windows从注册表获取ip配置信息

来源：互联网发布：ireport java 编辑：程序博客网时间：2024/06/09 20:26

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\Adaptersbool GetAdaptersKeyName(std::list<CString> *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<CString> listAdapters;GetAdaptersKeyName(&listAdapters);std::list<NetworkCfg> networkCfgList;for (list<CString>::iterator iter = listAdapters.begin(); iter!=listAdapters.end();iter++){CString strTemp = *iter;NetworkCfg cfg;GetNetworkCfg(&cfg, strTemp);}

#include <string>#include <list>#include <WinSock2.h>#pragma comment(lib,"Ws2_32.lib")#include <Iphlpapi.h>#pragma comment(lib, "Iphlpapi.lib")using namespace std;

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