怎么取得本机的MAC地址?

sorry，没注意看我有的就是用netbios做的:(

typedef struct _ASTAT_
{
ADAPTER_STATUS adapt;
NAME_BUFFER    NameBuff[30];
} ASTAT, * PASTAT;.........................................................
void CGetMACAddressDlg::OnGet()
{
CString strIP;
GetLocalIPAddress(strIP);
MessageBox(GetMacAddress(strIP));

}CString CGetMACAddressDlg::GetMacAddress(CString sNetBiosName)
{    ASTAT Adapter;

    NCB ncb;
    UCHAR uRetCode;

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

    uRetCode = Netbios(&ncb);

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

    sNetBiosName.MakeUpper();

    FillMemory(ncb.ncb_callname, NCBNAMSZ - 1, 0x20);

    strcpy((char *)ncb.ncb_callname, (LPCTSTR) sNetBiosName);

    ncb.ncb_callname[sNetBiosName.GetLength()] = 0x20;
    ncb.ncb_callname[NCBNAMSZ] = 0x0;

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

    uRetCode = Netbios(&ncb);

    CString sMacAddress;

    if (uRetCode == 0)
    {
sMacAddress.Format(_T("%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 sMacAddress;
}BOOL CGetMACAddressDlg::GetLocalIPAddress(CString & sIP)
{
AfxSocketInit();
CSocket soc;
soc.Create(NULL);
char szHostname[256];

if (gethostname(szHostname, sizeof(szHostname)))
{
TRACE(_T("Failed in call to gethostname, WSAGetLastError returns %d\n"), WSAGetLastError());
return FALSE;
}

//get host information from the host name HOSTENT* pHostEnt = gethostbyname(szHostname);
if (pHostEnt == NULL)
{
TRACE(_T("Failed in call to gethostbyname, WSAGetLastError returns %d\n"), WSAGetLastError());
return FALSE;
}

//check the length of the IP adress
if (pHostEnt->h_length != 4)
{
TRACE(_T("IP address returned is not 32 bits !!\n"));
return FALSE;
}

//call the virtual callback function in a loop
int nAdapter = 0;
in_addr address;
CopyMemory(&address.S_un.S_addr, pHostEnt->h_addr_list[nAdapter], pHostEnt->h_length);
//bContinue = EnumCallbackFunction(nAdapter, address);

sIP.Format(_T("%d.%d.%d.%d"), address.S_un.S_un_b.s_b1, address.S_un.S_un_b.s_b2, address.S_un.S_un_b.s_b3, address.S_un.S_un_b.s_b4);
//   AfxMessageBox(sIP); soc.Close();

return TRUE;}

除了用不可靠的NetBios,还有没有其它的办法? Windows会不会把MAC地址写到注册表里?

我搜过了,用的都是NetBios和SendARP.大侠救命啊,很急.

