首先，這篇文章實現了兩種方法查詢IP，實現截圖如下：
第一種方法時調用系統命令，代碼如下：
#include <cstdlib>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
system("ipconfig");
system("PAUSE");
return EXIT_SUCCESS;
}
下面這種方法是對源碼的解析：
#include <windows.h>
#include <IPHlpApi.h>
#include <stdio.h>
#include <time.h>
#include<Ipexport.h>
#include<Windns.h>
#pragma comment(lib,"Ws2_32")
#pragma comment(lib,"Dnsapi")
#define Max 10 ;
//#include <winsock2.h>
#pragma comment(lib,"IPHlpApi")
void DoUsage(bool);
void DoRelease(bool);// realized
void DoRenew(bool);//realized
void DoDisplayDns(bool);
void DoFlushDns(bool);
void DoAll(void);
void GetInterfaceInfo(void);
//LPCTSTR GetNodeTypeName(UINT nodeType);
//LPCTSTR GetInterfaceTypeName(UINT InterfaceType);
IP_ADAPTER_INDEX_MAP adapterInfo;
PIP_INTERFACE_INFO pInfo;
DWORD checkReturn;
void main(int argc,char **argv)
{
bool doUsage=false;
bool doAll=false;
bool doRelease=false;
bool doRenew=false;
bool doDisplayDns=false;
bool doFlushDns=false;
char *argument; //store the command line code
argument=&argv[1][1];
if((argc>1)&&(argv[1][0]=='/'))
{
if(!strcmp(argument,"?"))
{
doUsage=true;
DoUsage(doUsage);
}
if(!strcmp(argument,"all"))
{
doUsage=true;
DoAll();
}
if(!strcmp(argument,"release"))
{
doRelease=true;
DoRelease(doRelease);
}
if(!strcmp(argument,"renew"))
{
doRenew=true;
DoRenew(doRenew);
}
if(!strcmp(argument,"displaydns"))
{
doDisplayDns=true;
DoDisplayDns(doDisplayDns);
}
if(!strcmp(argument,"flushdns"))
{
doFlushDns=true;
DoFlushDns(doFlushDns);
}
}
else
printf("error command code!");
printf("......................................");
}
/* get the using adapter information*/
void GetInterfaceInfo()
{
ULONG outBufferLen=0;
pInfo=(IP_INTERFACE_INFO *)malloc(sizeof(IP_INTERFACE_INFO));
/* Make the first call to buffer information*/
if((checkReturn=GetInterfaceInfo(pInfo,&outBufferLen))==ERROR_INSUFFICIENT_BUFFER)
{
free(pInfo);
pInfo=(IP_INTERFACE_INFO *)malloc(outBufferLen);
}
/* Make the second call of GetInterfaceInfo() to get the actual data */
if((checkReturn=GetInterfaceInfo(pInfo,&outBufferLen))==NO_ERROR)
{
adapterInfo=pInfo->Adapter[0];//關鍵此處返回IP_ADAPTER_INDEX_MAP 用於IP更新
printf("the dapter name is: %d ",pInfo->Adapter[0].Name);
}
else
{
printf("Get the interface information occer error!");
}
}
/* release IP address */
void DoRelease(bool doRelease)
{
if(doRelease)
{
GetInterfaceInfo();
/**the specific action to config/release*/
if((checkReturn=IpReleaseAddress(&adapterInfo))==NO_ERROR)
{
printf("the action of release IP work!");
}
else
printf("An error occured while releasing interface of %s",pInfo->Adapter[0].Name);
}
else
{
printf("illegal action");
}
}
/** Do renew IPAddree */
void DoRenew(bool doRenew)
{
if(doRenew)
{
GetInterfaceInfo();
if((checkReturn=IpRenewAddress(&adapterInfo))==NO_ERROR)
{
printf("the action of release IP work!");
}
else
printf("An error occured while releasing interface of %s",pInfo->Adapter[0].Name);
}
else
{
printf("illegal action");
}
}
/* display all information ipconfig/all */
void DoAll(void)
{
DWORD returnCheckError;
PFIXED_INFO pFixedInfo;
DWORD FixedInfoSize = 0;
PIP_ADDR_STRING pAddrStr;
PIP_ADAPTER_INFO pAdapt,pAdapterInfo;
if ((returnCheckError = GetNetworkParams(NULL, &FixedInfoSize)) != 0)
{
if (returnCheckError != ERROR_BUFFER_OVERFLOW)
{
printf("GetNetworkParams sizing failed with error %d\n", returnCheckError);
return;
}
}
// Allocate memory from sizing information
if ((pFixedInfo = (PFIXED_INFO) malloc( FixedInfoSize)) == NULL)
{
printf("Memory allocation error\n");
return;
}
if ((returnCheckError = 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", returnCheckError);
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.
