DigitalInfinity/ESP32-PaxCounter
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mqttclient.cpp bugfix hash MAC

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This commit is contained in:
cyberman54 2020-12-27 13:09:10 +01:00
parent 1a2f9e0439
commit 310495e61c
1 changed files with 6 additions and 2 deletions
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8
src/mqttclient.cpp
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@ -41,9 +41,13 @@ esp_err_t mqtt_init(void) {
int mqtt_connect(const char *my_host, const uint16_t my_port) {
IPAddress mqtt_server_ip;
const uint16_t hashed = hash(&ETH.macAddress()[0], 4); // hash MAC to 4 digits
uint8_t mac[6];
char clientId[16];
snprintf(clientId, 16, "paxcounter_%d", hashed);
// hash 6 digit MAC to 4 digits
esp_eth_get_mac(mac);
const uint16_t hashedmac = hash((const char *)mac, 4);
snprintf(clientId, 16, "paxcounter_%04x", hashedmac);
ESP_LOGI(TAG, "MQTT name is %s", MQTT_CLIENTNAME);