windows从注册表获取ip配置信息

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windows从注册表获取ip配置信息

2024-07-13 11:25| 来源: 网络整理| 查看: 265

DNS的获取方式有多种：

这里提供一种方式是从注册表获取的：

在HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Adapters可以获取网卡的SettingID,

//HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Adapters bool GetAdaptersKeyName(std::list *listAdapters) { OutputDebugStringA("Get network config"); //获取网卡名称网卡名称，网卡别名 string strAdapterName,strAdapterAlias; HKEY hKey, hSubKey; if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SYSTEM\\CurrentControlSet\\services\\Tcpip\\Parameters\\Adapters"), 0, KEY_READ, &hKey) != ERROR_SUCCESS) return FALSE; DWORD dwIndex = 0; DWORD dwBufSize = 256; TCHAR szSubKey[256]; listAdapters->clear(); while(RegEnumKeyEx(hKey, dwIndex++, szSubKey, &dwBufSize, NULL, NULL, NULL, NULL) == ERROR_SUCCESS) { if(RegOpenKeyEx(hKey, szSubKey, 0, KEY_READ, &hSubKey) == ERROR_SUCCESS) { listAdapters->push_back(CString(szSubKey)); RegCloseKey(hSubKey); } dwBufSize = 256; } /* end of while */ RegCloseKey(hKey); return true; } 根据SettingID，再逐个查询获取到ip配置包含DNS的信息：

这里要查询 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Interfaces的SettingID下的内容

typedef struct tagNetworkCfg { TCHAR szIP[18]; TCHAR szNetmask[18]; TCHAR szGateway[18]; TCHAR szDns1[256]; TCHAR szDns2[18]; }NetworkCfg; bool GetNetworkCfg(NetworkCfg *cfg, CString strAdapterAlias) { HKEY hKey; BYTE lpData[256]; CString strKeyName = _T("SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\"); strKeyName += strAdapterAlias; if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, strKeyName, 0, KEY_READ, &hKey) != ERROR_SUCCESS) return FALSE; DWORD dwBufSize = 256; DWORD dwDataType; if(RegQueryValueEx(hKey, _T("DhcpIPAddress"), 0,&dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szIP,(LPCTSTR)lpData); else { if(RegQueryValueEx(hKey, _T("IPAddress"), 0, &dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szIP,(LPCTSTR)lpData); } dwBufSize = 256; if(RegQueryValueEx(hKey, _T("DhcpSubnetMask"), 0, &dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szNetmask,(LPCTSTR)lpData); else { if(RegQueryValueEx(hKey, _T("SubnetMask"), 0, &dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szNetmask,(LPCTSTR)lpData); } dwBufSize = 256; if(RegQueryValueEx(hKey, _T("DhcpDefaultGateway"), 0, &dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szGateway,(LPCTSTR)lpData); else { if(RegQueryValueEx(hKey, _T("DefaultGateway"), 0, &dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szGateway,(LPCTSTR)lpData); } dwBufSize = 256; if(RegQueryValueEx(hKey, _T("DhcpNameServer"), 0, &dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szDns1,(LPCTSTR)lpData); else { if(RegQueryValueEx(hKey, _T("NameServer"), 0, &dwDataType, lpData, &dwBufSize) == ERROR_SUCCESS) wcscpy(cfg->szDns1,(LPCTSTR)lpData); } RegCloseKey(hKey); return true; }引用头内容有： std::list listAdapters; GetAdaptersKeyName(&listAdapters); std::list networkCfgList; for (list::iterator iter = listAdapters.begin(); iter!=listAdapters.end();iter++) { CString strTemp = *iter; NetworkCfg cfg; GetNetworkCfg(&cfg, strTemp); } #include #include #include #pragma comment(lib,"Ws2_32.lib") #include #pragma comment(lib, "Iphlpapi.lib") using namespace std;

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windows从注册表获取ip配置信息

windows从注册表获取ip配置信息

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