar)0);
wbt((tchar)0);
wbt((tchar)0);
ztest_block_tag_t wbt;
ztest_bt_generate(&wbt, zd->zd_os, object, doi.doi_dnodesize,
(void) ztest_write(zd, object, offset, sizeof (wbt), &wbt);