python、C++ 掃描端口

都是在 VS2015 實驗的

 

1、python 單線程

import socket

while True:
    #引入協議族AF_INET和SOCK_STREAM
    sm=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sm.settimeout(1)
    ip = input("靶機ip：")
    dk=input("靶機開始端口:")
    startport = int(dk)
    dk= input("靶機結束端口：")
    endport = int(dk)

    for port in range(startport, endport + 1):
        print("正在掃描端口：%d" % port)
        try:
            sm.connect((ip, port))
            print("服務器 %s 端口 %d 開啓!" % (ip, port))
        except Exception:
            print("服務器 %s 端口 %d 找不到!" % (ip, port))
    sm.close()

 

2、C++ 單線程

// scanPort.cpp : 定義控制檯應用程序的入口點。
//

#include "stdafx.h"
#include  <iostream>
#include <string.h>
#include <winsock.h> 
using namespace std;
#pragma comment(lib,"ws2_32.lib") 
#pragma warning(disable : 4996)
int main()
{
	WORD wVersion = MAKEWORD(2, 0);
	WSADATA wsaData;


	struct sockaddr_in sin; //socket信息。

	int iFromPort;  //起始端口號
	int iToPort;    //截至端口號
	int iNowPort;   //正在處理的端口號

	char cHost[20]; //IP
	SOCKET s;
	int iOpenPort;  //統計開放的端口個數 。
	iOpenPort = 0;
	char choose;    //是否存儲到文件中。
	FILE *tp;


	cout << "請輸入待檢測IP：";
	cin >> cHost;
	cout << "請輸入起始端口號：";
	cin >> iFromPort;
	cout << "請輸入截至端口號：";
	cin >> iToPort;

	cout << "是否把掃描結果保存到文件(y/n)：";
	cin >> choose;

	if (choose == 'y')
	{
		tp = fopen("Out.txt", "w+");
		fprintf(tp, "IP：%s      掃描結果如下：\n", cHost);
	}


	if (iFromPort > iToPort || iFromPort < 0 || iFromPort >65535 || iToPort <0 || iToPort >65535)
	{
		printf("端口號輸入錯誤！\n");
		return 0;
	}

	if (WSAStartup(wVersion, &wsaData))
	{
		printf("初始化失敗！\n");
		return -1;
	}

	printf("======= 開始掃描 ======= \n");
	for (iNowPort = iFromPort; iNowPort <= iToPort; iNowPort++)
	{
		s = socket(AF_INET, SOCK_STREAM, 0);
		if (s == INVALID_SOCKET)
		{
			printf("創建socket()失敗！ \n");
			WSACleanup();
		}

		sin.sin_family = AF_INET;
		sin.sin_port = htons(iNowPort);
		sin.sin_addr.S_un.S_addr = inet_addr(cHost);

		if (connect(s, (struct sockaddr*)&sin, sizeof(sin)) == SOCKET_ERROR)
		{
			printf("%s -> %d:未開放 \n", cHost, iNowPort);
			closesocket(s);
		}
		else
		{
			if (choose == 'y')
			{
				fprintf(tp, "端口：%d     開放\n", iNowPort);
			}
			printf("%s -> %d:開放 \n", cHost, iNowPort);
			iOpenPort++;
			closesocket(s);
		}
	}

	printf("======= 掃描結果 ======= \n");
	printf("主機：%s 掃描到%d個端口開放\n", cHost, iOpenPort);
	if (choose == 'y')
	{
		fclose(tp);
	}
	closesocket(s);
	WSACleanup();
	return 0;
}

核心代碼：

 

