bool GetMacByGetAdaptersAddresses(std::string& macOUT)

        bool ret = false;

 

        ULONG outBufLen = sizeof(IP_ADAPTER_ADDRESSES);

        PIP_ADAPTER_ADDRESSES pAddresses = (IP_ADAPTER_ADDRESSES*)malloc(outBufLen);

        if (pAddresses == NULL)

                return false;

        // Make an initial call to GetAdaptersAddresses to get the necessary size into the ulOutBufLen variable

        if (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, pAddresses, &outBufLen) == ERROR_BUFFER_OVERFLOW)

        {

                free(pAddresses);

                pAddresses = (IP_ADAPTER_ADDRESSES*)malloc(outBufLen);

                if (pAddresses == NULL)

                        return false;

        }

 

        if (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, pAddresses, &outBufLen) == NO_ERROR)

        {

                // If successful, output some information from the data we received

                for (PIP_ADAPTER_ADDRESSES pCurrAddresses = pAddresses; pCurrAddresses != NULL; pCurrAddresses = pCurrAddresses->Next)

                {

                        // 确保MAC地址的长度为 00-00-00-00-00-00

                        if (pCurrAddresses->PhysicalAddressLength != 6)

                                continue;

                        char acMAC[32];

                        sprintf_s(acMAC, "%02X-%02X-%02X-%02X-%02X-%02X",

                                int(pCurrAddresses->PhysicalAddress[0]),

                                int(pCurrAddresses->PhysicalAddress[1]),

                                int(pCurrAddresses->PhysicalAddress[2]),

                                int(pCurrAddresses->PhysicalAddress[3]),

                                int(pCurrAddresses->PhysicalAddress[4]),

                                int(pCurrAddresses->PhysicalAddress[5]));

                        macOUT = acMAC;

                        ret = true;

                        break;

                }

        }

 

        free(pAddresses);

        return ret;