+ * @param uid the uid
+ * @param homedir string to append home directory to
+ * @returns #TRUE if user existed and we appended their homedir
+ */
+dbus_bool_t
+_dbus_homedir_from_uid (dbus_uid_t uid,
+ DBusString *homedir)
+{
+ DBusUserDatabase *db;
+ const DBusUserInfo *info;
+ _dbus_user_database_lock_system ();
+
+ db = _dbus_user_database_get_system ();
+ if (db == NULL)
+ {
+ _dbus_user_database_unlock_system ();
+ return FALSE;
+ }
+
+ if (!_dbus_user_database_get_uid (db, uid,
+ &info, NULL))
+ {
+ _dbus_user_database_unlock_system ();
+ return FALSE;
+ }
+
+ if (!_dbus_string_append (homedir, info->homedir))
+ {
+ _dbus_user_database_unlock_system ();
+ return FALSE;
+ }
+
+ _dbus_user_database_unlock_system ();
+ return TRUE;
+}
+
+/**
+ * Adds the credentials corresponding to the given username.
+ *
+ * Used among other purposes to parses a desired identity provided
+ * from a client in the auth protocol. On UNIX this means parsing a
+ * UID, on Windows probably parsing an SID string.
+ *
+ * @todo this is broken because it treats OOM and parse error
+ * the same way. Needs a #DBusError.
+ *
+ * @param credentials credentials to fill in