From fe2b3a01cf73b2dec12699365a4e5bb9acb689c2 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Sat, 20 Mar 2021 12:38:51 +0100
Subject: [PATCH] important bugfix

---
 osal/windows/TmTcWinUdpBridge.cpp | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/osal/windows/TmTcWinUdpBridge.cpp b/osal/windows/TmTcWinUdpBridge.cpp
index fd289ed8..8755c84a 100644
--- a/osal/windows/TmTcWinUdpBridge.cpp
+++ b/osal/windows/TmTcWinUdpBridge.cpp
@@ -58,6 +58,9 @@ ReturnValue_t TmTcWinUdpBridge::initialize() {
     hints.ai_family = AF_INET;
     hints.ai_socktype = SOCK_DGRAM;
     hints.ai_protocol = IPPROTO_UDP;
+    /* See:
+    https://docs.microsoft.com/en-us/windows/win32/api/ws2tcpip/nf-ws2tcpip-getaddrinfo
+    for information about AI_PASSIVE. */
     hints.ai_flags = AI_PASSIVE;
 
     /* Set up UDP socket:
@@ -151,11 +154,9 @@ void TmTcWinUdpBridge::checkAndSetClientAddress(sockaddr_in& newAddress) {
 #endif
     registerCommConnect();
 
-    /* Set new IP address if it has changed. */
-    if(clientAddress.sin_addr.s_addr != newAddress.sin_addr.s_addr) {
-        clientAddress = newAddress;
-        clientAddressLen = sizeof(clientAddress);
-    }
+    /* Set new IP address to reply to */
+    clientAddress = newAddress;
+    clientAddressLen = sizeof(clientAddress);
 }
 
 void TmTcWinUdpBridge::setMutexProperties(MutexIF::TimeoutType timeoutType,