C++获取局域网内所有活动的主机Ip和名称

[jingyukxy]

如题
　　如果能用Java实现也可以

[xf_pan]

1：通过ping命令，检测当前活动主机。
2:arp欺骗，，（完了记得改回来。。）

[星羽]

http://www.itzhe.cn/article/20080118/56973.html

[星羽]

http://topic.csdn.net/t/20061007/13/5065543.html

[redleaves]

2:arp欺骗，，（完了记得改回来。。）
不一定非要欺骗,只要发个ARP包,告诉大家有新主机加入,别的主机就会发ARP给你说它的地址...
还可以做网络监听,分析所有过往包的信息...

[herman~~]

arp包 ，对了TCP/IP详解你们有提到...
差点忘记了，看来需要复习下 TCP/IP详解了

[study_live]

#include   <windows.h>   
  #include   <Winnetwk.h>   
  #include   <stdio.h>   
  #pragma   comment(lib,   "Ws2_32.lib")   
  #pragma   comment(lib,   "Mpr.lib")   
    
  BOOL   GetIpAddress(char   *hostname)   
      {   
              HOSTENT   *lpHost=NULL;   
                        struct   sockaddr_in       dest;   
    
              lpHost   =   gethostbyname(hostname);   
              if   (lpHost   ==   NULL)   
              {   
                    printf("gethostbyname   failed:   %d",   WSAGetLastError());   
              }   
              else   
              {   
                    for(int   i=0;   lpHost->h_addr_list[i]   !=   NULL   ;i++)   
                    {   
                          memcpy(&(dest.sin_addr),   lpHost->h_addr_list[i],   
                                        lpHost->h_length);   
                          printf("IP   address   is:   %s",   
                                            inet_ntoa(dest.sin_addr));   
                    }   
    
              }   
      return   TRUE;   
  }   
  BOOL   WINAPI   EnumerateFunc   (LPNETRESOURCE   lpnr)   
  {   
  HANDLE   hEnum;   
  DWORD   dwIndex,   dwResult,   dwBufferSize   =   16384,   dwNumEntries   =   0xFFFFFFFF;     //   Enumerate   all   possible   entries.   
  LPNETRESOURCE   lpnrLocal;                     //   Pointer   to   enumerated   structures.   
    
  dwResult   =   WNetOpenEnum   (   
  RESOURCE_GLOBALNET,   //   All   resources   on   the   network   
  RESOURCETYPE_ANY,       //   All   resources     
  0,                                     //   Enumerate   all   resources.   
  lpnr,                               //   The   container   to   enumerate   
  &hEnum);                         //   Handle   to   resource   
  if   (dwResult   !=   ERROR_SUCCESS)     
  return   FALSE;   
    
  //   Allocate   memory   for   NETRESOURCE   structures.   
  if   (!(lpnrLocal   =   (LPNETRESOURCE)   LocalAlloc   (LPTR,   dwBufferSize)))   
  printf("Not   enough   memory");   
    
  do     
  {   
  dwResult   =   WNetEnumResource   (   
  hEnum,                             //   Resource   handle   
  &dwNumEntries,             //   Number   of   entries   
  lpnrLocal,                     //   LPNETRESOURCE   
  &dwBufferSize);           //   Buffer   size   
    
  if   (dwResult   ==   ERROR_SUCCESS)     
  {   
  for   (dwIndex   =   0;   dwIndex   <   dwNumEntries;   dwIndex++)   
  {   
  printf("\nRemote   Name:%s   Comment:   %s",   lpnrLocal[dwIndex].lpRemoteName,   
  lpnrLocal[dwIndex].lpComment);   
  GetIpAddress(lpnrLocal[dwIndex].lpRemoteName+2);   
    
  }   
  }   
  else   if   (dwResult   !=   ERROR_NO_MORE_ITEMS)     
  break;   
  }     
  while(dwResult   !=   ERROR_NO_MORE_ITEMS);   
  LocalFree   (lpnrLocal);   
  WNetCloseEnum   (hEnum);   
  return   TRUE;   
  }     
    
  int   main(int   argc,   char*   argv[])   
  {   
  WORD   wVersionRequested;   
  WSADATA   wsaData;   
  int   err;   
  wVersionRequested   =   MAKEWORD(   2,   2   );   
  err   =   WSAStartup(   wVersionRequested,   &wsaData   );   
  if   (   err   ==   0   )     
  {   
  NETRESOURCE   nr;   
  nr.dwScope   =   RESOURCE_GLOBALNET;   
  nr.dwType   =   RESOURCETYPE_DISK;       
  nr.dwUsage   =   RESOURCEUSAGE_CONTAINER;   
  nr.lpLocalName   =   TEXT("");   
  nr.lpRemoteName   =   TEXT("MyDomain");//这里改为你的域名   
  nr.lpComment   =   TEXT("");   
  nr.lpProvider   =   TEXT("");   
  EnumerateFunc   (&nr);     
  }   
  return   0;   
  }   
  

[帅得不敢出门]

arp包 一个个主机发过去
感觉这个比较实用点，其他的几个貌似只能查一个域里的

[帅得不敢出门]

http://topic.csdn.net/t/20040707/15/3153479.html

线程函数  
  DWORD   WINAPI   ArpThread(LPVOID   lParam)  
  {  
  char   *   szIp=(char   *)lParam;  
  ULONG   pMac[2];  
  ULONG   pulen=6;  
  int   ret;  
  if   ((ret=SendARP(inet_addr(szIp),0,pMac,&pulen))==0)  
  {  
  PBYTE   pbyte=(PBYTE)pMac;  
  for   (int   i=0;i<5;i++)  
  {  
  TRACE("%02X-",pbyte[i]);  
  }  
  TRACE("%02X",pbyte[5]);  
   
  }  
  else  
  {  
  TRACE("SendARP   Error   %d",ret);  
  }  
  return   0;  
  }  
   
  开多线程调用  
  void   CTestArpDlg::OnButton1()    
  {  
  //   TODO:   Add   your   control   notification   handler   code   here  
  HANDLE   hthread[255];  
  CString   IpSuffix="192.168.10.";  
  CString   strIp;  
  for   (int   i=0;i<255;i++)  
  {  
  strIp.Format("%d",i+1);  
  strIp=IpSuffix+strIp;  
  hthread[i]=CreateThread(NULL,0,ArpThread,strIp.GetBuffer(0),0,NULL);  
  }  
  WaitForMultipleObjects(255,hthread,TRUE,INFINITE);  
   
  }

[lbzhao_28]

ping的方法太慢了.
arp倒是可以的.

楼主是要在什么OS中实现?

我在linux的底层做过类似的东西,建立一个arp的地址链表.