1 files changed, 13 insertions, 2 deletions

diff --git a/lib/libalpm/trans.c b/lib/libalpm/trans.c
index 8e47f377..4b29f9a8 100644
--- a/lib/libalpm/trans.c
+++ b/lib/libalpm/trans.c
@@ -105,10 +105,12 @@ static int remove_lock(pmhandle_t *handle)
  * @return 0 on success, -1 on error (pm_errno is set accordingly)
  */
 int SYMEXPORT alpm_trans_init(pmtransflag_t flags,
-                              alpm_trans_cb_event event, alpm_trans_cb_conv conv,
-                              alpm_trans_cb_progress progress)
+		alpm_trans_cb_event event, alpm_trans_cb_conv conv,
+		alpm_trans_cb_progress progress)
 {
 	pmtrans_t *trans;
+	const int required_db_version = 2;
+	int db_version;
 
 	ALPM_LOG_FUNC;
 
@@ -124,6 +126,15 @@ int SYMEXPORT alpm_trans_init(pmtransflag_t flags,
 		}
 	}
 
+	/* check database version */
+	db_version = _alpm_db_version(handle->db_local);
+	if(db_version < required_db_version) {
+		_alpm_log(PM_LOG_ERROR,
+				_("%s database version is too old\n"), handle->db_local->treename);
+		remove_lock(handle);
+		RET_ERR(PM_ERR_DB_VERSION, -1);
+	}
+
 	trans = _alpm_trans_new();
 	if(trans == NULL) {
 		RET_ERR(PM_ERR_MEMORY, -1);