#coding=utf-8
import platform
import sys
import os
import time
import thread

def get_os():
    '''
    get os 类型
    '''
    os = platform.system()
    if os == "Windows":
        return "n"
    else:
        return "c"

def ping_ip(ip_str):
    cmd = ["ping", "-{op}".format(op=get_os()),
           "1", ip_str]
    output = os.popen(" ".join(cmd)).readlines()

    flag = False
    for line in list(output):
        if not line:
            continue
        if str(line).upper().find("TTL") >=0:
            flag = True
            break
    if flag:
        print "ip: %s is ok ***"%ip_str

def find_ip(ip_prefix):
    '''
    给出当前的127.0.0 ，然后扫描整个段所有地址
    '''
    for i in range(1,256):
        ip = '%s.%s'%(ip_prefix,i)
        thread.start_new_thread(ping_ip, (ip,))
        time.sleep(0.3)

if __name__ == "__main__":
    print "start time %s"%time.ctime()
    commandargs = sys.argv[1:]
    args = "".join(commandargs)

    ip_prefix = '.'.join(args.split('.')[:-1])
    find_ip(ip_prefix)
    print "end time %s"%time.ctime()