sesskey = open_settings_w(section);
sesskey = open_settings_w(section, &errmsg);
void save_settings(char *section, int do_host, Config * cfg){    void *sesskey;    sesskey = open_settings_w(section);    if (!sesskey)	return;    save_open_settings(sesskey, do_host, cfg);    close_settings_w(sesskey);}