获取MAC地址

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include <conio.h>
#include <windows.h>
#include <wincon.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <nb30.h>

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

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

ASTAT Adapter;
//----------------------------------------------------------------------------
void getmac_one(int lana_num)
{
    NCB ncb;
    UCHAR uRetCode;

    memset(&ncb,0,sizeof(ncb));
    ncb.ncb_command = NCBRESET;
    ncb.ncb_lana_num = lana_num;  
    // 指定网卡号

 // 首先对选定的网卡发送一个NCBRESET命令，以便进行初始化
    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 = lana_num;     // 指定网卡号

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

// 指定返回的信息存放的变量
    ncb.ncb_length = sizeof(Adapter);

// 接着，可以发送NCBASTAT命令以获取网卡的信息
    uRetCode = Netbios(&ncb);
    printf( "The NCBASTAT return code is: 0x%x /n", uRetCode );
    if (uRetCode == 0)
    {

// 把网卡MAC地址格式化成常用的16进制形式，如0010-A4E4-5802
printf("The Ethernet Number[%d]is: %02X-%02X-%02X-%02X-%02X-%02X/n",
  lana_num,
  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]);
    }
}

//----------------------------------------------------------------------------
#pragma argsused
int main(int argc, char* argv[])
{
    NCB ncb;
    UCHAR uRetCode;
    LANA_ENUM lana_enum;

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

    ncb.ncb_buffer = (unsigned char *)&lana_enum;
    ncb.ncb_length = sizeof(lana_enum);

    // 向网卡发送NCBENUM命令，以获取当前机器的网卡信息，如有多少个网卡、每张网卡的编号等
        uRetCode = Netbios(&ncb);
        printf("The NCBENUM return code is: 0x%x /n", uRetCode );
        if (uRetCode == 0)
        {
                printf("Ethernet Count is : %d/n/n", lana_enum.length);
                for (int i=0; i<lana_enum.length; ++i)
                    getmac_one(lana_enum.lana[i]);
        }
        getch();
        return 0;
}
//---------------------------------------------------------------------------