void tdb1_header_hash(struct tdb_context *tdb,
uint32_t *magic1_hash, uint32_t *magic2_hash);
uint64_t tdb1_old_hash(const void *key, size_t len, uint64_t seed, void *);
void tdb1_header_hash(struct tdb_context *tdb,
uint32_t *magic1_hash, uint32_t *magic2_hash);
uint64_t tdb1_old_hash(const void *key, size_t len, uint64_t seed, void *);