VC获取本机IP、子网掩码、网关、计算广播地址等信息

短命女 2022-08-03 16:31 222阅读 0赞

# [VC获取本机IP、子网掩码、网关、计算广播地址等信息代码(通过读注册表)][VC_IP] #

重在思路  
\#pragma comment(lib, "ws2\_32.lib")  
\#include <iostream>  
\#include <cstdlib>  
\#include <string>  
\#include <vector>  
  
\#include <windows.h>  
  
using namespace std;  
  
typedef struct tagAdapterInfo  
\{   
string strName; // 适配器名称  
string strDriverDesc; // 适配器描述  
string strIP; // IP地址  
string strNetMask; // 子网掩码  
string strNetGate; // 网关  
string strBroadcastIp; // 广播地址  
string strS; // 测试用的  
\}ADAPTER\_INFO;  
  
BOOL GetAdapterInfo();  
BOOL RegGetIP(ADAPTER\_INFO \*pAI, LPCTSTR lpszAdapterName, int nIndex = 0);  
  
vector<ADAPTER\_INFO\*> AdapterInfoVector;  
  
int main()  
\{   
GetAdapterInfo();  
int i;  
for (i = 0;i < AdapterInfoVector.size();i++)  
\{   
cout << AdapterInfoVector\[i\]->strName << ":" << endl << endl;  
cout << " " << AdapterInfoVector\[i\]->strDriverDesc << endl;  
cout << " " << AdapterInfoVector\[i\]->strIP << endl;  
cout << " " << AdapterInfoVector\[i\]->strNetMask << endl;  
cout << " " << AdapterInfoVector\[i\]->strNetGate << endl;  
cout << " " << AdapterInfoVector\[i\]->strBroadcastIp << endl;  
cout << endl;  
  
\}  
::Sleep(10000);  
return 0;  
\}  
  
//—————————————————————–  
// 取得所有网卡信息  
//—————————————————————–  
BOOL GetAdapterInfo()  
\{   
// 这里的代码适合WINDOWS2000，对于NT需要读取HKEY\_LOCAL\_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards  
HKEY hKey, hSubKey, hNdiIntKey;  
  
if(RegOpenKeyEx(HKEY\_LOCAL\_MACHINE,  
"System\\\\CurrentControlSet\\\\Control\\\\Class\\\\\{4d36e972-e325-11ce-bfc1-08002be10318\}",  
0,  
KEY\_READ,  
&hKey) != ERROR\_SUCCESS)  
return FALSE;  
  
DWORD dwIndex = 0;  
DWORD dwBufSize = 256;  
DWORD dwDataType;  
char szSubKey\[256\];  
unsigned char szData\[256\];  
  
while(RegEnumKeyEx(hKey, dwIndex++, szSubKey, &dwBufSize, NULL, NULL, NULL, NULL) == ERROR\_SUCCESS)  
\{   
if(RegOpenKeyEx(hKey, szSubKey, 0, KEY\_READ, &hSubKey) == ERROR\_SUCCESS)  
\{   
if(RegOpenKeyEx(hSubKey, "Ndi\\\\Interfaces", 0, KEY\_READ, &hNdiIntKey) == ERROR\_SUCCESS)  
\{   
dwBufSize = 256;  
if(RegQueryValueEx(hNdiIntKey, "LowerRange", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
\{   
if(strstr((char\*)szData, "ethernet") != NULL)// 判断是不是以太网卡  
\{   
dwBufSize = 256;  
if(RegQueryValueEx(hSubKey, "DriverDesc", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
\{   
ADAPTER\_INFO \*pAI = new ADAPTER\_INFO;  
pAI->strDriverDesc = (LPCTSTR)szData;  
dwBufSize = 256;  
if(RegQueryValueEx(hSubKey, "NetCfgInstanceID", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
\{   
pAI->strS = (LPCTSTR)szData;  
RegGetIP(pAI, (LPCTSTR)szData);  
\}  
AdapterInfoVector.push\_back(pAI); // 加入到容器中  
\}  
\}  
\}  
RegCloseKey(hNdiIntKey);  
\}  
RegCloseKey(hSubKey);  
\}  
  
dwBufSize = 256;  
\} /\* end of while \*/  
  
RegCloseKey(hKey);  
return true;  
\}  
  
//—————————————————————–  
// 得到注册表中的IP信息  
// nIndex暂时未处理  
//—————————————————————–  
  
