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Merge branch 'bugfix/fix_esp_mqtt_client_enqueue' into 'master'

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mqtt_client: fix esp_mqtt_client_enqueue for len=0 (GitHub PR)

See merge request espressif/esp-mqtt!135
This commit is contained in:
David Čermák
2022-06-08 19:33:38 +08:00
parent 16952ea66f 69b6493423
commit 7a31a555e9
1 changed files with 10 additions and 0 deletions
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10
mqtt_client.c
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@ -1948,6 +1948,16 @@ int esp_mqtt_client_enqueue(esp_mqtt_client_handle_t client, const char *topic,
ESP_LOGE(TAG, "Client was not initialized"); ESP_LOGE(TAG, "Client was not initialized");
return -1; return -1;
} }
/* Acceptable publish messages:
data == NULL, len == 0: publish null message
data valid, len == 0: publish all data, payload len is determined from string length
data valid, len > 0: publish data with defined length
*/
if (len <= 0 && data != NULL) {
len = strlen(data);
}
MQTT_API_LOCK(client); MQTT_API_LOCK(client);
int ret = mqtt_client_enqueue_priv(client, topic, data, len, qos, retain, store); int ret = mqtt_client_enqueue_priv(client, topic, data, len, qos, retain, store);
MQTT_API_UNLOCK(client); MQTT_API_UNLOCK(client);