1
0
mirror of https://github.com/esphome/esphome.git synced 2025-10-13 15:23:49 +01:00
Files
esphome/esphome/components/mdns/mdns_esp32.cpp

54 lines
1.6 KiB
C++

#include "esphome/core/defines.h"
#if defined(USE_ESP32) && defined(USE_MDNS)
#include <mdns.h>
#include <cstring>
#include "esphome/core/hal.h"
#include "esphome/core/log.h"
#include "mdns_component.h"
namespace esphome {
namespace mdns {
static const char *const TAG = "mdns";
void MDNSComponent::setup() {
this->compile_records_();
esp_err_t err = mdns_init();
if (err != ESP_OK) {
ESP_LOGW(TAG, "Init failed: %s", esp_err_to_name(err));
this->mark_failed();
return;
}
mdns_hostname_set(this->hostname_.c_str());
mdns_instance_name_set(this->hostname_.c_str());
for (const auto &service : this->services_) {
std::vector<mdns_txt_item_t> txt_records(service.txt_records.size());
for (size_t i = 0; i < service.txt_records.size(); i++) {
// mdns_service_add copies the strings internally, no need to strdup
txt_records[i].key = service.txt_records[i].key.c_str();
txt_records[i].value = const_cast<TemplatableValue<std::string> &>(service.txt_records[i].value).value().c_str();
}
uint16_t port = const_cast<TemplatableValue<uint16_t> &>(service.port).value();
err = mdns_service_add(nullptr, service.service_type.c_str(), service.proto.c_str(), port, txt_records.data(),
txt_records.size());
if (err != ESP_OK) {
ESP_LOGW(TAG, "Failed to register service %s: %s", service.service_type.c_str(), esp_err_to_name(err));
}
}
}
void MDNSComponent::on_shutdown() {
mdns_free();
delay(40); // Allow the mdns packets announcing service removal to be sent
}
} // namespace mdns
} // namespace esphome
#endif // USE_ESP32