auth: Don't crash if passdb passwd-file is used without any userdbs.

diff --git a/src/auth/db-passwd-file.c b/src/auth/db-passwd-file.c
index 7ace5857f4305142c9d021a04e33a8da260d32be..d9019c6fe242258afaf1b711dcbffe2267697730 100644 (file)
--- a/src/auth/db-passwd-file.c
+++ b/src/auth/db-passwd-file.c
@@ -308,6 +308,7 @@ static void db_passwd_file_set_userdb(struct db_passwd_file *db)
        /* warn about missing userdb fields only when there aren't any other
           userdbs. */
        db->userdb_warn_missing =
+               array_is_created(&global_auth_settings->userdbs) &&
                array_count(&global_auth_settings->userdbs) == 1;
 }