};
/* initialise a new database */
-static int tdb_new_database(struct tdb_context *tdb, struct tdb_header *hdr)
+static int tdb_new_database(struct tdb_context *tdb,
+ struct tdb_attribute_seed *seed,
+ struct tdb_header *hdr)
{
/* We make it up in memory, then write it out if not internal */
struct new_database newdb;
/* Fill in the header */
newdb.hdr.version = TDB_VERSION;
- newdb.hdr.hash_seed = random_number(tdb);
+ if (seed)
+ newdb.hdr.hash_seed = seed->seed;
+ else
+ newdb.hdr.hash_seed = random_number(tdb);
newdb.hdr.hash_test = TDB_HASH_MAGIC;
newdb.hdr.hash_test = tdb->khash(&newdb.hdr.hash_test,
sizeof(newdb.hdr.hash_test),
uint64_t hash_test;
unsigned v;
struct tdb_header hdr;
+ struct tdb_attribute_seed *seed = NULL;
tdb = malloc(sizeof(*tdb));
if (!tdb) {
tdb->khash = attr->hash.hash_fn;
tdb->hash_priv = attr->hash.hash_private;
break;
+ case TDB_ATTRIBUTE_SEED:
+ seed = &attr->seed;
+ break;
default:
tdb->log(tdb, TDB_DEBUG_ERROR, tdb->log_priv,
"tdb_open: unknown attribute type %u\n",
/* internal databases don't need any of the rest. */
if (tdb->flags & TDB_INTERNAL) {
tdb->flags |= (TDB_NOLOCK | TDB_NOMMAP);
- if (tdb_new_database(tdb, &hdr) != 0) {
+ if (tdb_new_database(tdb, seed, &hdr) != 0) {
tdb->log(tdb, TDB_DEBUG_ERROR, tdb->log_priv,
"tdb_open: tdb_new_database failed!");
goto fail;
if (!tdb_pread_all(tdb->fd, &hdr, sizeof(hdr), 0)
|| strcmp(hdr.magic_food, TDB_MAGIC_FOOD) != 0) {
- if (!(open_flags & O_CREAT) || tdb_new_database(tdb, &hdr) == -1) {
+ if (!(open_flags & O_CREAT)
+ || tdb_new_database(tdb, seed, &hdr) == -1) {
if (errno == 0) {
errno = EIO; /* ie bad format or something */
}