getWifiSubmask method
Obtains the subnet mask of the connected wifi network
Implementation
@override
Future<String?> getWifiSubmask() {
return Future<String?>.value(query((pGuid, pAttributes) {
final ulSize = calloc<ULONG>();
Pointer<IP_ADAPTER_ADDRESSES_LH> pIpAdapterAddress = nullptr;
try {
GetAdaptersAddresses(AF_INET, 0, nullptr, nullptr, ulSize);
pIpAdapterAddress = HeapAlloc(GetProcessHeap(), 0, ulSize.value).cast();
GetAdaptersAddresses(AF_INET, 0, nullptr, pIpAdapterAddress, ulSize);
final pAddr = getAdapterAddress(pGuid, pIpAdapterAddress);
if (pAddr == null) return null;
return extractSubnet(pAddr);
} finally {
free(ulSize);
if (pIpAdapterAddress != nullptr) free(pIpAdapterAddress);
}
}));
}