tdb: put example hashes into header, so we notice incorrect hash_fn.

[mat/samba.git] / lib / tdb / common / tdb_private.h

diff --git a/lib/tdb/common/tdb_private.h b/lib/tdb/common/tdb_private.h
index 9d0f3bcd703ab537291a2ab903f468d897ba03c0..eccd6880ef5e3ce0d4785600e2704a40ca5e1f26 100644 (file)
--- a/lib/tdb/common/tdb_private.h
+++ b/lib/tdb/common/tdb_private.h
@@ -147,7 +147,9 @@ struct tdb_header {
        tdb_off_t rwlocks; /* obsolete - kept to detect old formats */
        tdb_off_t recovery_start; /* offset of transaction recovery region */
        tdb_off_t sequence_number; /* used when TDB_SEQNUM is set */
-       tdb_off_t reserved[29];
+       uint32_t magic1_hash; /* hash of TDB_MAGIC_FOOD. */
+       uint32_t magic2_hash; /* hash of TDB_MAGIC. */
+       tdb_off_t reserved[27];
 };
 
 struct tdb_lock_type {
@@ -268,3 +270,5 @@ int tdb_rec_free_read(struct tdb_context *tdb, tdb_off_t off,
                      struct tdb_record *rec);
 bool tdb_write_all(int fd, const void *buf, size_t count);
 int tdb_transaction_recover(struct tdb_context *tdb);
+void tdb_header_hash(struct tdb_context *tdb,
+                    uint32_t *magic1_hash, uint32_t *magic2_hash);