#!/usr/bin/env python 
import urllib,os,os.path,sys

if len(sys.argv) > 1:
	outfile = sys.argv[1]
else: 
	outfile = raw_input("Insert output file Name: ")

outpage=str(os.path.dirname(sys.argv[0]) + '/' + outfile)

try: 
	inbroad = urllib.urlopen("http://www.netscan.org/order_by_ip.txt")
except IOError:
	print " Cannot fetch broadcast file, check its url or try again later. Exiting. "
	sys.exit(0)

try:
	outbroad = open(outpage,'w')
except IOError:
	print " Cannot open output file. Exiting "
	sys.exit(0)

for line in inbroad.readlines():
	outbroad.write(line.split()[0] + '\n')

outbroad.close()
print "Done. check out %s" %(outpage)