VC implementation of the method to get the native MAC address

In this paper, vc6.0 operating environment is used as an example to achieve the function of MAC address.

The complete example code is as follows:

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

int getMAC(char * mac)   
{   
 NCB ncb;   
 typedef struct _ASTAT_   
 {
  ADAPTER_STATUS  adapt; 
  NAME_BUFFER  NameBuff  [30];   
 }ASTAT,  *  PASTAT;   
 ASTAT Adapter;   
  
 typedef struct _LANA_ENUM   
 {  //  le 
  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  :  %s  n",mac);  
 
 return 0;
}

Also note: Must be in the project - > Setting adds the library file "netapi32.lib".