[VC++]獲取MAC地址

#include "stdafx.h"
#include <stdio.h> 
#include <stdlib.h> 
#include <httpext.h> 
#include <windef.h> 
#include <Nb30.h> 

#pragma comment(lib,"netapi32.lib") 

int getMAC(char * mac) 
{ 
	NCB ncb;
	typedef struct _ASTAT_
	{
		ADAPTER_STATUS adapt;
		NAME_BUFFER NameBuff [30];
	}ASTAT,*PASTAT;
	
	ASTAT Adapter; 
	
	typedef struct _LANA_ENUM
	{
		UCHAR length;
		UCHAR lana[MAX_LANA];
	}LANA_ENUM;
	
	LANA_ENUM lana_enum; 
	UCHAR uRetCode;
	memset(&ncb, 0, sizeof(ncb));
	memset(&lana_enum, 0, sizeof(lana_enum)); 
	ncb.ncb_command = NCBENUM;
	ncb.ncb_buffer = (unsigned char *)&lana_enum;
	ncb.ncb_length = sizeof(LANA_ENUM);
	uRetCode = Netbios(&ncb);
	
	if(uRetCode != NRC_GOODRET) 
		return uRetCode; 
	
	for(int lana=0; lana<lana_enum.length; lana++) 
	{
		ncb.ncb_command = NCBRESET;
		ncb.ncb_lana_num = lana_enum.lana[lana];
		uRetCode = Netbios(&ncb); 
		if(uRetCode == NRC_GOODRET)
			break; 
	} 
	
	if(uRetCode != NRC_GOODRET)
		return uRetCode; 
	
	memset(&ncb, 0, sizeof(ncb));
	ncb.ncb_command = NCBASTAT;
	ncb.ncb_lana_num = lana_enum.lana[0];
	strcpy((char*)ncb.ncb_callname, "*");
	ncb.ncb_buffer = (unsigned char *)&Adapter;
	ncb.ncb_length = sizeof(Adapter);
	uRetCode = Netbios(&ncb); 
	
	if(uRetCode != NRC_GOODRET)
		return uRetCode;
	
	sprintf(mac,"%02X-%02X-%02X-%02X-%02X-%02X",
		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; 
} 

int main(int argc, char* argv[])
{
	char mac[200]; 
	getMAC(mac); 
	printf("MAC Address : %s \n",mac); 
	return 0;
}