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@ -550,115 +550,115 @@ namespace net
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return mtu;
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#elif defined(WIN32)
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int result = 576; // fallback MTU
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int result = 576; // fallback MTU
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DWORD dwRetVal = 0;
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ULONG outBufLen = 0;
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PIP_ADAPTER_ADDRESSES pAddresses = nullptr;
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PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr;
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PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr;
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DWORD dwRetVal = 0;
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ULONG outBufLen = 0;
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PIP_ADAPTER_ADDRESSES pAddresses = nullptr;
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PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr;
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PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr;
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#ifdef UNICODE
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string localAddress_temporary = localAddress.to_string();
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wstring localAddressUniversal (localAddress_temporary.begin(), localAddress_temporary.end());
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string localAddress_temporary = localAddress.to_string();
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wstring localAddressUniversal (localAddress_temporary.begin(), localAddress_temporary.end());
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#else
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std::string localAddressUniversal = localAddress.to_string();
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std::string localAddressUniversal = localAddress.to_string();
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#endif
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if (localAddress.is_v4())
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{
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struct sockaddr_in inputAddress;
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if (localAddress.is_v4())
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{
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struct sockaddr_in inputAddress;
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inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr));
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if (GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
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== ERROR_BUFFER_OVERFLOW)
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{
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FREE (pAddresses);
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pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC (outBufLen);
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}
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dwRetVal = GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen);
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if (dwRetVal == NO_ERROR)
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{
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pCurrAddresses = pAddresses;
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while (pCurrAddresses)
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{
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PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
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pUnicast = pCurrAddresses->FirstUnicastAddress;
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if (pUnicast != nullptr)
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{
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for (int i = 0; pUnicast != nullptr; ++i)
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{
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LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
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struct sockaddr_in *localInterfaceAddress = (struct sockaddr_in*) lpAddr;
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if (localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr)
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{
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result = pAddresses->Mtu;
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FREE (pAddresses);
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pAddresses = nullptr;
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return result;
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}
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pUnicast = pUnicast->Next;
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}
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}
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else
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{
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LogPrint (eLogError, "GetMTU() has failed: not a unicast ipv4 address, this is not supported");
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}
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pCurrAddresses = pCurrAddresses->Next;
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if (GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
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== ERROR_BUFFER_OVERFLOW)
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{
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FREE (pAddresses);
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pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC (outBufLen);
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}
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dwRetVal = GetAdaptersAddresses (AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen);
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if (dwRetVal == NO_ERROR)
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{
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pCurrAddresses = pAddresses;
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while (pCurrAddresses)
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{
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PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
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pUnicast = pCurrAddresses->FirstUnicastAddress;
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if (pUnicast != nullptr)
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{
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for (int i = 0; pUnicast != nullptr; ++i)
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{
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LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
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struct sockaddr_in *localInterfaceAddress = (struct sockaddr_in*) lpAddr;
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if (localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr)
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{
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result = pAddresses->Mtu;
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FREE (pAddresses);
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pAddresses = nullptr;
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return result;
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}
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pUnicast = pUnicast->Next;
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}
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}
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else
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{
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LogPrint (eLogError, "GetMTU() has failed: not a unicast ipv4 address, this is not supported");
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}
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pCurrAddresses = pCurrAddresses->Next;
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}
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}
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else
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{
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{
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LogPrint (eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed");
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}
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}
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else if (localAddress.is_v6())
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{
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{
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struct sockaddr_in6 inputAddress;
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inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
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if (GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
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== ERROR_BUFFER_OVERFLOW)
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{
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{
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FREE (pAddresses);
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pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC(outBufLen);
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pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC (outBufLen);
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}
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dwRetVal = GetAdaptersAddresses (AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen);
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if (dwRetVal == NO_ERROR)
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{
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{
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bool found_address = false;
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pCurrAddresses = pAddresses;
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while (pCurrAddresses)
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{
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{
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PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
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pUnicast = pCurrAddresses->FirstUnicastAddress;
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if (pUnicast != nullptr)
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{
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{
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for (int i = 0; pUnicast != nullptr; ++i)
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{
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{
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LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
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struct sockaddr_in6 *localInterfaceAddress = (struct sockaddr_in6*) lpAddr;
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for (int j = 0; j != 8; ++j)
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{
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{
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if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j])
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{
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{
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break;
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}
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else
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{
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{
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found_address = true;
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}
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}
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if (found_address)
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{
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{
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result = pAddresses->Mtu;
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FREE (pAddresses);
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pAddresses = nullptr;
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@ -668,7 +668,7 @@ namespace net
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}
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}
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else
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{
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{
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LogPrint (eLogError, "GetMTU() has failed: not a unicast ipv6 address, this is not supported");
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}
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@ -677,20 +677,20 @@ namespace net
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}
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else
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{
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LogPrint (eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed");
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{
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LogPrint (eLogError, "GetMTU() has failed: enclosed GetAdaptersAddresses() call has failed");
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}
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}
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else
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{
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LogPrint (eLogError, "GetMTU() has failed: address family is not supported");
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{
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LogPrint (eLogError, "GetMTU() has failed: address family is not supported");
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}
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FREE (pAddresses);
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pAddresses = nullptr;
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LogPrint(eLogError, "GetMTU() error: control flow should never reach this line");
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return result;
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#endif
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#endif
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}
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}
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