log_dir = config_get_string (config_get_instance (), "LightDM", "log-directory");
filename = g_strdup_printf ("%s-greeter.log", display_server_get_name (session_get_display_server (session)));
log_filename = g_build_filename (log_dir, filename, NULL);
g_free (log_dir);
g_free (filename);
log_dir = config_get_string (config_get_instance (), "LightDM", "log-directory");
filename = g_strdup_printf ("%s-greeter.log", display_server_get_name (session_get_display_server (session)));
log_filename = g_build_filename (log_dir, filename, NULL);
g_free (log_dir);
g_free (filename);