From 6c837872102a400c84c017eb4ef30f0305c9f1cb Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Sun, 19 Jan 2020 12:22:40 +0100
Subject: [PATCH] Lower mqttlog stack usage

---
 tasmota/xdrv_02_mqtt.ino | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tasmota/xdrv_02_mqtt.ino b/tasmota/xdrv_02_mqtt.ino
index a5d90f49a..49d1bf259 100644
--- a/tasmota/xdrv_02_mqtt.ino
+++ b/tasmota/xdrv_02_mqtt.ino
@@ -297,12 +297,11 @@ void MqttUnsubscribe(const char *topic)
 void MqttPublishLogging(const char *mxtime)
 {
   if (MqttIsConnected()) {
-    char saved_mqtt_data[MESSZ];
+    char saved_mqtt_data[strlen(mqtt_data) +1];
     memcpy(saved_mqtt_data, mqtt_data, sizeof(saved_mqtt_data));
 
 //    ResponseTime_P(PSTR(",\"Log\":{\"%s\"}}"), log_data);  // Will fail as some messages contain JSON
     Response_P(PSTR("%s%s"), mxtime, log_data);            // No JSON and ugly!!
-
     char stopic[TOPSZ];
     GetTopic_P(stopic, STAT, mqtt_topic, PSTR("LOGGING"));
     MqttPublishLib(stopic, false);