BOOL RegGetIP(ADAPTER\_INFO \*pAI, LPCTSTR lpszAdapterName, int nIndex/\* =0 \*/)  
\{   
//ASSERT(pAI);  
HKEY hKey, hSubKey, hNdiIntKey;  
  
string strKeyName = "SYSTEM\\\\CurrentControlSet\\\\Services\\\\Tcpip\\\\Parameters\\\\Interfaces\\\\";  
strKeyName += lpszAdapterName;  
if(RegOpenKeyEx(HKEY\_LOCAL\_MACHINE,  
strKeyName.c\_str(),  
0,  
KEY\_READ,  
&hKey) != ERROR\_SUCCESS)  
return FALSE;  
  
unsigned char szData\[256\];  
DWORD dwDataType, dwBufSize;  
dwBufSize = 256;  
if(RegQueryValueEx(hKey, "DhcpIPAddress", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
pAI->strIP = (LPCTSTR)szData;  
else\{   
if(RegQueryValueEx(hKey, "IPAddress", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
pAI->strIP = (LPCTSTR)szData;  
\}  
  
  
  
dwBufSize = 256;  
if(RegQueryValueEx(hKey, "DhcpSubnetMask", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
pAI->strNetMask = (LPCTSTR)szData;  
else  
\{   
if(RegQueryValueEx(hKey, "SubnetMask", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
pAI->strNetMask = (LPCTSTR)szData;  
\}  
  
  
dwBufSize = 256;  
if(RegQueryValueEx(hKey, "DhcpDefaultGateway", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
pAI->strNetGate = (LPCTSTR)szData;  
else  
\{   
if(RegQueryValueEx(hKey, "DefaultGateway", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
pAI->strNetGate = (LPCTSTR)szData;  
\}  
  
  
RegCloseKey(hKey);  
  
strKeyName = "SYSTEM\\\\ControlSet001\\\\Control\\\\Network";  
if(RegOpenKeyEx(HKEY\_LOCAL\_MACHINE,  
strKeyName.c\_str(),  
0,  
KEY\_READ,  
&hKey) != ERROR\_SUCCESS)  
return FALSE;  
char szSubKey\[256\];  
char szSubKey\_two\[256\];  
memset(szSubKey, 0, 256);  
DWORD dwIndex = 0;  
DWORD dwIndex\_two = 0;  
dwBufSize = 256;  
DWORD dwBufSize\_two = 256;  
pAI->strName = pAI->strDriverDesc;  
while(RegEnumKey(hKey, dwIndex++, szSubKey, dwBufSize) == ERROR\_SUCCESS)  
\{   
string strKeyName\_two;  
strKeyName\_two = strKeyName + "\\\\";  
strKeyName\_two += szSubKey;  
if(RegOpenKeyEx(hKey, szSubKey, 0, KEY\_READ, &hSubKey) == ERROR\_SUCCESS)  
\{   
while(RegEnumKey(hSubKey, dwIndex\_two++, szSubKey\_two, dwBufSize\_two) == ERROR\_SUCCESS)  
\{   
if (strstr(szSubKey\_two, lpszAdapterName) != NULL)  
\{   
strcat(szSubKey\_two, "\\\\Connection");  
if(RegOpenKeyEx(hSubKey, szSubKey\_two, 0, KEY\_READ, &hNdiIntKey) == ERROR\_SUCCESS)  
\{   
if(RegQueryValueEx(hNdiIntKey, "Name", 0, &dwDataType, szData, &dwBufSize) == ERROR\_SUCCESS)  
\{   
pAI->strName = (LPCTSTR)szData;  
break;  
\}  
  
RegCloseKey(hNdiIntKey);  
\}  
  
\}  
\}  
RegCloseKey(hSubKey);  
\}  
\}  
RegCloseKey(hKey);  
  
/\*  
算法：   
1. 子网掩码与IP地址进行位与运算，得处网络地址  
2. 网络地址 | (~子网掩码)，得出广播地址  
\*/  
in\_addr broadcast;  
broadcast.S\_un.S\_addr = (  
inet\_addr(pAI->strIP.c\_str())   
& inet\_addr(pAI->strNetMask.c\_str())  
)  
| (~inet\_addr(pAI->strNetMask.c\_str()));  
pAI->strBroadcastIp = inet\_ntoa(broadcast);  
return TRUE;  
\}

[VC_IP]: http://blog.csdn.net/aasmfox/article/details/24862207