python实现ping的方法

本文实例讲述了python实现ping的方法。分享给大家供大家参考。具体如下：

#!/usr/bin/env python
#coding:utf-8
import os, sys, socket, struct, select, time
# From /usr/include/linux/icmp.h; your milage may vary.
ICMP_ECHO_REQUEST = 8 # Seems to be the same on Solaris.
def checksum(source_string):
  """
  I'm not too confident that this is right but testing seems
  to suggest that it gives the same answers as in_cksum in ping.c
  """
  sum = 0
  countTo = (len(source_string)/2)*2
  count = 0
  while count> 16) + (sum & 0xffff)
  sum = sum + (sum >> 16)
  answer = ~sum
  answer = answer & 0xffff
  # Swap bytes. Bugger me if I know why.
  answer = answer >> 8 | (answer dest_addr<. dest_addr="socket.gethostbyname(dest_addr)" header is type code checksum id sequence my_checksum="0" make a dummy heder with checksum. icmp_echo_request struct.unpack test bytesindouble='struct.calcsize("d")' data="(192" time.time calculate the on and header. now that we have right put in. it just easier to up new than stuff into dummy. socket.htons packet="header" my_socket.sendto don know about def do_one timeout returns either delay seconds or none timeout. icmp='socket.getprotobyname("icmp")' try: my_socket="socket.socket(socket.AF_INET," socket.sock_raw except socket.error msg if errno="=" operation not permitted note messages can only be sent from processes running as root. raise original error my_id="os.getpid()" send_one_ping my_socket.close return verbose_ping count="100):" send>countdest_addrtimeout

希望本文所述对大家的Python程序设计有所帮助。
声明：本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系[e-mail]核实处理。

相关文章

相关视频

---

• 一文了解Python中如何使用query()进行优...
• python fabric实现远程操作和部署示例
• python抓取网页中的图片示例
• 简单谈谈Python中的闭包
• python实现ping的方法

• Python 简介
• Python 环境搭建
• Python 中文编码
• Python 基础语法
• Python 变量类型