From 91ce1c84d81b732a103bf5b611219e38a4754cbf Mon Sep 17 00:00:00 2001
From: Gerhard Hoffmann <g.hoffmann@atb-online.eu>
Date: Thu, 27 Jun 2024 13:23:15 +0200
Subject: [PATCH] be sure to copy not too much data to buf

---
 src/datIf.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/datIf.cpp b/src/datIf.cpp
index 5658fde..8311987 100644
--- a/src/datIf.cpp
+++ b/src/datIf.cpp
@@ -14,6 +14,7 @@ History:
 #include <QDir>
 
 
+#include <algorithm> // min/max
 
 
 
@@ -1048,7 +1049,7 @@ char T_datif::loadRecDataFromFrame()
                 // only use as many bytes as maximally possible
                 char buf[sizeof(struct T_dynamicCondition)];
                 memset(buf, 0, sizeof(buf));
-                memcpy(buf, receivedData, sizeof(struct T_dynamicCondition));
+                memcpy(buf, receivedData, std::min(sizeof(receivedData), sizeof(struct T_dynamicCondition)));
                 gpi_storeDynMachineConditions(buf);
             } else {
                 gpi_storeDynMachineConditions(receivedData);