mathieu
/
Adafruit_MQTT_Library
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

verify PUBACK for QoS 1

This commit is contained in:
ladyada 2016-01-10 02:21:54 -05:00
parent d58783e3a1
commit 72b3ce172e
1 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Adafruit_MQTT.cpp
View File

@ -240,7 +240,18 @@ bool Adafruit_MQTT::publish(const char *topic, const char *data, uint8_t qos) {
len = readPacket(buffer, 4, PUBLISH_TIMEOUT_MS);
DEBUG_PRINT(F("Publish QOS1+ reply:\t"));
DEBUG_PRINTBUFFER(buffer, len);
//TODO: Verify response packet?
if (len != 4)
return false;
if ((buffer[0] >> 4) != MQTT_CTRL_PUBACK)
return false;
uint16_t packnum = buffer[2];
packnum <<= 8;
packnum |= buffer[3];
// we increment the packet_id_counter right after publishing so inc here too to match
packnum++;
if (packnum != packet_id_counter)
return false;
}
return true;