Re: NMAP and MAC Addresses

["Sean" <news_nospam_ () warnocksolutions com>]

A beggining.  Sorry I cannot do any better than this as I am not a 
programmer but this might be enough for someone else to get started.  This 
came from Microsoft's MSDN site from the following UR: 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/iphlp/iphlp/sendarp.asp
I hope this helps and I am sorry I cannot do more.

Sean


//
// Link with ws2_32.lib and iphlpapi.lib
//

#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#include <iphlpapi.h>


int __cdecl main()
{
   HRESULT hr;
   IPAddr  ipAddr;
   ULONG   pulMac[2];
   ULONG   ulLen;

   ipAddr = inet_addr ("192.168.25.31");
   memset (pulMac, 0xff, sizeof (pulMac));
   ulLen = 6;

   hr = SendARP (ipAddr, 0, pulMac, &ulLen);
   printf ("Return %08x, length %8d\n", hr, ulLen);

   size_t i, j;
   char * szMac = new char[ulLen*3];
   PBYTE pbHexMac = (PBYTE) pulMac;

   //
   // Convert the binary MAC address into human-readable
   //
   for (i = 0, j = 0; i < ulLen - 1; ++i) {
       j += sprintf (szMac + j, "%02X:", pbHexMac[i]);
   }

   sprintf (szMac + j, "%02X", pbHexMac[i]);
   printf ("MAC address %s\n", szMac);

   delete [] szMac;

   return 0;
} 


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