Python端口扫描简单程序

时间:2021-07-14 13:43:03

本文实例为大家分享了Python端口扫描的实现代码,供大家参考,具体内容如下

获取本机的IP和端口号:

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import socket
 
def get_my_ip():
  try:
    csock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    csock.connect(('8.8.8.8', 80))
    (addr, port) = csock.getsockname()
    csock.close()
    return addr,port
  except socket.error:
    return "127.0.0.1"
 
def int_to_ip(int_ip):
  return socket.inet_ntoa(struct.pack('I', socket.htonl(int_ip)))
 
 
def ip_to_int(ip):
  return socket.ntohl(struct.unpack("I", socket.inet_aton(str(ip)))[0])
 
(ip,port)=get_my_ip()
print "ip=%s port=%d" %(ip,port)

PortScan.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
 
import optparse
from socket import *
from threading import *
 
screenLock = Semaphore(value=1)
 
def connScan(tgtHost, tgtPort):
  try:
    connSkt = socket(AF_INET, SOCK_STREAM)
    connSkt.connect((tgtHost, tgtPort))
    connSkt.send('ViolentPython\r\n')
    results = connSkt.recv(100)
    screenLock.acquire()
    print '[+] %d/tcp open' % tgtPort
    print '[+] ' + str(results)
  except:
    screenLock.acquire()
    print '[-] %d/tcp closed' % tgtPort
  finally:
  screenLock.release()
  connSkt.close() 
 
def portScan(tgtHost, tgtPorts):
  try:
    tgtIP = gethostbyname(tgtHost)
  except:
    print "[-] Cannot resolve '%s': Unknown host" %tgtHost
    return
 
  try:
    tgtName = gethostbyaddr(tgtIP)
    print '\n[+] Scan Results for: ' + tgtName[0]
  except:
    print '\n[+] Scan Results for: ' + tgtIP
 
  setdefaulttimeout(1)
  for tgtPort in tgtPorts:
    t = Thread(target=connScan,args=(tgtHost,int(tgtPort)))
    t.start()
 
def main():
  parser = optparse.OptionParser('usage %prog '+\
   '-H <target host> -p <target port>')
  parser.add_option('-H', dest='tgtHost', type='string',\
   help='specify target host')
  parser.add_option('-p', dest='tgtPort', type='string',\
   help='specify target port[s] separated by comma')
 
  (options, args) = parser.parse_args()
 
  tgtHost = options.tgtHost
  tgtPorts = str(options.tgtPort).split(',')
 
  if (tgtHost == None) | (tgtPorts[0] == None):
  print parser.usage
    exit(0)
 
  portScan(tgtHost, tgtPorts)
 
 
if __name__ == '__main__':
  main()

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。