mfc--修改Dhcp没关闭导致ip设置不成功的问题

最新推荐文章于 2023-08-30 10:00:00 发布

原创最新推荐文章于 2023-08-30 10:00:00 发布 · 463 阅读

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本文介绍了一个用于通过注册表设置适配器IP地址、子网掩码及默认网关的C++函数实现。该函数利用Windows注册表接口进行操作，能够为指定的网络适配器配置静态IP地址。

BOOL CSetAdapter::RegSetIP(LPCTSTR lpszAdapterName, LPCTSTR pIPAddress, LPCTSTR pNetMask, LPCTSTR pNetGate)
{
HKEY hKey;
DWORD Bdhcp = 0;
CString strKeyName = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\";
strKeyName += lpszAdapterName;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
strKeyName,
0,
KEY_WRITE,
&hKey) != ERROR_SUCCESS)
return FALSE;

char mszIPAddress[100];
char mszNetMask[100];
char mszNetGate[100];

strncpy_s(mszIPAddress, pIPAddress, 98);
strncpy_s(mszNetMask, pNetMask, 98);
if (pNetGate)
{
strncpy_s(mszNetGate, pNetGate, 98);
}

int nIP, nMask, nGate;

nIP = strlen(mszIPAddress);
nMask = strlen(mszNetMask);
nGate = strlen(mszNetGate);

// REG_MULTI_SZ数据需要在后面再加个0
*(mszIPAddress + nIP + 1) = 0x00;
nIP += 2;

*(mszNetMask + nMask + 1) = 0x00;
nMask += 2;

*(mszNetGate + nGate + 1) = 0x00;
nGate += 2;
RegSetValueEx(hKey, "EnableDHCP", 0, REG_DWORD, (LPBYTE)&Bdhcp, sizeof(DWORD));
RegSetValueEx(hKey, "IPAddress", 0, REG_MULTI_SZ, (unsigned char*)mszIPAddress, nIP);
RegSetValueEx(hKey, "SubnetMask", 0, REG_MULTI_SZ, (unsigned char*)mszNetMask, nMask);
if (pNetGate)
{
RegSetValueEx(hKey, "DefaultGateway", 0, REG_MULTI_SZ, (unsigned char*)mszNetGate, nGate);
}

RegCloseKey(hKey);

return TRUE;
}