diff --git a/miniupnpc/minissdpc.c b/miniupnpc/minissdpc.c index cf8aad6..b4a26e8 100644 --- a/miniupnpc/minissdpc.c +++ b/miniupnpc/minissdpc.c @@ -576,7 +576,17 @@ ssdpDiscoverDevices(const char * const deviceTypes[], * in order to give this ip to setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF) */ if(!ipv6) { DWORD ifbestidx; +#if _WIN32_WINNT >= 0x0600 // _WIN32_WINNT_VISTA + // While we don't need IPv6 support, the IPv4 only funciton is not available in UWP apps. + SOCKADDR_IN destAddr; + memset(&destAddr, 0, sizeof(destAddr)); + destAddr.sin_family = AF_INET; + destAddr.sin_addr.s_addr = inet_addr("223.255.255.255"); + destAddr.sin_port = 0; + if (GetBestInterfaceEx((struct sockaddr *)&destAddr, &ifbestidx) == NO_ERROR) { +#else if (GetBestInterface(inet_addr("223.255.255.255"), &ifbestidx) == NO_ERROR) { +#endif DWORD dwRetVal = NO_ERROR; PIP_ADAPTER_ADDRESSES pAddresses = NULL; ULONG outBufLen = 15360;