本文实例讲述了Python扫描IP段查看指定端口是否开放的方法。分享给大家供大家参考。具体实现方法如下:
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#!/usr/local/bin/python
#-*- coding: UTF-8 -*-
####################################################################
##################################################
#BLOG:http://hi.baidu.com/alalmn
# Python 扫描IP段 指定端口是否开放
##################################################
import socket
import threading,time
socket.setdefaulttimeout( 10 ) #设置了全局默认超时时间
#查看IP端口是否开放
class socket_port(threading.Thread):
def __init__( self ,cond, name):
super (socket_port, self ).__init__()
self .cond = cond
self .cond. set () #将标识位设为Ture
self .HOST = name
def run( self ):
#time.sleep(1) #确保先运行Seeker中的方法
try :
PORT = 21
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(( self .HOST,PORT))
print ""
print self .HOST,u ":" ,PORT,u "端口开放"
#self.cond.wait()#堵塞线程,直到Event对象内部标识位被设为True或超时(如果提供了参数timeout)。
self .cond. set () #将标识位设为Ture
return 1
except :
print "." ,
#print self.HOST,u":",PORT,u"端口未开放"
#self.cond.wait()#堵塞线程,直到Event对象内部标识位被设为True或超时(如果提供了参数timeout)。
self .cond. set () #将标识位设为Ture
return 0
##
#socket_port("192.168.2.1")
#if socket_port("192.168.2.100"):
# print "开放"
#else:
# print "未开放"
def ip2num(ip):
ip = [ int (x) for x in ip.split( '.' )]
return ip[ 0 ]<< 24 | ip[ 1 ]<< 16 | ip[ 2 ]<< 8 | ip[ 3 ]
def num2ip(num):
#time.sleep(0.05) #50ms
#time.sleep(0.1) #s
# data='%s.%s.%s.%s' % ( (num & 0xff000000) >> 24,
# (num & 0x00ff0000) >> 16,
# (num & 0x0000ff00) >> 8,
# num & 0x000000ff )
# #socket_port(data) #查看IP端口是否开放
if num> = IPend:
print u "IP导入数组完成"
return '%s.%s.%s.%s' % ( (num & 0xff000000 ) >> 24 ,
(num & 0x00ff0000 ) >> 16 ,
(num & 0x0000ff00 ) >> 8 ,
num & 0x000000ff )
def gen_ip(ip1,ip2): #返回数组
# ip
# global IPend
# start, IPend = [ip2num(x) for x in ip.split('-')]
global IPend
IPend = ip2
return [num2ip(num) for num in range (ip1,ip2 + 1 ) if num & 0xff ]
import ini
if __name__ = = '__main__' :
ini.ini_get() #读取INI
list_ip = gen_ip(ip2num(ini.IP1),ip2num(ini.IP2))
I1 = 0 #得到list的第一个元素
print u "开始扫描IP"
ip = 0
while I1 < len (list_ip):
#print list_ip[I1]
time.sleep( 0.3 ) #确保先运行Seeker中的方法
cond = threading.Event()
hider = socket_port(cond,list_ip[I1])
hider.start()
if ip> = 255 :
ini.ini_write(list_ip[I1],ini.IP2) #修改INI
print ip
ip = 0
ip = ip + 1
I1 = I1 + 1 #一层
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ini.py:
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#!/usr/local/bin/python
#-*- coding: UTF-8 -*-
##################################################
#qq:316118740
#BLOG:http://hi.baidu.com/alalmn
# Python 操作ini文件
# 刚学写的不好请大家见谅
##################################################
IP1 = "" #扫描IP
IP2 = "" #当前已经扫到的IP
INITXT = "IP.ini" #INI文件名字
import ConfigParser
def ini_get(): #读取INI
try :
global IP1
global IP2
global INITXT
config = ConfigParser.ConfigParser()
config.readfp( open (INITXT))
IP1 = config.get( "ipdata" , "ip1" )
IP2 = config.get( "ipdata" , "ip2" )
except :
print "读取INI错误"
ini_add(" "," ") #写入INI
def ini_add(ip1,ip2): #写入INI
try :
global INITXT
config = ConfigParser.ConfigParser()
config.add_section( "ipdata" ) # 设置section段及对应的值
config. set ( "ipdata" , "ip1" ,ip1)
config. set ( "ipdata" , "ip2" ,ip2)
config.write( open (INITXT, "w" )) # 写入文件
except :
print "写入INI错误"
def ini_write(ip1,ip2): #修改INI
try :
global INITXT
config = ConfigParser.ConfigParser()
config.read(INITXT)
if not config.has_section( "ipdata" ): #看是否存在该Section,不存在则创建
temp = config.add_section("")
config. set ( "ipdata" , "ip1" ,ip1)
config. set ( "ipdata" , "ip2" ,ip2)
config.write( open (INITXT, "r+" ))
except :
print "修改INI错误"
ini_add(" "," ") #写入INI
#if __name__=='__main__':
## ini_get() #读取INI
## print IP1
## print IP2
#
## ini_add("222222222","3333333333333") #写入INI
## ini_get() #读取INI
## print IP1
## print IP2
#
# ini_write("999999999","0000000000") #修改INI
# ini_get() #读取INI
# print IP1
# print IP2
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运行:
复制代码 代码如下:
python TCP21.py
希望本文所述对大家的Python程序设计有所帮助。