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Network Adapter Information on Windows

 I was trying to get Network Adapter Information from the Windows platform. So I have used an old API GetAdaptersInfo API. I was not sure whether it will work for Windows 10 but I have written a small sample to run on my Windows 10 PC and to my surprise, it still works. Though Microsoft recommended using GetAdaptersAddresses API over GetAdaptersInfo API. It's a very small piece of code but the order headers are very important. If we do not follow the proper order the program won't compile.


#include <iostream>
#include <winsock2.h>
#include <iphlpapi.h>
#include <cassert>

#pragma comment(lib, "iphlpapi.lib")

void PrintMACAddress() 
DWORD _macAddress = 0;
IP_ADAPTER_INFO _adapterInfo[16];
DWORD dwBufLen = sizeof(_adapterInfo);
DWORD dwStatus = GetAdaptersInfo(_adapterInfo, &dwBufLen);

assert(dwStatus == ERROR_SUCCESS);

PIP_ADAPTER_INFO _pAdapterInfo = _adapterInfo;
char string[32];
sprintf_s(string, ("%02X-%02X-%02X-%02X-%02X-%02X"),
_pAdapterInfo->Address[0], _pAdapterInfo->Address[1],
_pAdapterInfo->Address[2], _pAdapterInfo->Address[3],
_pAdapterInfo->Address[4], _pAdapterInfo->Address[5]);
printf("Adapter Name: %s\n", _pAdapterInfo->AdapterName);

printf("MACAddress: %s\n", string);
                printf("Index: %d\n", _pAdapterInfo->Index);

                switch (_pAdapterInfo->Type) {
                case MIB_IF_TYPE_OTHER:
                    printf("Type: Other\n");
                case MIB_IF_TYPE_ETHERNET:
                    printf("Type: Ethernet\n");
                case MIB_IF_TYPE_TOKENRING:
                    printf("Type: Token Ring\n");
                case MIB_IF_TYPE_FDDI:
                    printf("Type: FDDI\n");
                case MIB_IF_TYPE_PPP:
                    printf("Type: PPP\n");
                case MIB_IF_TYPE_LOOPBACK:
                    printf("Type: Lookback\n");
                case MIB_IF_TYPE_SLIP:
                    printf("Type: Slip\n");
                    printf("Unknown type %ld\n", _pAdapterInfo->Type);
            printf("IP Address: %s\n\n", _pAdapterInfo->IpAddressList.IpAddress.String);
    _pAdapterInfo = _pAdapterInfo->Next;
} while (_pAdapterInfo);



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