ZT第一种方法使用Microsoft的Netbios API。这是一套通过Winsock提供底层网络支持的命令。使用Netbios的最大缺点是您必须在系统中安装了Netbios服务(如果您在windows网络中启用了文件共享的话，这就不是问题了)。除此此外，这种方法又快又准确。Netbios API只包括了一个函数，就叫做Netbios。这个函数使用网络控制块(network control block)结构作为参数，这个结构告诉函数要做什么。结构的定义如下：
  typedef struct _NCB {
    UCHAR  ncb_command;
    UCHAR  ncb_retcode;
    UCHAR  ncb_lsn;
    UCHAR  ncb_num;
    PUCHAR ncb_buffer;
    WORD   ncb_length;
    UCHAR  ncb_callname[NCBNAMSZ];
    UCHAR  ncb_name[NCBNAMSZ];
    UCHAR  ncb_rto;
    UCHAR  ncb_sto;
    void (CALLBACK *ncb_post) (struct _NCB *);
    UCHAR  ncb_lana_num;
    UCHAR  ncb_cmd_cplt;
#ifdef _WIN64
    UCHAR  ncb_reserve[18];
#else
    UCHAR  ncb_reserve[10];
#endif
    HANDLE ncb_event;
} NCB, *PNCB; 重点在于ncb_command 成员。这个成员告诉Netbios该作什么。我们使用三个命令来探测MAC地址。他们在MSDN的定义如下：
命令描述：
NCBENUM Windows NT/2000: 列举系统中网卡的数量。使用此命令后，ncb_buffer成员指向由LANA_ENUM结构填充的缓冲区。
NCBENUM 不是标准的 NetBIOS 3.0 命令。NCBRESET 重置网卡。网卡在接受新的NCB命令之前必须重置。
NCBASTAT 接受本地或远程接口卡的状态。使用此命令后，ncb_buffer成员指向由ADAPTER_STATUS结构填充的缓冲区，随后是NAME_BUFFER结构的数组。下面就是取得您系统MAC地址的步骤：
1》列举所有的接口卡。
2》重置每块卡以取得它的正确信息。
3》查询接口卡，取得MAC地址并生成标准的冒号分隔格式。下面就是实例源程序。
netbios.cpp#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string>using namespace std;
#define bzero(thing,sz) memset(thing,0,sz)bool GetAdapterInfo(int adapter_num, string &mac_addr)
{
  // 重置网卡，以便我们可以查询
  NCB Ncb;
  memset(&Ncb, 0, sizeof(Ncb));
  Ncb.ncb_command = NCBRESET;
  Ncb.ncb_lana_num = adapter_num;
  if (Netbios(&Ncb) != NRC_GOODRET) {
    mac_addr = "bad (NCBRESET): ";
    mac_addr += string(Ncb.ncb_retcode);
    return false;
  }  // 准备取得接口卡的状态块
  bzero(&Ncb,sizeof(Ncb);
  Ncb.ncb_command = NCBASTAT;
  Ncb.ncb_lana_num = adapter_num;
  strcpy((char *) Ncb.ncb_callname, "*");
  struct ASTAT
  {
    ADAPTER_STATUS adapt;
    NAME_BUFFER NameBuff[30];
  } Adapter;
  bzero(&Adapter,sizeof(Adapter));
  Ncb.ncb_buffer = (unsigned char *)&Adapter;
  Ncb.ncb_length = sizeof(Adapter);  // 取得网卡的信息，并且如果网卡正常工作的话，返回标准的冒号分隔格式。
  if (Netbios(&Ncb) == 0)
  {
    char acMAC[18];
    sprintf(acMAC, "%02X:%02X:%02X:%02X:%02X:%02X",
            int (Adapter.adapt.adapter_address[0]),
            int (Adapter.adapt.adapter_address[1]),
            int (Adapter.adapt.adapter_address[2]),
            int (Adapter.adapt.adapter_address[3]),
            int (Adapter.adapt.adapter_address[4]),
            int (Adapter.adapt.adapter_address[5]));
    mac_addr = acMAC;
    return true;
  }
  else
  {
    mac_addr = "bad (NCBASTAT): ";
    mac_addr += string(Ncb.ncb_retcode);
    return false;
  }
}int main()
{
  // 取得网卡列表
  LANA_ENUM AdapterList;
  NCB Ncb;
  memset(&Ncb, 0, sizeof(NCB));
  Ncb.ncb_command = NCBENUM;
  Ncb.ncb_buffer = (unsigned char *)&AdapterList;
  Ncb.ncb_length = sizeof(AdapterList);
  Netbios(&Ncb);  // 取得本地以太网卡的地址
  string mac_addr;
  for (int i = 0; i < AdapterList.length - 1; ++i)
  {
    if (GetAdapterInfo(AdapterList.lana[i], mac_addr))
    {
      cout << "Adapter " << int (AdapterList.lana[i]) <<
              "'s MAC is " << mac_addr << endl;
    }
    else
    {
      cerr << "Failed to get MAC address! Do you" << endl;
      cerr << "have the NetBIOS protocol installed?" << endl;
      break;
    }
  }  return 0;
}

第二种方法－使用COM GUID API
这种方法使用COM API创建一个GUID(全局唯一标识符)并从那里继承MAC地址。GUID通常用来标识COM组件以及系统中的其他对象。它们是由MAC地址(结合其他东西)计算得来的，表面上MAC地址就包含在其中。我说表面上是因为事实上并没有包含。
我提供这种方法更多的是为了作为反面教材。您也许用这种方法能够得到MAC地址，但有时候您只会得到随机的十六进制数值。
下面的例子十分简单，无需多讲。我们使用CoCreateGuid创建GUID，并将最后六个字节放入字符串中。它们可能是MAC地址，但并不是必然的。uuid.cpp
#include <windows.h>
#include <iostream>
#include <conio.h>using namespace std;int main()
{
    cout << "MAC address is: ";    // 向COM要求一个UUID。如果机器中有以太网卡，
    // UUID最后的六个字节(Data4的2－7字节)应该是本地以太网卡的MAC地址。
    GUID uuid;
    CoCreateGuid(&uuid);
    // Spit the address out
    char mac_addr[18];
    sprintf(mac_addr,"%02X:%02X:%02X:%02X:%02X:%02X",
            uuid.Data4[2],uuid.Data4[3],uuid.Data4[4],
            uuid.Data4[5],uuid.Data4[6],uuid.Data4[7]);
    cout << mac_addr << endl;
    getch();
    return 0;
}

