DB_VERSION
data.dptr = DB_VERSION;
data.dsize = strlen(DB_VERSION);
if (init_db_instance(IDMAP_DBNAME, DB_VERSION, DB_VERSION_SQL, sql,
if (DB_HDR(hdp)->magic != DB_MAGIC || DB_HDR(hdp)->vers != DB_VERSION) {
DB_HDR(hdp)->vers = DB_VERSION;