如何设置本机IP地址

Leighf 2011-05-09 12:48:45

想做这样一个东西，首次运行记录下本机的IP地址

发现IP更改后需要还原成原来的IP，该这么弄呢？

另：如何读取子网掩码，网关等信息。

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Leighf 2011-05-13

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里面的一些参数定义、头文件什么的我没搞明白，能在帮忙下么

CppFile 2011-05-09

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好久以前写的一个程序，里面有相关的功能代码，楼主参考一下



void __fastcall TIpChangerMainForm::FormCreate(TObject *Sender)

{

//清空控件

ComboBox1->Items->Clear();

Edit1->Text="";

Edit2->Text="";

Edit3->Text="";

Edit4->Text="";

Edit5->Text="";

Edit6->Text="";

Label26->Caption="";

Label13->Caption="";



pStatus=(MIB_IPSTATS*)new char[sizeof(MIB_IPSTATS)];

OldReceiveNumber=0;

//读取数据，填充结构体

int iAdapterNumber=0;

//计算有几块网卡，准备初始化结构体

ULONG ulAdapterInfoSize = sizeof(IP_ADAPTER_INFO);

IP_ADAPTER_INFO *pAdapterInfo=(IP_ADAPTER_INFO*)new char[ulAdapterInfoSize];

IP_ADAPTER_INFO *pAdapterInfoBkp;

if(GetAdaptersInfo(pAdapterInfo, &ulAdapterInfoSize) == ERROR_BUFFER_OVERFLOW ) // 缓冲区不够大

{

	delete pAdapterInfo;

	pAdapterInfo = (IP_ADAPTER_INFO*)new char[ulAdapterInfoSize];

}

if( GetAdaptersInfo(pAdapterInfo, &ulAdapterInfoSize) == ERROR_SUCCESS )

{

        pAdapterInfoBkp=pAdapterInfo;

        while(pAdapterInfo){ // 遍历所有适配器,取得网络适配器数量

	       	if(pAdapterInfo->Type == MIB_IF_TYPE_ETHERNET)

	        {

                 iAdapterNumber++;

	       	}

		pAdapterInfo = pAdapterInfo->Next;

          }

}

ArrayAdapterInfo.Length=iAdapterNumber;



pAdapterInfo=pAdapterInfoBkp;

int i=0;

//读取网卡名字到ComboBox中

while(pAdapterInfo){ // 遍历所有适配器

        if(pAdapterInfo->Type == MIB_IF_TYPE_ETHERNET)

         {

              ComboBox1->Items->Add(pAdapterInfo->Description);

              ArrayAdapterInfo[i]=*pAdapterInfo;

              i++;

         }

          pAdapterInfo = pAdapterInfo->Next;

      }





ComboBox1->ItemIndex=0;

SetDisplay(0);

//取得选中的网卡的index

OldAdapterIndex=ArrayAdapterInfo[0].Index;

NewAdapterIndex=OldAdapterIndex;

delete pAdapterInfo;

//读取TCP连接列表

Timer2->Enabled=true;

Timer2Timer(Sender);

}

//---------------------------------------------------------------------------



void TIpChangerMainForm::SetDisplay(int i)

{

//显示ip地址,mask,gateway

IP_ADDR_STRING *pIpList=&ArrayAdapterInfo[i].IpAddressList;

IP_ADDR_STRING *pGateWayList=&ArrayAdapterInfo[i].GatewayList;

while(pIpList)

   {

    Edit2->Text=pIpList->IpAddress.String;



    Edit3->Text=pIpList->IpMask.String;

    pIpList=pIpList->Next;

   }



while(pGateWayList)

   {

    Edit4->Text=pGateWayList->IpAddress.String;

    pGateWayList=pGateWayList->Next;

   }

//显示DNS服务器

ULONG ulAdapterInfoSizePer = sizeof(IP_PER_ADAPTER_INFO);

IP_PER_ADAPTER_INFO *pAdapterInfoPer=(IP_PER_ADAPTER_INFO*)new char[ulAdapterInfoSizePer];

if(GetPerAdapterInfo(ArrayAdapterInfo[i].Index, pAdapterInfoPer, &ulAdapterInfoSizePer) == ERROR_BUFFER_OVERFLOW ) // 缓冲区不够大

{

	delete pAdapterInfoPer;

	pAdapterInfoPer = (IP_PER_ADAPTER_INFO*)new char[ulAdapterInfoSizePer];

}

if( GetPerAdapterInfo(ArrayAdapterInfo[i].Index,pAdapterInfoPer, &ulAdapterInfoSizePer) == ERROR_SUCCESS )

{

//取DNS

IP_ADDR_STRING *pDnsList=&pAdapterInfoPer->DnsServerList;

while(pDnsList)

   {

    Edit5->Text=pDnsList->IpAddress.String;

    pDnsList=pDnsList->Next;

    if(!pDnsList) break;

    Edit6->Text=pDnsList->IpAddress.String;

    pDnsList=pDnsList->Next;

   }

delete pDnsList;

}

//显示物理地址

AnsiString StrMacAddress="";

DynamicArray<BYTE> MacArray;

MacArray.Length=ArrayAdapterInfo[i].AddressLength;

for(int j=0;j<int(ArrayAdapterInfo[i].AddressLength);j++)

{

 MacArray[j]=ArrayAdapterInfo[i].Address[j];

}

for(int j=0;j<int(ArrayAdapterInfo[i].AddressLength)-1;j++)

   {

    StrMacAddress=StrMacAddress+IntToHex(MacArray[j],2)+"-";

   }

StrMacAddress=StrMacAddress+IntToHex(MacArray[int(ArrayAdapterInfo[i].AddressLength)-1],2);

Edit1->Text=StrMacAddress;

//显示折线图

Timer1->Enabled=true;

if(GetIpStatistics(pStatus)==NO_ERROR)

  {

   OldReceiveNumber=pStatus->dwInReceives;

   OldOutRequest=pStatus->dwOutRequests;

  }



delete pAdapterInfoPer;

delete pGateWayList;

delete pIpList;

MacArray.Length=0;

}