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fix MQTT crash (#3127)

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This commit is contained in:
Manuel
2024-01-24 21:01:50 +01:00
committed by GitHub
parent 4ae5443c3b
commit f2c04c5504
1 changed files with 4 additions and 1 deletions
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5
src/mqtt/MQTT.cpp
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@@ -131,7 +131,10 @@ void MQTT::onReceive(char *topic, byte *payload, size_t length)
}
delete json_value;
} else {
if (!pb_decode_from_bytes(payload, length, &meshtastic_ServiceEnvelope_msg, &e)) {
if (length == 0) {
LOG_WARN("Empty MQTT payload received, topic %s!\n", topic);
return;
} else if (!pb_decode_from_bytes(payload, length, &meshtastic_ServiceEnvelope_msg, &e)) {
LOG_ERROR("Invalid MQTT service envelope, topic %s, len %u!\n", topic, length);
return;
} else {