varpd_persist_header_t
varpd_persist_header_t hdr;
bzero(&hdr, sizeof (varpd_persist_header_t));
sizeof (varpd_persist_header_t))) != 0) {
varpd_persist_header_t *hdr;
if (st.st_size <= sizeof (varpd_persist_header_t))
fsize = st.st_size - sizeof (varpd_persist_header_t);
datap = (void *)((uintptr_t)buf + sizeof (varpd_persist_header_t));