#!/bin/env python
import re
from argparse import ArgumentParser


def expandrange(rangefunc,stepcnt=['1']):
    hosts = []
    step = str(stepcnt[0])
    octets = rangefunc.split('.')
    for i,octet in enumerate(octets):
        if '-' in octet:
            octetrange = octet.split('-')
            for digit in range(int(octetrange[0]), int(octetrange[1])+1, int(step)):
                ip = '.'.join(octets[:i] + [str(digit)] + octets[i+1:])
                hosts += expandrange(ip,stepcnt)
            break
    else:
        hosts.append(rangefunc)
    return hosts


parser = ArgumentParser('pingrange')
parser.add_argument('ip', help='IP range to ping, e.g., 10.1.0-1.0-255 will expand to 10.1.0.0/23')
parser.add_argument('options', type=int, default=['1'], nargs='*', help='Options to pass to ping')
args = parser.parse_args()
targets = expandrange(args.ip,args.options)



for ip in targets:
    print 'IP : %s' % ip