ULONG AdapterInfoSize = 0;
if ((returnCheckError = GetAdaptersInfo(NULL, &AdapterInfoSize)) != 0)
{
if (returnCheckError != ERROR_BUFFER_OVERFLOW)
{
printf("GetAdaptersInfo sizing failed with error %d\n", returnCheckError);
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 ((returnCheckError = GetAdaptersInfo(pAdapterInfo, &AdapterInfoSize)) != 0)
{
printf("GetAdaptersInfo failed with error %d\n", returnCheckError);
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;
}
}
void DoUsage(bool doUsage)
{
if(doUsage)
{
printf("\nUSAGE:\n"
" ipconfig [/? | /all | /renew [adapter] | /release [adapter] |\n"
" /flushdns | /displaydns | /registerdns |\n"
" /showclassid adapter |\n"
" /setclassid adapter [classid] ]\n"
"\n"
"where\n"
" adapter Connection name\n"
" (wildcard characters * and ? allowed, see examples)\n"
"\n"
" Options:\n"
" /? Display this help message\n"
" /all Display full configuration information.\n"
" /release Release the IP address for the specified adapter.\n"
" /renew Renew the IP address for the specified adapter.\n"
" /flushdns Purges the DNS Resolver cache.\n"
" /registerdns Refreshes all DHCP leases and re-registers DNS names.\n"
" /displaydns Display the contents of the DNS Resolver Cache.\n"
" /showclassid Displays all the dhcp class IDs allowed for adapter.\n"
" /setclassid Modifies the dhcp class id.\n"
"\n"
"The default is to display only the IP address, subnet mask and\n"
"default gateway for each adapter bound to TCP/IP.\n"
"\n"
"For Release and Renew, if no adapter name is specified, then the IP address\n"
"leases for all adapters bound to TCP/IP will be released or renewed.\n"
"\n"
"For Setclassid, if no ClassId is specified, then the ClassId is removed.\n"
"\n"
"Examples:\n"
" > ipconfig ... Show information.\n"
" > ipconfig /all ... Show detailed information\n"
" > ipconfig /renew ... renew all adapters\n"
" > ipconfig /renew EL* ... renew any connection that has its\n"
" name starting with EL\n"
" > ipconfig /release *Con* ... release all matching connections,\n"
" eg. \"Local Area Connection 1\" or\n"
" \"Local Area Connection 2\"\n");
}
else
{
printf("ilegal code!");
}
}
void DoDisplayDns(bool doDisplayDns)
{
if(doDisplayDns)
{
char hostname[256];
int iRet = 0;
WSADATA wsaData;
DNS_STATUS status; //Return value of DnsQuery_A() function.
PDNS_RECORD pDnsRecord;
int assignBuffLenght;
assignBuffLenght=(sizeof(DNS_RECORD))*Max;
pDnsRecord=(DNS_RECORD*)malloc(assignBuffLenght);
memset(pDnsRecord,0,assignBuffLenght);
if (WSAStartup(MAKEWORD(2,1),&wsaData)) //調用Windows Sockets DLL
{
printf("Winsock無法初始化!\n");
WSACleanup();
}
memset(hostname, 0, 256);
iRet = gethostname(hostname, sizeof(hostname));
if(iRet != 0 )
{
printf( "get hostname error:%d\n", iRet);
}
printf("%s\n", hostname);
LPSTR pOwnerName=hostname;
// Calling function DnsQuery to query Host or PTR records
status = DnsQuery(pOwnerName, //Pointer to OwnerName.
DNS_TYPE_A, //Type of the record to be queried.
DNS_QUERY_STANDARD, // Bypasses the resolver cache on the lookup.
NULL, //Contains DNS server IP address.
&pDnsRecord, //Resource record that contains the response.
NULL); //Reserved for future use.
// printf("The host name is %s \n",(pDnsRecord->Data.PTR.pNameHost));
while(pDnsRecord){
printf("The host name is %s \n",pDnsRecord->pName);
printf("the type is %d \n",pDnsRecord->wType);
printf("the lenght of data is %d \n", pDnsRecord->wDataLength);
printf(" the time to live is %d \n", pDnsRecord-> dwTtl);
printf("the lenght of data id %d \n", pDnsRecord-> dwReserved);
pDnsRecord=pDnsRecord->pNext;
}
printf("dnsCache print over");
}
else
{
printf("ilegal code");
}
}
void DoFlushDns(bool){
printf("relizing config/flushdns!");
}
