得到网卡编号(MAC地址)？

[问题提出]
  如何得到网卡编号(MAC地址)？
  [解决方法]
  用下面的代码实现：
  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;