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TCP端口掃描C++源程序

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目的：掃描目的的主機(jī)端口，來探測(cè)看目的主機(jī)各個(gè)端口的情況。


c++源程序如下:
  1. #include <string.h>
  2. #include <WinSock.h>
  3. #include <iostream>
  4. #include<string>
  5. using namespace std;
  6. /*
  7. // SCAN.cpp : Defines the entry point for the console application.
  8. //

  10. #include "stdafx.h"
  11. #ifndef _INIT_SCOK
  12. #define _INIT_SCOK

  14. #include <stdlib.h>
  15. #include <winsock2.h>
  16. #pragma comment(lib,"WS2_32")
  17. #include <Mswsock.h>
  18. #pragma comment(lib,"mswsock")
  19. #include <Ws2tcpip.h>
  20. #include <MSTcpIP.h>
  21. #endif
  22. typedef struct tagParam
  23. {
  24. DWORD  dwDesIp;
  25. USHORT nDesPort;
  26. static LONG nThread;
  27. }ScanParam,*pScanParam;

  29. LONG ScanParam::nThread = 0;


  32. DWORD WINAPI ScanPort(LPVOID lpParam);



  36. int main(int argc, char* argv[])
  37. {
  38. DWORD dwAddr = 0;
  39. LONG  nStart = 0,nEnd = 0,nThread = 0;

  41. char buf[MAX_BUF_LEN];
  42. WSADATA wsaData;
  43. BYTE minorVer = 2;
  44. BYTE majorVer = 2;
  45. WORD sockVersion = MAKEWORD(majorVer,majorVer);
  46. if(::WSAStartup(sockVersion,&wsaData)!=0)
  47. {
  48. exit(0);
  49. }
  50. do
  51. {
  52. printf("請(qǐng)輸入需要掃描的IP地址：");
  53. gets(buf);
  54. }
  55. while((strcmp(buf,"") == 0));

  57. dwAddr = ::inet_addr(buf);
  58. do
  59. {
  60. printf("請(qǐng)輸入掃描的起始端口：");
  61. scanf("%d",&nStart);
  62. }
  63. while (nStart < 0);

  65. do
  66. {
  67. printf("請(qǐng)輸入掃描的結(jié)束端口：");
  68. scanf("%d",&nEnd);
  69. }
  70. while (nStart > nEnd);

  72. do
  73. {
  74. printf("請(qǐng)輸入掃描的最大線程數(shù)：");
  75. scanf("%d",&nThread);
  76. }
  77. while (nThread < 0);


  80. printf("正在掃描中......\r\n");
  81. for (USHORT nPort = (USHORT)nStart;nPort != (USHORT)nEnd;++nPort)
  82. {
  83. pScanParam pData = new ScanParam();
  84. pData->dwDesIp = dwAddr;
  85. pData->nDesPort = nPort;
  86. if (CreateThread(NULL, 0, ScanPort, (LPVOID)pData, 0, NULL) != NULL)
  87. {
  88. ::Sleep(10);
  89. }
  90. while(ScanParam::nThread >= nThread)
  91. {
  92. ::Sleep(10);
  93. }
  94. }
  95. while(ScanParam::nThread > 0)
  96. {
  97. ::Sleep(10);
  98. }
  99. printf("掃描完成！\r\n");
  100. system("pause");
  101. ::WSACleanup();
  102. return 0;
  103. }


  106. DWORD WINAPI ScanPort(LPVOID lpParam)
  107. {
  108. pScanParam pData = (pScanParam)lpParam;
  109. if(pData == NULL)
  110. return -1;

  112. ScanParam::nThread++;
  113. // 創(chuàng)建套節(jié)字
  114. SOCKET s = NULL;
  115. // 填寫遠(yuǎn)程地址信息
  116. sockaddr_in remote;
  117. remote.sin_family = AF_INET;
  118. remote.sin_addr.S_un.S_addr = pData->dwDesIp;
  119. remote.sin_port = ::htons(pData->nDesPort);

  121. if((s = ::socket(AF_INET,SOCK_STREAM, IPPROTO_IP)) == INVALID_SOCKET)
  122. {
  123. printf("Failed socket() %d \n", ::WSAGetLastError());
  124. return -1;
  125. }
  126. printf("%s端口[%d]是否打開 \n",inet_ntoa(remote.sin_addr),::ntohs(remote.sin_port));
  127. if(::connect(s,(SOCKADDR*)&remote,sizeof(SOCKADDR))!= SOCKET_ERROR)
  128. {
  129. printf("%s端口[%d]已打開\r\n",inet_ntoa(remote.sin_addr),::ntohs(remote.sin_port));
  130. }
  131. ::closesocket(s);

  133. ScanParam::nThread--;

  135. DEL_P(pData);
  136. return 1;
  137. }

  139. */
  140. #pragma comment(lib,"ws2_32.lib")
  141. int main()
  142. {
  143.         //初始化Windows Sockets 動(dòng)態(tài)庫

  145.         WSADATA wsaData;
  146.         if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
  147.         {
  148.                 cout << "失�。篧SAStartup" << endl;
  149.                 return 1;
  150.         }
  151.        
  152.         //連接服務(wù)器
  153.          char IP[100];
  154.         int star_host, end_host;
  155.         cout << "請(qǐng)輸入目標(biāo)主機(jī)+開始端口+終止端口 " << endl;
  156.         cin >> IP >> star_host >> end_host;
  157.          
  158.         SOCKADDR_IN addrServ;
  159.         addrServ.sin_family = AF_INET;
  160.         addrServ.sin_addr.S_un.S_addr = inet_addr(IP);
  161.         if (star_host > end_host)
  162.         {
  163.                 cout << "終止端口應(yīng)該大于等于起始端口" << endl;
  164.                 return 0;
  165.         }

  167.         for (int now_host = star_host; now_host <= end_host; now_host++)
  168.         {
  169.                 addrServ.sin_port = htons(now_host);

  171.                 //創(chuàng)建套接字
  172.                 SOCKET sClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  173.                 if (sClient == INVALID_SOCKET)
  174.                 {
  175.                         cout << "失�。簞�(chuàng)建socket！" << endl;
  176.                         return 1;
  177.                 }
  178.                 if (connect(sClient, (sockaddr *)&addrServ, sizeof(sockaddr)) == SOCKET_ERROR)
  179.                 {
  180.                         cout << "關(guān)閉:" << now_host << endl;
  181.                 }
  182.                 else
  183.                         cout << "開放:" << now_host << endl;

  185.                 closesocket(sClient);
  186.         }

  188.         //關(guān)閉套接字，釋放資源
  189.         //closesocket(sClient);
  190.         WSACleanup();

  192.         return 0;
  193. }
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所有資料51hei提供下載:
掃描目的主機(jī)端口.zip (4.76 KB, 下載次數(shù): 14)




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