C/C++：Windows编程—代码获取本地所有网卡信息（网卡描述，IP地址，子网掩码，MAC地址）demo代码

#include <iostream> #include <vector> #include <WinSock2.h> #include <Iphlpapi.h> //#pragma comment(lib,"Iphlpapi.lib") //需要Iphlpapi.lib库 ,devc++中 项目 -> 项目选项-> 参数 -> 添加链接库 libiphlpapi.a （D:\Program Files (x86)\Dev-Cpp\MinGW64\x86_64-w64-mingw32\lib\libiphlpapi.a） using namespace std; static const int ADAPTERNUM = 10; void getAllAdapterInfo(){ PIP_ADAPTER_INFO pIpAdapterInfo = new IP_ADAPTER_INFO[ADAPTERNUM];// 10个网卡空间 足够了 unsigned long stSize = sizeof(IP_ADAPTER_INFO) * ADAPTERNUM; // 获取所有网卡信息，参数二为输入输出参数 int nRel = GetAdaptersInfo(pIpAdapterInfo,&stSize); // 空间不足 if (ERROR_BUFFER_OVERFLOW == nRel) { // 释放空间 if(pIpAdapterInfo!=NULL) delete[] pIpAdapterInfo; return; } PIP_ADAPTER_INFO cur = pIpAdapterInfo; // 多个网卡 通过链表形式链接起来的 while(cur){ cout<<"网卡描述："<<cur->Description<<endl; switch (cur->Type) { case MIB_IF_TYPE_OTHER: break; case MIB_IF_TYPE_ETHERNET: { IP_ADDR_STRING *pIpAddrString =&(cur->IpAddressList); cout << "IP:" << pIpAddrString->IpAddress.String << endl; cout << "子网掩码:" << pIpAddrString->IpMask.String <<endl; } break; case MIB_IF_TYPE_TOKENRING: break; case MIB_IF_TYPE_FDDI: break; case MIB_IF_TYPE_PPP: break; case MIB_IF_TYPE_LOOPBACK: break; case MIB_IF_TYPE_SLIP: break; default://无线网卡,Unknown type { IP_ADDR_STRING *pIpAddrString =&(cur->IpAddressList); cout << "IP:" << pIpAddrString->IpAddress.String << endl; cout << "子网掩码:" << pIpAddrString->IpMask.String <<endl; } break; } char hex[16] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'} ; // mac 地址一般6个字节 // mac 二进制转16进制字符串 char macStr[18] = {0};//12+5+1 int k = 0; for(int j = 0; j < cur->AddressLength; j++){ macStr[k++] = hex[(cur->Address[j] & 0xf0) >> 4]; macStr[k++] = hex[cur->Address[j] & 0x0f]; macStr[k++] = '-'; } macStr[k-1] = 0; cout<<"MAC:" << macStr << endl; // mac地址 16进制字符串表示 cur = cur->Next; cout << "--------------------------------------------------" << endl; } // 释放空间 if(pIpAdapterInfo!=NULL) delete[] pIpAdapterInfo; } int main(int argc, char* argv[]) { getAllAdapterInfo(); return 0; }