#Beegie_B's IP Scanner v0.4 BETA 
#Scans IP's to see if they are online 
#Now Supports Ranges
#If you want to copy this program and distribute it please give reference to me.
#This program can be used freely by anyone
import os
from os import mkdir, rmdir, remove, chdir
from time import time, ctime
from socket import *

print """ 
  This is the BETA version of my IP scanner. Minor bugs were found
  in the scanner when used on Windows XP.
  Please report all bugs and improvement codes to: 
  webmaster@bastardshandbook.com.
  I need some people who can test this on Linux, Unix, and Mac for me.
  
  Creator: Beegie_B 
  Date: Mar 2, 2004 
  Version: 0.4 BETA 
  Tested On: Windows XP
  Changes Since v0.3 BETA: run change() to view
  ================================================================= 
  Run man() for help on use of the IP scanner. 
  """ 

def ipScan(ipStart, ipEnd, r): #r = range
  logWrite = "txt_logs/%s.txt" %(str(ctime(time())[0:10])) #This will make the log title the Date
  x = 3
  logHold = []
  for s in r:
    hold = [ipStart[0],ipStart[1],ipStart[2],ipStart[3]] #This will hold theorgiginal IP
    while int(ipStart[x]) <= int(ipEnd[x]) and int(ipStart[3]) <= int(ipEnd[3]):
      s = ipStart
      ipStart = ".".join(ipStart)
      scn = os.system("ping " + ipStart + " -w .1 -n 1") #-w = timeout, -n = number of scans
      if scn >= 0 and scn < 1: 
        print ipStart,": Online"
        logHold.append(ipStart + "\t" + gethostbyaddr(ipStart)[0] + "\tOnline")
      elif scn >= 1:
        print ipStart,": Offline"
        logHold.append(ipStart + "\t" + gethostbyaddr(ipStart)[0] + "\tOffline")
        #gethostbyaddr gets host name by putting in the IP address
      ipStart = s
      s = ipStart[3]
      s = int(s)
      s = s + 1
      s = str(s)
      ipStart[3] = s
    p = 0
    for k in hold: #Resets the original IP for further scanning
      ipStart[p] = hold[p]
      p = p + 1
    x = x-1
    n = int(ipStart[x]) + 1
    ipStart[x] = str(n)
    #str() converts to string, int() converts to integer
  logInfoHeader = "IP Address\tHost Name\t\t\tStatus"
  logInfo = "\n".join(logHold) #Joins all the log info into a string
  logInfo = "Scan Date: " + str(ctime(time())) + "\n\n" + logInfoHeader + "\n\n" + logInfo + "\n\n"
  try: #Will make a logs directory
    mkdir("logs")
    chdir("logs")
    mkdir("txt_logs")
    w = open(logWrite, "ar").write(logInfo) #Writes Log and saves as log.txt
  except OSError: #If the directory is made it will bypass making one
    try:
      chdir("logs")
      mkdir("txt_logs")
      w = open(logWrite, "ar").write(logInfo) #Writes Log and saves as log.txt
    except OSError:
      w = open(logWrite, "ar").write(logInfo) #Writes Log and saves as log.txt

def scanIP(): 
  ipStart = raw_input("IP Start: ")
  ipEnd = raw_input("IP End: ")
  ipStart = ipStart + "."
  ipEnd = ipEnd + "."
  h = x = 0
  rangeStart = []
  rangeEnd = []
  rangeDiff = []

  while len(rangeStart) < 4: #Grabs the IP address numbers without the "." for ipStart
    while ipStart[x] != ".":
      x = x+1
    rangeStart.append(ipStart[h:x])
    x = x+1
    h = x

  h = x = 0

  while len(rangeEnd) < 4: #Grabs the IP address numbers without the "." for ipEnd
    while ipEnd[x] != ".":
      x = x+1
    rangeEnd.append(ipEnd[h:x])
    x = x+1
    h = x

  x = 0
  
  for s in rangeStart: #Finds the range
    p = int(rangeStart[x])
    o = int(rangeEnd[x])
    rangeDiff.append(o-p)
    if rangeDiff[x] < 0:
      print "Invalid Range, Try Again"
      s = 4
    x = x+1
  if s == 4:
    pass
  else:
    ipScan(rangeStart, rangeEnd, rangeDiff) #Does the IP scan

def man(): 
  print """ 
  To run use the command scanIP() 
  The IP scanner is only tested on Windows XP but I belive it should 
  work on different OS's also. 
  When running the program make sure not to close the window that 
  gets oppend. Like I said, the scanner is only tested on Windows XP 
  and CMD will automatically close by itself. 
  """

def change():
  print """
  Changes since v0.3 BETA are:

  1. Now automatically logs the scan
  2. Hostname info is included in the log

  NOTE: An HTML View of the log will be added in the next version
  """