getcomputermac.cpp

mac 地址唯一性的大家都知道.程序可以获取网络中指定IP计算机的Mac地址.

// GetComputerMac.cpp : Defines the entry point for the console application.
//
/*
#include "stdafx.h"
#include <windows.h>
#include <wincon.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>

#include <string.h>
//link  Netapi32.lib 

typedef struct _ASTAT_
{
    ADAPTER_STATUS adapt;
    NAME_BUFFER    NameBuff [30];
}ASTAT, * PASTAT;

ASTAT Adapter;

int main(int argc, char* argv[])
{
    NCB ncb;
    UCHAR uRetCode;
    char NetName[50];

    memset( &ncb, 0, sizeof(ncb) );
    ncb.ncb_command = NCBRESET;
    ncb.ncb_lana_num = 0;

    uRetCode = Netbios( &ncb );
    printf( "The NCBRESET return code is: 0x%x \n", uRetCode );

    memset( &ncb, 0, sizeof(ncb) );
    ncb.ncb_command = NCBASTAT;
    ncb.ncb_lana_num = 0;

    strcpy((char*) ncb.ncb_callname,  "*               " );
    ncb.ncb_buffer = (unsigned char *) &Adapter;
    ncb.ncb_length = sizeof(Adapter);

    uRetCode = Netbios( &ncb );
    printf( "The NCBASTAT return code is: 0x%x \n", uRetCode );
    if ( uRetCode == 0 )
    {
        printf( "The Ethernet Number is: %02x%02x%02x%02x%02x%02x\n",
                Adapter.adapt.adapter_address[0],
                Adapter.adapt.adapter_address[1],
                Adapter.adapt.adapter_address[2],
                Adapter.adapt.adapter_address[3],
                Adapter.adapt.adapter_address[4],
                Adapter.adapt.adapter_address[5] );
    }

	return 0;
}
*/
#include "stdafx.h"
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#include <iphlpapi.h>
//link  ws2_32.lib iphlpapi.lib

int main(int argc, char* argv[])
{
	
    HRESULT hr;
    IPAddr  ipAddr;
    ULONG   pulMac[2];
    ULONG   ulLen;

    ipAddr = inet_addr ("192.168.0.151");
    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;
}