需要帮忙！调试信息：运行时检查失败＃2 - 变量'IpNetRow2'周围的堆栈已损坏。 [英] Need Help! Debug Info: Run-Time Check Failure #2 - Stack around the variable 'IpNetRow2' was corrupted.

问题描述

亲爱的，

我正在尝试使用GetIpNetEntry2和ResolveIpNetEntry2函数从IPv4获取MAC地址。我得到了：

I am trying to use GetIpNetEntry2 and ResolveIpNetEntry2 functions to get MAC address from a IPv4. I am getting:

运行时检查失败＃2 - 变量'IpNetRow2'周围的堆栈已损坏。

在以下函数结束时：

#define DEFAULT_MAC_LEN	6 // IPv4

static int GetMacAddress(SOCKADDR_IN ClientAddr)
{
	MIB_IPNET_ROW2 IpNetRow2 = { 0 };
	DWORD dwBestIfIndex = 0;
	int nRet = -1;
	unsigned char MACAddress[DEFAULT_MAC_LEN];	

	// Retrieves the index of the interface that has the best route to the client IP address.
	GetBestInterface(inet_addr(inet_ntoa(ClientAddr.sin_addr)), &dwBestIfIndex);
	// Finds MAC address from the local computer
	IpNetRow2.InterfaceIndex = dwBestIfIndex;
	memcpy(&IpNetRow2.Address, &ClientAddr, sizeof(SOCKADDR_IN));

	nRet = GetIpNetEntry2(&IpNetRow2);
	if (nRet != NO_ERROR)
	{
		// Could not find the MAC address in the cache, lets hit the wire.
		nRet = ResolveIpNetEntry2(&IpNetRow2, NULL);
	}
	if (nRet == NO_ERROR)
	{
		if (DEFAULT_MAC_LEN == IpNetRow2.PhysicalAddressLength)
		{
			memset(&MACAddress, 0, DEFAULT_MAC_LEN);

			memcpy(MACAddress, IpNetRow2.PhysicalAddress, DEFAULT_MAC_LEN);

			sprintf(strMACAddress, "%.2X-%.2X-%.2X-%.2X-%.2X-%.2X", 

MACAddress [0] ，MACAddress [1]，MACAddress [2]，MACAddress [3]，MACAddress [4]，MACAddress [5]）;
}
}
返回nRet;
}

MACAddress[0], MACAddress[1], MACAddress[2], MACAddress[3], MACAddress[4], MACAddress[5]); } } return nRet; }

我搜索过就像我可以描述如何诊断问题一样;但是我没有找到任何相关的解决方案。代码很简单，我不知道
会导致这样的问题。有人可以帮帮我吗？非常感谢。

此致，

James

推荐答案

亲爱的，

我正在尝试使用GetIpNetEntry2和ResolveIpNetEntry2函数来从Visual Studio 2017（SDK版本8.1）中的Windows 10（Enterprise 1803）上的IPv4获取MAC地址。我得到了：

I am trying to use GetIpNetEntry2 and ResolveIpNetEntry2 functions to get MAC address from a IPv4 on Windows 10 (Enterprise 1803) in Visual Studio 2017 (SDK version 8.1). I am getting:

运行时检查失败＃2 - 变量'IpNetRow2'周围的堆栈已损坏。

在以下函数结束时：

static int GetMacAddress(SOCKADDR_IN ClientAddr)
{
	MIB_IPNET_ROW2 IpNetRow2 = { 0 };
	DWORD dwBestIfIndex = 0;
	int nRet = -1;	

	// Retrieves the index of the interface that has the best route to the client IP address.
	GetBestInterface(inet_addr(inet_ntoa(ClientAddr.sin_addr)), &dwBestIfIndex);
	// Finds MAC address from the local computer
	IpNetRow2.InterfaceIndex = dwBestIfIndex;
	memcpy(&IpNetRow2.Address, &ClientAddr, sizeof(SOCKADDR_IN));

	nRet = GetIpNetEntry2(&IpNetRow2);
	if (nRet != NO_ERROR)
	{
		// Could not find the MAC address in the cache, lets hit the wire.
		nRet = ResolveIpNetEntry2(&IpNetRow2, NULL);
	}

	return nRet;
}

Results: dwBestIfIndex = 22; nRet = 0; 

我已经尽可能多地搜索了如何描述诊断问题;但是我没有找到任何相关的解决方案。代码很简单，我不知道
会导致这样的问题。有人可以帮帮我吗？非常感谢。

此致，

James

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