第三种方法－使用SNMP扩展API
我要讨论的第三种方法是使用Windows的SNMP(简单网络管理协议)扩展来取得MAC地址。在我的经验里，这个协议很简单。代码也是直勾勾的向前的。基本步骤和Netbios相同：
1》取得网卡列表
2》查询每块卡的类型和MAC地址
3》保存当前网卡
我个人对SNMP了解不多，但如我刚刚所言，代码十分清楚。snmp.cpp
#include <snmp.h>
#include <conio.h>
#include <stdio.h>typedef bool(WINAPI * pSnmpExtensionInit) (
        IN DWORD dwTimeZeroReference,
        OUT HANDLE * hPollForTrapEvent,
        OUT AsnObjectIdentifier * supportedView);typedef bool(WINAPI * pSnmpExtensionTrap) (
        OUT AsnObjectIdentifier * enterprise,
        OUT AsnInteger * genericTrap,
        OUT AsnInteger * specificTrap,
        OUT AsnTimeticks * timeStamp,
        OUT RFC1157VarBindList * variableBindings);typedef bool(WINAPI * pSnmpExtensionQuery) (
        IN BYTE requestType,
        IN OUT RFC1157VarBindList * variableBindings,
        OUT AsnInteger * errorStatus,
        OUT AsnInteger * errorIndex);typedef bool(WINAPI * pSnmpExtensionInitEx) (
        OUT AsnObjectIdentifier * supportedView);void main()
{
  HINSTANCE m_hInst;
  pSnmpExtensionInit m_Init;
  pSnmpExtensionInitEx m_InitEx;
  pSnmpExtensionQuery m_Query;
  pSnmpExtensionTrap m_Trap;
  HANDLE PollForTrapEvent;
  AsnObjectIdentifier SupportedView;
  UINT OID_ifEntryType[] = {1, 3, 6, 1, 2, 1, 2, 2, 1, 3};
  UINT OID_ifEntryNum[] = {1, 3, 6, 1, 2, 1, 2, 1};
  UINT OID_ipMACEntAddr[] = {1, 3, 6, 1, 2, 1, 2, 2, 1, 6};
  AsnObjectIdentifier MIB_ifMACEntAddr =
    { sizeof(OID_ipMACEntAddr)  sizeof(UINT), OID_ipMACEntAddr };
  AsnObjectIdentifier MIB_ifEntryType =
    {sizeof(OID_ifEntryType)  sizeof(UINT), OID_ifEntryType};
  AsnObjectIdentifier MIB_ifEntryNum =
    {sizeof(OID_ifEntryNum)  sizeof(UINT), OID_ifEntryNum};
  RFC1157VarBindList varBindList;
  RFC1157VarBind varBind[2];
  AsnInteger errorStatus;
  AsnInteger errorIndex;
  AsnObjectIdentifier MIB_NULL = {0, 0};
  int ret;
  int dtmp;
  int i = 0, j = 0;
  bool found = false;
  char TempEthernet[13];
  m_Init = NULL;
  m_InitEx = NULL;
  m_Query = NULL;
  m_Trap = NULL;  /* 载入SNMP DLL并取得实例句柄 */
  m_hInst = LoadLibrary("inetmib1.dll");
  if (m_hInst < (HINSTANCE) HINSTANCE_ERROR)
  {
    m_hInst = NULL;
    return;
  }
  m_Init =
    (pSnmpExtensionInit) GetProcAddress(m_hInst, "SnmpExtensionInit");
  m_InitEx =
    (pSnmpExtensionInitEx) GetProcAddress(m_hInst,
                                          "SnmpExtensionInitEx");
  m_Query =
    (pSnmpExtensionQuery) GetProcAddress(m_hInst,
                                         "SnmpExtensionQuery");
  m_Trap =
    (pSnmpExtensionTrap) GetProcAddress(m_hInst, "SnmpExtensionTrap");
  m_Init(GetTickCount(), &PollForTrapEvent, &SupportedView);  /* 初始化用来接收m_Query查询结果的变量列表 */
  varBindList.list = varBind;
  varBind[0].name = MIB_NULL;
  varBind[1].name = MIB_NULL;  /* 在OID中拷贝并查找接口表中的入口数量 */
  varBindList.len = 1;        /* Only retrieving one item */
  SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryNum);
  ret =
    m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
            &errorIndex);
  printf("# of adapters in this system : %in",
       varBind[0].value.asnValue.number);
  varBindList.len = 2;  /* 拷贝OID的ifType－接口类型 */
  SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryType);  /* 拷贝OID的ifPhysAddress－物理地址 */
  SNMP_oidcpy(&varBind[1].name, &MIB_ifMACEntAddr);  do
  {    /* 提交查询，结果将载入 varBindList。
       可以预料这个循环调用的次数和系统中的接口卡数量相等 */
    ret =
      m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
              &errorIndex);
    if (!ret)
      ret = 1;
    else
        /* 确认正确的返回类型 */
      ret =
          SNMP_oidncmp(&varBind[0].name, &MIB_ifEntryType,
                       MIB_ifEntryType.idLength); if (!ret) {
    j++;
    dtmp = varBind[0].value.asnValue.number;
    printf("Interface #%i type : %in", j, dtmp);    /* Type 6 describes ethernet interfaces */
    if (dtmp == 6)
    {      /* 确认我们已经在此取得地址 */
      ret =
          SNMP_oidncmp(&varBind[1].name, &MIB_ifMACEntAddr,
                       MIB_ifMACEntAddr.idLength);
      if ((!ret) && (varBind[1].value.asnValue.address.stream != NULL))
      {
        if((varBind[1].value.asnValue.address.stream[0] == 0x44)
          && (varBind[1].value.asnValue.address.stream[1] == 0x45)
          && (varBind[1].value.asnValue.address.stream[2] == 0x53)
          && (varBind[1].value.asnValue.address.stream[3] == 0x54)
          && (varBind[1].value.asnValue.address.stream[4] == 0x00))
        {
          /* 忽略所有的拨号网络接口卡 */
          printf("Interface #%i is a DUN adaptern", j);
          continue;
        }
        if ((varBind[1].value.asnValue.address.stream[0] == 0x00)
            && (varBind[1].value.asnValue.address.stream[1] == 0x00)
            && (varBind[1].value.asnValue.address.stream[2] == 0x00)
            && (varBind[1].value.asnValue.address.stream[3] == 0x00)
            && (varBind[1].value.asnValue.address.stream[4] == 0x00)
            && (varBind[1].value.asnValue.address.stream[5] == 0x00))
        {
          /* 忽略由其他的网络接口卡返回的NULL地址 */
          printf("Interface #%i is a NULL addressn", j);
          continue;
        }
        sprintf(TempEthernet, "%02x%02x%02x%02x%02x%02x",
                varBind[1].value.asnValue.address.stream[0],
                varBind[1].value.asnValue.address.stream[1],
                varBind[1].value.asnValue.address.stream[2],
                varBind[1].value.asnValue.address.stream[3],
                varBind[1].value.asnValue.address.stream[4],
                varBind[1].value.asnValue.address.stream[5]);
        printf("MAC Address of interface #%i: %sn", j,
               TempEthernet);}
      }
    }
  } while (!ret);         /* 发生错误终止。 */
  getch();  FreeLibrary(m_hInst);
  /* 解除绑定 */
  SNMP_FreeVarBind(&varBind[0]);
  SNMP_FreeVarBind(&varBind[1]);
}

