C ++中的網絡適配器信息

Question

在Windows 8上，我可以在C中使用任何標准功能來獲取處理系統中以太網的每個網絡接口卡的IP地址和網絡掩碼的列表嗎？ 我想獲得這種信息的唯一其他方法是解析ipconfig的輸出，但是我真的不想在C ++中走那條路。

Answer 1

微軟有一個叫做IP Helper API的東西。 他們的文檔非常詳盡，“ 入門”頁面包含一些基本示例。

這是GetAdaptersInfo的示例：

編輯 ：在XP及更高版本， GetAdaptersInfo()已過時，使用GetAdaptersAddresses()代替（歸功於雷米勒博）。

PIP_ADAPTER_INFO pAdapter = pAdapterInfo;
while (pAdapter) {
    printf("Adapter Name: %s\n", pAdapter->AdapterName);
    printf("Adapter Desc: %s\n", pAdapter->Description);
    printf("\tAdapter Addr: \t");
    for (UINT i = 0; i < pAdapter->AddressLength; i++) {
        if (i == (pAdapter->AddressLength - 1))
            printf("%.2X\n",(int)pAdapter->Address[i]);
        else
            printf("%.2X-",(int)pAdapter->Address[i]);
    }
    printf("IP Address: %s\n", pAdapter->IpAddressList.IpAddress.String);
    printf("IP Mask: %s\n", pAdapter->IpAddressList.IpMask.String);
    printf("\tGateway: \t%s\n", pAdapter->GatewayList.IpAddress.String);
    printf("\t***\n");
    if (pAdapter->DhcpEnabled) {
        printf("\tDHCP Enabled: Yes\n");
        printf("\t\tDHCP Server: \t%s\n", pAdapter->DhcpServer.IpAddress.String);
    }
    else
      printf("\tDHCP Enabled: No\n");

  pAdapter = pAdapter->Next;
}

這是有關提取網絡參數的部分：

    FIXED_INFO *pFixedInfo;
    IP_ADDR_STRING *pIPAddr;

    ULONG ulOutBufLen;
    DWORD dwRetVal;

    pFixedInfo = (FIXED_INFO *) malloc(sizeof (FIXED_INFO));
    ulOutBufLen = sizeof (FIXED_INFO);

    if (GetNetworkParams(pFixedInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW) {
        free(pFixedInfo);
        pFixedInfo = (FIXED_INFO *) malloc(ulOutBufLen);
        if (pFixedInfo == NULL) {
            printf("Error allocating memory needed to call GetNetworkParams\n");
        }
    }

   printf("\tHost Name: %s\n", pFixedInfo->HostName);
        printf("\tDomain Name: %s\n", pFixedInfo->DomainName);
        printf("\tDNS Servers:\n");
        printf("\t\t%s\n", pFixedInfo->DnsServerList.IpAddress.String);

        pIPAddr = pFixedInfo->DnsServerList.Next;
        while (pIPAddr) {
            printf("\t\t%s\n", pIPAddr->IpAddress.String);
            pIPAddr = pIPAddr->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);

        if (pFixedInfo->EnableRouting)
            printf("\tIP Routing Enabled: Yes\n");
        else
            printf("\tIP Routing Enabled: No\n");

        if (pFixedInfo->EnableProxy)
            printf("\tWINS Proxy Enabled: Yes\n");
        else
            printf("\tWINS Proxy Enabled: No\n");

        if (pFixedInfo->EnableDns)
            printf("\tNetBIOS Resolution Uses DNS: Yes\n");
        else
            printf("\tNetBIOS Resolution Uses DNS: No\n");

還有GetInterfaceInfo等等。