Date Type about NET_IF_NETWORK_GUID

Question

Hi~
   I want to read network interface GUID value using GetAdaptersAddresses function , and all related information will be returned in the structure IP_ADAPTER_ADDRESSES, NetworkGuid is one of its memebers.
  The codes:

do {
        pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
        if (pAddresses == NULL) {
            printf
                ("Memory allocation failed for IP_ADAPTER_ADDRESSES struct\n");
            exit(1);
        }
        dwRetVal =
            GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen);
        if (dwRetVal == ERROR_BUFFER_OVERFLOW) {
            FREE(pAddresses);
            pAddresses = NULL;
        } else {
            break;
        }
        Iterations++;
    } while ((dwRetVal == ERROR_BUFFER_OVERFLOW) && (Iterations < MAX_TRIES));
    if (dwRetVal == NO_ERROR) {
        // If successful, output some information from the data we received
        pCurrAddresses = pAddresses;
        while (pCurrAddresses) {
      printf("THe guid is %???", pCurrAddresses->NetworkGuid);//the type is
}

I don't know how to output the GUID values correctly, it should be like this: GUID: b568ee76-6d17-4a3a-a2f5-269c52fd6de7

THX
Leyond

Answer 1

Try this -

char szBuf[64];

sprintf_s(szBuf, 64, "{%08x-%04x-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X}",
    pCurrAddresses->NetworkGuid->Data1, pCurrAddresses->NetworkGuid->Data2, pCurrAddresses->NetworkGuid->Data3,
    pCurrAddresses->NetworkGuid->Data4[0], pCurrAddresses->NetworkGuid->Data4[1],
    pCurrAddresses->NetworkGuid->Data4[2], pCurrAddresses->NetworkGuid->Data4[3],
    pCurrAddresses->NetworkGuid->Data4[4], pCurrAddresses->NetworkGuid->Data4[5],
    pCurrAddresses->NetworkGuid->Data4[6], pCurrAddresses->NetworkGuid->Data4[7]);

printf("%s", szBuf);

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«_Superman_»
Microsoft MVP (Visual C++)

Answer 2

Thanks very much~

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Work and Smile