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Use GetBestInterfaceEx when available. 

Since GetBestInterface is not available in UWP apps.

GetBestInterface:
https://docs.microsoft.com/en-us/windows/win32/api/iphlpapi/nf-iphlpapi-getbestinterface#requirements

GetBestInterfaceEx:
https://docs.microsoft.com/en-us/windows/win32/api/iphlpapi/nf-iphlpapi-getbestinterfaceex#requirements
This commit is contained in:
Fabio Alessandrelli 2021-03-18 16:48:03 +01:00
parent c1b64740fb
commit 3a08dd4b89
1 changed files with 10 additions and 0 deletions
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10
miniupnpc/minissdpc.c
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@ -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;