3、C++多線程（掃描結果不準）

#include "stdafx.h"
#include <winsock2.h>
#include <stdio.h>
#include <Windows.h>
#include <ws2tcpip.h>
#include <time.h>
#pragma comment(lib,"WS2_32.lib")
#pragma warning(disable : 4996)
DWORD WINAPI ScanThread(LPVOID port);

int main(int argc, char* argv[])
{
	WSADATA  wsd;
	int port = 0;
	int MAX_PORT;
	clock_t start, end;
	HANDLE handle;
	DWORD dwThreadId;
	//Initialize socket lib
	if (WSAStartup(MAKEWORD(2, 2), &wsd) != 0)
	{
		printf("WSAStartup failed!\n");
		return 1;
	}
	printf("請輸入要掃描的最大端口：");
	scanf("%d", &MAX_PORT);
	printf("Scaning......\n");
	start = clock();
	//掃描的主要代碼，根據需要刪減
	do {
		handle = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)ScanThread, (LPVOID)port, 0, &dwThreadId);
		port++;
	} while (port < MAX_PORT);
	WaitForSingleObject(handle, INFINITE);//等待最後一個線程結束
	end = clock();
	int duration = end - start;
	printf("總耗時 %d ms", duration);
	system("pause");
	return 0;
}

DWORD WINAPI ScanThread(LPVOID port)
{
	int Port = (int)(LPVOID)port;
	int retval;//調用各種socket函數的返回值
	SOCKET sHost;
	SOCKADDR_IN servAddr;
	sHost = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	if (INVALID_SOCKET == sHost)
	{
		printf("socket failed!\n");
		WSACleanup();
		return -1;
	}
	servAddr.sin_family = AF_INET;
	servAddr.sin_addr.S_un.S_addr = inet_addr("123.125.115.110");
	//setsockopt (sHost, IPPROTO_TCP, TCP_MAXRT, (char *)&Timeout, sizeof (Timeout));//設置快速掃描
	servAddr.sin_port = htons(Port);
	retval = connect(sHost, (LPSOCKADDR)&servAddr, sizeof(servAddr));//lpsockaddr is 環路地址
	if (retval == SOCKET_ERROR) {
		//printf("端口%d關閉！\n", Port);  //這裏不要使用WSACleanup（）函數，不然後續的線程會創建不了socket
		closesocket(sHost);
		return -1;
	}
	printf("端口%d開放！\n", Port);
	closesocket(sHost);
	return 1;
}

 

4、C++ 單線程

#include "stdafx.h"
#include <stdio.h>
#include<winsock.h>
#include<string.h>
#include<iostream>
using namespace std;
#pragma comment(lib,"wsock32.lib")
int _tmain(int argc, _TCHAR* argv[])
{
	WSADATA wsaData;
	if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
	{
		cout << "WSAStartup  無法初始化！" << endl;
		return 0;
	}
	// 填寫遠程地址信息
	sockaddr_in addr;
	addr.sin_family = AF_INET;
	while (true)
	{
		char aim_ip[100];
		cout << "請輸入目的主機IP地址：";
		cin >> aim_ip;
		cout << endl;
		//設置獲取的用戶輸入IP地址爲遠程IP地址 
		addr.sin_addr.S_un.S_addr = inet_addr(aim_ip);
		int port_start;
		int port_end;
		cout << "請輸入起始端口號：";
		cin >> port_start;
		cout << endl;
		cout << "請輸入結束端口號：";
		cin >> port_end;
		cout << endl;
		for (int i = port_start; i <= port_end; i++)
		{
			//每掃描一個端口創建一個新的套接字
			SOCKET s = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
			if (s == INVALID_SOCKET)
			{
				printf("Failed socket() %d \n", ::WSAGetLastError());
				//return -1;
			}
			//設置遠程地址信息中的端口號爲需要掃描的當前端口號
			addr.sin_port = htons(i);
			int ret = connect(s, (LPSOCKADDR)&addr, sizeof(addr));
			if (ret == 0)
			{
				printf("%s:%d  端口開啓\n", aim_ip, i);
			}
			else
			{
				printf("%s:%d  端口關閉\n", aim_ip, i);
			}
			::closesocket(s);
		}
		cout << endl;
	}
	if (WSACleanup() == SOCKET_ERROR)
		cout << "WSACleanup 出錯！" << endl;
	return 0;
}

 

 

參考：

https://blog.csdn.net/DmxExcalibur/article/details/74977362