int tdb_rec_free_read(struct tdb_context *tdb, tdb_off_t off,
struct tdb_record *rec);
void tdb_header_hash(struct tdb_context *tdb,
int tdb_rec_free_read(struct tdb_context *tdb, tdb_off_t off,
struct tdb_record *rec);
void tdb_header_hash(struct tdb_context *tdb,