[C++][Socket] 类似windows Ipconfig的小工具

蔚落 2022-04-17 01:37 170阅读 0赞

发现《Windows网络编程技术》中还是有不少很不错的东西哦，比如说类似Ipconfig的demo。贴出来学习一下。

#include <windows.h>
    #include <iphlpapi.h>
    #include <stdio.h>
    #include <time.h>
    
    void main(void) {
    
        DWORD Err;
    
        PFIXED_INFO pFixedInfo;
        DWORD FixedInfoSize = 0;
    
        PIP_ADAPTER_INFO pAdapterInfo, pAdapt;
        DWORD AdapterInfoSize;
        PIP_ADDR_STRING pAddrStr;
    
        //
        // Get the main IP configuration information for this machine using a FIXED_INFO structure
        //
        if ((Err = GetNetworkParams(NULL, &FixedInfoSize)) != 0)
        {
            if (Err != ERROR_BUFFER_OVERFLOW)
            {
                printf("GetNetworkParams sizing failed with error %d\n", Err);
                return;
            }
        }
    
        // Allocate memory from sizing information
        if ((pFixedInfo = (PFIXED_INFO) GlobalAlloc(GPTR, FixedInfoSize)) == NULL)
        {
            printf("Memory allocation error\n");
            return;
        }
    
        if ((Err = GetNetworkParams(pFixedInfo, &FixedInfoSize)) == 0)
        {
            printf("\tHost Name . . . . . . . . . : %s\n", pFixedInfo->HostName);
            printf("\tDNS Servers . . . . . . . . : %s\n", pFixedInfo->DnsServerList.IpAddress.String);
            pAddrStr = pFixedInfo->DnsServerList.Next;
            while(pAddrStr)
            {
                printf("%52s\n", pAddrStr->IpAddress.String);
                pAddrStr = pAddrStr->Next;
            }
    
            printf("\tNode Type . . . . . . . . . : ");
            switch (pFixedInfo->NodeType)
            {
                case 1:
                    printf("%s\n", "Broadcast");
                    break;
                case 2:
                    printf("%s\n", "Peer to peer");
                    break;
                case 4:
                    printf("%s\n", "Mixed");
                    break;
                case 8:
                    printf("%s\n", "Hybrid");
                    break;
                default:
                    printf("\n");
            }
    
            printf("\tNetBIOS Scope ID. . . . . . : %s\n", pFixedInfo->ScopeId);
            printf("\tIP Routing Enabled. . . . . : %s\n", (pFixedInfo->EnableRouting ? "yes" : "no"));
            printf("\tWINS Proxy Enabled. . . . . : %s\n", (pFixedInfo->EnableProxy ? "yes" : "no"));
            printf("\tNetBIOS Resolution Uses DNS : %s\n", (pFixedInfo->EnableDns ? "yes" : "no"));
        } else
        {
            printf("GetNetworkParams failed with error %d\n", Err);
            return;
        }
    
        //
        // Enumerate all of the adapter specific information using the IP_ADAPTER_INFO structure.
        // Note:  IP_ADAPTER_INFO contains a linked list of adapter entries.
        //
        AdapterInfoSize = 0;
        if ((Err = GetAdaptersInfo(NULL, &AdapterInfoSize)) != 0)
        {
            if (Err != ERROR_BUFFER_OVERFLOW)
            {
                printf("GetAdaptersInfo sizing failed with error %d\n", Err);
                return;
            }
        }
    
        // Allocate memory from sizing information
        if ((pAdapterInfo = (PIP_ADAPTER_INFO) GlobalAlloc(GPTR, AdapterInfoSize)) == NULL)
        {
            printf("Memory allocation error\n");
            return;
        }
    
        // Get actual adapter information
        if ((Err = GetAdaptersInfo(pAdapterInfo, &AdapterInfoSize)) != 0)
        {
            printf("GetAdaptersInfo failed with error %d\n", Err);
            return;
        }
    
        pAdapt = pAdapterInfo;
    
        while (pAdapt)
        {
            switch (pAdapt->Type)
            {
                case MIB_IF_TYPE_ETHERNET:
                    printf("\nEthernet adapter ");
                    break;
                case MIB_IF_TYPE_TOKENRING:
                    printf("\nToken Ring adapter ");
                    break;
                case MIB_IF_TYPE_FDDI:
                    printf("\nFDDI adapter ");
                    break;
                case MIB_IF_TYPE_PPP:
                    printf("\nPPP adapter ");
                    break;
                case MIB_IF_TYPE_LOOPBACK:
                    printf("\nLoopback adapter ");
                    break;
                case MIB_IF_TYPE_SLIP:
                    printf("\nSlip adapter ");
                    break;
                case MIB_IF_TYPE_OTHER:
                default:
                    printf("\nOther adapter ");
            }
            printf("%s:\n\n", pAdapt->AdapterName);
    
            printf("\tDescription . . . . . . . . : %s\n", pAdapt->Description); 
    
            printf("\tPhysical Address. . . . . . : ");
            for (UINT i=0; i<pAdapt->AddressLength; i++)
            {
                if (i == (pAdapt->AddressLength - 1))
                    printf("%.2X\n",(int)pAdapt->Address[i]);
                else
                    printf("%.2X-",(int)pAdapt->Address[i]);
            }        
    
            printf("\tDHCP Enabled. . . . . . . . : %s\n", (pAdapt->DhcpEnabled ? "yes" : "no"));
    
            pAddrStr = &(pAdapt->IpAddressList);
            while(pAddrStr)
            {
                printf("\tIP Address. . . . . . . . . : %s\n", pAddrStr->IpAddress.String);
                printf("\tSubnet Mask . . . . . . . . : %s\n", pAddrStr->IpMask.String);
                pAddrStr = pAddrStr->Next;
            }
    
            printf("\tDefault Gateway . . . . . . : %s\n", pAdapt->GatewayList.IpAddress.String);
            pAddrStr = pAdapt->GatewayList.Next;
            while(pAddrStr)
            {
                printf("%52s\n", pAddrStr->IpAddress.String);
                pAddrStr = pAddrStr->Next;
            }
    
            printf("\tDHCP Server . . . . . . . . : %s\n", pAdapt->DhcpServer.IpAddress.String);
            printf("\tPrimary WINS Server . . . . : %s\n", pAdapt->PrimaryWinsServer.IpAddress.String);
            printf("\tSecondary WINS Server . . . : %s\n", pAdapt->SecondaryWinsServer.IpAddress.String);
    
            struct tm *newtime;
    
            // Display coordinated universal time - GMT 
            newtime = gmtime(&pAdapt->LeaseObtained);   
            printf( "\tLease Obtained. . . . . . . : %s", asctime( newtime ) );
    
            newtime = gmtime(&pAdapt->LeaseExpires);   
            printf( "\tLease Expires . . . . . . . : %s", asctime( newtime ) );
    
            pAdapt = pAdapt->Next;
        }
    }