安装一个platform sdk可以得到 IP helper，然后运用里面的GetAdaptersInfo() 就可以得到网卡的很多信息，当然也包括了MAC地址

使用GetAdaptersInfo()获取多块网卡的MAC地址，实现如下：（需要安装SDK）#include <Iphlpapi.h>IP_ADAPTER_INFO * FixedInfo;
ULONG ulOutBufLen;
DWORD dwRetVal;
CString strMsg;
CString strOutPut;
FixedInfo = (IP_ADAPTER_INFO *) GlobalAlloc( GPTR, sizeof( IP_ADAPTER_INFO ));
ulOutBufLen = sizeof( IP_ADAPTER_INFO );if( ERROR_BUFFER_OVERFLOW == GetAdaptersInfo(FixedInfo,&ulOutBufLen))
{
GlobalFree( FixedInfo );
FixedInfo =(IP_ADAPTER_INFO *) GlobalAlloc( GPTR, ulOutBufLen );
}
if ( dwRetVal = GetAdaptersInfo( FixedInfo, &ulOutBufLen ) )
{
strMsg.Format(
"Call to GetAdaptersInfo failed. Return Value: %08x\r\n",
dwRetVal );
strOutPut+=strMsg;
}
else
{
do
{
strMsg.Format(
"MAC Address: %02x-%02x-%02x-%02x-%02x-%02x\r\n",
FixedInfo->Address[0],
FixedInfo->Address[1],
FixedInfo->Address[2],
FixedInfo->Address[3],
FixedInfo->Address[4],
FixedInfo->Address[5]);
strOutPut+=strMsg;
strOutPut+="\r\n--------------------------------------\r\n";
FixedInfo = FixedInfo->Next;
} while (FixedInfo);
}AfxMessageBox(strOutPut);

调试易

怎么取得本机的MAC地址?

解决方案 »