获取指定网卡的MAC地址

来源：互联网发布：球心检测算法编辑：程序博客网时间：2024/05/22 10:48

由于终端设备多网卡使用的问题，以前使用Netbios()获取网卡MAC地址的方法可能导致不可靠的问题。
现推荐大家使用如下方法实现：
CString GetLicense(CString strMac)
{
    int P1=0, P2=0, P3=0, P4=0, P5=0, P6=0;
    sscanf(strMac, "% 02X% 02X% 02X% 02X% 02X% 02X", &P1, &P2, &P3, &P4, &P5, &P6);
    int nTemp = P1+P2+P3+P4+P5+P6;
    CString strAdd;
    strAdd.Format("% 02X% 02X", nTemp/6, nTemp%0xFF);
    return strMac+strAdd;
}

CString GetMacByName(CString strName)
{
    CString strName2=strName+":";

    char szFile[512], szCmd[512];
    memset(szFile, 0x00, sizeof(szFile));
    if(!GetSystemDirectory(szFile, sizeof(szFile)))
    {

      strcpy(szFile, "C:");
    }
    strcat(szFile, "\\ip.txt");
    strcpy(szCmd, "/c ipconfig /all >");
    strcat(szCmd, szFile);

    SHELLEXECUTEINFO ShExecInfo = {0};
    ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
    ShExecInfo.fMask = SEE_MASK_NOCLOSEPROCESS;
    ShExecInfo.lpFile = "cmd.exe";
    ShExecInfo.lpParameters = szCmd;
   ShExecInfo.nShow = SW_HIDE;
    ShellExecuteEx(&ShExecInfo);
    WaitForSingleObject(ShExecInfo.hProcess,INFINITE);
//    ShellExecute(NULL, "open", "cmd.exe", szCmd, NULL, SW_HIDE);

    FILE* fp = fopen(szFile, "r");
    if(!fp) return "";
    fseek(fp, 0, SEEK_END);
    int len = ftell(fp);
    char* pData=(char*)malloc(len+1);
    memset(pData, 0x00, len+1);
    fseek(fp, 0, SEEK_SET);
    fread(pData, 1, len, fp);
    fclose(fp);

    char* pPos=strstr(pData, strName2.GetBuffer(0));
    if(pPos)
    {
        char* pPos2=strstr(pPos, "Physical Address");
        if(pPos2)
        {
            pPos=strstr(pPos2, ": ");
            if(pPos)
            {
                pPos += 2;
               memset(szCmd, 0x00, sizeof(szCmd));
                memcpy(szCmd, pPos, 17);
                free(pData);
                CString strMac = szCmd;
                strMac.Replace("-", "");
                if(strMac.GetLength()==12) return strMac;
                return "";
            }
        }
    }
    free(pData);
    return "";
}

调用示例：
m_strMAC = GetMacByName("本地连接");
if(m_strMAC.GetLength()==12)
{
    m_strLicense = GetLicense(m_strMAC);
}
else
    m_strLicense = "";

0 0