我真不知道會引起世界大戰~~~

作者：Jekkay Hu([email protected])

關鍵詞：主機掃描，主機存活，純python版本,非nmap

時間： 2014/1/21

    最近受好友所託寫個python指令碼，就是掃描區域網的主機存活的情況，這個在內網滲透時非常有用，因為你在跳板機上貿然安裝namp等掃描工具，則很容易被發現，我抽時間寫了個python指令碼，使用ping工具來監測主機存活情況。我寫的這個指令碼時採用單執行緒的方式工作，所效率不是很快，下個版本我在優化成多執行緒的版本，同時也讓支援掃描埠等功能。

#!/usr/bin/env python
#-*- coding: utf8 -*-
#
# Author: Jekkay Hu
# Date: 2014/1/21
# Email: 
 
[email protected]
# QQ: 34538980
#

import os
import sys

# Convert IP Format:  Number['3232247553] <----> String ['192.168.47.1']
IPNumToString = lambda x: '.'.join([str(x/(256**i)%256) for i in range(3,-1,-1)])
IPStringToNum = lambda x:sum([256**j*int(i) for j,i in enumerate(x.split('.')[::-1])])
# start IP -- End IP
StartIP = 0
EndIP = 0

def welcome():
    welcomeinfo = """
======================================================
=                                                    =
=                    scanhost V1.0                   =
=           Jekkay Hu,  Written in 2014/1/21         =
=           
 
[email protected], [email protected]        =
= More please visit: http://blog.csdn.net/hujkay     =
=                                                    =
======================================================
"""
    print welcomeinfo

def help():
    helpinfo = """
======================================================
=                                                    =
=                    scanhost V1.0                   =
=           Jekkay Hu,  Written in 2014/1/21         =
=           
 
[email protected], [email protected]        =
= More please visit: http://blog.csdn.net/hujkay     =
=                                                    =
=  Usage:                                            =
=    python scanhost.py 1.2.3.4                      =
=    python scanhost.py 1.2.3.4-255                  =
=    python scanhost.py 1.2.3.4 - 1.2.4.5            =
======================================================
"""
    print helpinfo

def parseargs():
    try:
        commandargs = sys.argv[1:]
        if not commandargs:
            return False
        commandargs = ''.join(commandargs)
        commandargs = commandargs.split('-')
        global StartIP
        global EndIP
        commandlen = len(commandargs)
        if commandlen == 1:
            StartIP = EndIP = int(IPStringToNum(commandargs[0]))
        elif commandlen == 2:
            StartIP = commandargs[0]
            EndIP = commandargs[1]
            if len(StartIP.split('.')) !=4 :
                return False
            endiplen =  len(EndIP.split('.'))
            if endiplen == 1:
                prefixip = StartIP.split('.')[0:3]
                prefixip.append(EndIP)
                EndIP = '.'.join(prefixip)
            elif endiplen == 4:
                pass
            else:
                return False
            #print "startip",StartIP,",endip:",EndIP
            StartIP = int(IPStringToNum(StartIP))
            EndIP   = int(IPStringToNum(EndIP))
    except Exception,e:
        # any exception occurs
        print e
        return False
    
    return True


def checkhoston(ip):
    try:
        cmd = ['ping',
               '%s' % IPNumToString(ip),
               '-c',
               '1']
        output = os.popen(' '.join(cmd)).readlines()
        for line in list(output):
            if not line:
                continue
            if str(line).find('ttl') >= 0 or str(line).find('TTL') >= 0:
                return True
        
    except:
        pass

def processcheckhost(): 
    global StartIP
    global EndIP
    alivecount = 0
    StartIP = int(StartIP)
    EndIP = int(EndIP)
    totalip = EndIP - StartIP + 1
    if totalip <= 0:
        help()
        exit(0)
        
    print 'Startint scan ',IPNumToString(StartIP),' -> ',IPNumToString(EndIP), ',please wait...'
    fd = open('scanhost.txt',"w")
    #for i in xrange(StartIP,EndIP+1,1):
    ip = StartIP
    
    while True:
        if ip > EndIP:
            break 
        if checkhoston(ip):
            fd.write(IPNumToString(ip))
            alivecount = alivecount + 1
            #print IPNumToString(ip)
        ip = ip + 1
        sys.stdout.write('#')
        if (ip-StartIP) % 20 == 0:
            sys.stdout.write('\r\n')
    fd.close()
    return alivecount

def showresult(shownum):
    fd = open('scanhost.txt',"r")
    for line in fd.readlines(shownum):
        print line
    fd.close()
        
def main():
    if not parseargs():
        help()
        exit(0)
    welcome()
    alivecount = processcheckhost()
    print "\r\n [%d] host is on,please see the scanhost.txt, top 300 will be shown below" % alivecount
    showresult(300)
    if alivecount > 300:
        print "More ips please see scanhost.txt"
    

if __name__ == '__main__':
    main()

   胡楊, Jekkay Hu

2014/1/21