win32 获取本机网卡信息(MAC地址,IP地址等)
2024-08-25 04:14:43
由于一个需求需要获取网卡的MAC地址,就搜了一下,大部分都是COPY来COPY去的一些代码,有很多甚至不能直接运行或有还有内存泄漏。自己查了一下MSDN然后封装了一下;
需要注意,一个机器可能有多个网卡(包含虚拟网卡),一个网卡可能有多个IP
主要用到了 GetAdaptersInfo 这个API,可以自己去MSDN查一下
下面是我的封装,可以直接用,也可以按照你的需求改,我这里只需要获取MAC地址,IP,和描述就够了,通过描述可以筛选掉VMware和VPN生成的虚拟网卡
// 头文件包含
#include "stdafx.h"
#include <WinSock2.h>
#include <Iphlpapi.h>
#include <iostream>
#include <string>
#include <map>
#include <vector> #pragma comment(lib,"iphlpapi.lib") #define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x)) typedef struct _MyAdpterInfo
{
std::vector<std::string> Ip;
std::string MacAddress;
std::string Description;
std::string Name;
UINT Type;
}MyAdpterInfo; int MyGetAdptersInfo(std::vector<MyAdpterInfo>& adpterInfo)
{
PIP_ADAPTER_INFO pAdapterInfo;
PIP_ADAPTER_INFO pAdapter = NULL;
DWORD dwRetVal = ;
UINT i; /* variables used to print DHCP time info */
struct tm newtime;
char buffer[];
errno_t error; ULONG ulOutBufLen = sizeof(IP_ADAPTER_INFO);
pAdapterInfo = (IP_ADAPTER_INFO *)MALLOC(sizeof(IP_ADAPTER_INFO));
if (pAdapterInfo == NULL)
{
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return -;
}
// Make an initial call to GetAdaptersInfo to get
// the necessary size into the ulOutBufLen variable
if (GetAdaptersInfo(pAdapterInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW)
{
FREE(pAdapterInfo);
pAdapterInfo = (IP_ADAPTER_INFO *)MALLOC(ulOutBufLen);
if (pAdapterInfo == NULL)
{
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return -; // error data return
}
} if ((dwRetVal = GetAdaptersInfo(pAdapterInfo, &ulOutBufLen)) == NO_ERROR)
{
pAdapter = pAdapterInfo;
while (pAdapter)
{
MyAdpterInfo info;
info.Name = std::string(pAdapter->AdapterName);
info.Description = std::string(pAdapter->Description);
info.Type = pAdapter->Type;
char buffer[];
sprintf_s(buffer, "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x", pAdapter->Address[],
pAdapter->Address[], pAdapter->Address[], pAdapter->Address[],
pAdapter->Address[], pAdapter->Address[]);
info.MacAddress = std::string(buffer);
IP_ADDR_STRING *pIpAddrString = &(pAdapter->IpAddressList);
do
{
info.Ip.push_back(std::string(pIpAddrString->IpAddress.String));
pIpAddrString = pIpAddrString->Next;
} while (pIpAddrString);
pAdapter = pAdapter->Next;
adpterInfo.push_back(info);
}
if (pAdapterInfo)
FREE(pAdapterInfo);
return ; // normal return
}
else
{
if (pAdapterInfo)
FREE(pAdapterInfo);
printf("GetAdaptersInfo failed with error: %d\n", dwRetVal);
return ; // null data return
}
} int _tmain(int argc, _TCHAR* argv[])
{
std::vector<MyAdpterInfo> AdptersInfo;
int ret = MyGetAdptersInfo(AdptersInfo);
for (int i = ; i < AdptersInfo.size(); ++i)
{
std::cout << "Adpter name: " << AdptersInfo[i].Name << std::endl;
std::cout << "Adpter description: " << AdptersInfo[i].Description << std::endl;
std::cout << "Adpter MAC: " << AdptersInfo[i].MacAddress << std::endl;
std::cout << "Adpter IP: ";
for (int j = ; j < AdptersInfo[i].Ip.size(); ++j)
{
if (j != )
{
std::cout << ", ";
}
std::cout << AdptersInfo[i].Ip[j];
}
std::cout << std::endl << std::endl << std::endl;
}
return ;
}
运行结果
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