#!/usr/bin/python import subprocess,re,logging from arping import arpingy from multiprocessing import Pool DEV='eth0' MAC_NAMES='mac_names.lst' data = [] ret = {} exit (0) def get_own_addr(): data = subprocess.Popen(['/sbin/ifconfig',DEV], stdout=subprocess.PIPE).communicate()[0].replace('\n','') return re.sub(r'.*HWaddr ([0-9A-Fa-f:]*).*inet addr:([0-9.]*).*' , r'\1 \2',data).split() def load_names(MAC_NAMES): names = {} f = open(MAC_NAMES) for l in f: mac,name = l.split() names[mac] = name.replace('\n','') f.close() return names def arping_helper(dic): return arpingy(**dic) for first in range(3): for second in range(255): data.append({'iprange':'10.42.'+str(first)+'.'+str(second),'iface':DEV}) names = load_names(MAC_NAMES) try: p = Pool(20) ret = filter(lambda x:x , p.map(arping_helper, data)) myip,mymac = get_own_addr() ret.append([mymac,myip]) p.terminate() except: print 'you fail' for p in ret: if p[1] in names: print names[p[1]]+ " is online"