knot: add explicit integer type to mapsize constants

src/knot/conf/base.c

@@ -186,7 +186,7 @@ int conf_new(
 	// Set the DB api.
 	out->api = knot_db_lmdb_api();
 	struct knot_db_lmdb_opts lmdb_opts = KNOT_DB_LMDB_OPTS_INITIALIZER;
-	lmdb_opts.mapsize = CONF_MAPSIZE * 1024 * 1024;
+	lmdb_opts.mapsize = (size_t)CONF_MAPSIZE * 1024 * 1024;
 	lmdb_opts.flags.env = KNOT_DB_LMDB_NOTLS;
 
 	// Open the database.

src/knot/zone/timers.c

@@ -148,7 +148,7 @@ int open_timers_db(const char *path, knot_db_t **timer_db)
 	}
 
 	struct knot_db_lmdb_opts opts = KNOT_DB_LMDB_OPTS_INITIALIZER;
-	opts.mapsize = TIMER_MAPSIZE * 1024 * 1024;
+	opts.mapsize = (size_t)TIMER_MAPSIZE * 1024 * 1024;
 	opts.path = path;
 
 	return db_api->init(timer_db, NULL, &opts);