# 简单的端口扫描工具

# 作者: Charles

# 公众号: Charles的皮卡丘

import time

import socket

import threading

# 判断是否为正确的IP地址。

def isIP(ip):

ip_addr = ip.split('.')

if len(ip_addr) != 4:

return False

for ipnum in ip_addr:

if not (0 <= int(ipnum) < 255):

return False

else:

return True

# 端口扫描工具

class scanThread(threading.Thread):

def __init__(self, ip, port_min=0, port_max=65535):

# 初始化。

threading.Thread.__init__(self)

self.port_max = port_max

self.port_min = port_min

self.ip = ip

# assert isinstance(int,self.port_min) and isinstance(int,self.port_max)

# 重写run

def run(self):

return self.__checker()

# 检测

def __checker(self):

for port in range(self.port_min,self.port_max):

self.__connect(port)

# 连接

def __connect(self,port):

socket.setdefaulttimeout(1)

self.sock = socket.socket()

try:

start_time = time.time()

self.sock.connect((self.ip,port))

end_time = time.time()

connect_time = int(start_time - end_time)

info = 'Find --> [IP]: %s, [PORT]: %s, [Connect Time]: %d' % (self.ip, port, connect_time)

print(info)

self.__save(info)

self.sock.close()

except:

# print('出错误了')

self.sock.close()

def __save(self,info):

try:

with open('results.txt', 'a') as f:

f.write(info + '\n')

except:

print('写文件出现了问题')

time.sleep(0.1)

if __name__ == '__main__':

# 输入IP地址。

ip = input('Input IP(example ):\n')

print(isIP(ip))

while not isIP(ip):

ip = input('请输入正确的IP地址:\n')

# 输入最小端口、

port_min = input('需要扫描的最小端口为：')

while not (0 <= int(port_min) < 65535):

port_min = input('请输入正确的需要扫描的最小端口：')

port_max = input('需要扫描的最大端口为(65535)：')

while not (0 <= int(port_min) < int(port_max) < 65535):

port_min = input('请输入正确的需要扫描的最大端口(65535)：')

num = 8

port_max = int(port_max)

port_min = int(port_min)

interval = (port_max - port_min) // num

for i in range(interval):

scanThread(ip, i * num, (i + 1) * num).start()