add_str
req.add_str(32, conf_first_target->name());
req.add_str(1, hostname);
req.add_str(32, target->name());
req.add_str(34, target->alias());
req.add_str(32, conf_first_target->name());
req.add_str(1, hostname);
req.add_str(32, conf_first_target->name());
req.add_str(1, hostname);
void add_str(uint32_t tag, const char *value);