python 实现ping测试延迟的两种方法

一.python实现ping返回延迟繁琐版

#!/usr/bin/python3.7
# !coding:utf-8
__author__ = 'hsz'
__date__ = 'Thu Feb 27 22:41:15 EST 2020'

import time
import struct
import socket
import select
import sys

def chesksum(data):
 """
 校验
 """
 n = len(data)
 m = n ％ 2
 sum = 0
 for i in range(0, n - m, 2):
   sum += (data[i]) + ((data[i + 1]) << 8) # 传入data以每两个字节（十六进制）通过ord转十进制，第一字节在低位，第二个字节在高位
 if m:
   sum += (data[-1])
 # 将高于16位与低16位相加
 sum = (sum >> 16) + (sum & 0xffff)
 sum += (sum >> 16) # 如果还有高于16位，将继续与低16位相加
 answer = ~sum & 0xffff
 # 主机字节序转网络字节序列（参考小端序转大端序）
 answer = answer >> 8 | (answer << 8 & 0xff00)
 return answer

'''
 连接套接字,并将数据发送到套接字
 '''

def raw_socket(dst_addr, imcp_packet):
 rawsocket = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.getprotobyname("icmp"))
 send_request_ping_time = time.time()
 # send data to the socket
 rawsocket.sendto(imcp_packet, (dst_addr, 80))
 return send_request_ping_time, rawsocket, dst_addr

'''
 request ping
 '''

def request_ping(data_type, data_code, data_checksum, data_ID, data_Sequence, payload_body):
 # 把字节打包成二进制数据
 imcp_packet = struct.pack('>BBHHH32s', data_type, data_code, data_checksum, data_ID, data_Sequence, payload_body)
 icmp_chesksum = chesksum(imcp_packet) # 获取校验和
 imcp_packet = struct.pack('>BBHHH32s', data_type, data_code, icmp_chesksum, data_ID, data_Sequence, payload_body)
 return imcp_packet
 '''
 reply ping
 '''

def reply_ping(send_request_ping_time, rawsocket, data_Sequence, timeout=2):
 while True:
   started_select = time.time()
   what_ready = select.select([rawsocket], [], [], timeout)
   wait_for_time = (time.time() - started_select)
   if what_ready[0] == []: # Timeout
     return -1
   time_received = time.time()
   received_packet, addr = rawsocket.recvfrom(1024)
   icmpHeader = received_packet[20:28]
   type, code, checksum, packet_id, sequence = struct.unpack(
     ">BBHHH", icmpHeader
   )
   if type == 0 and sequence == data_Sequence:
     return time_received - send_request_ping_time
   timeout = timeout - wait_for_time
   if timeout <= 0:
     return -1

'''
 实现 ping 主机/ip
 '''

def ping(host):
 data_type = 8 # ICMP Echo Request
 data_code = 0 # must be zero
 data_checksum = 0 # "...with value 0 substituted for this field..."
 data_ID = 0 # Identifier
 data_Sequence = 1 # Sequence number
 payload_body = b'abcdefghijklmnopqrstuvwabcdefghi' # data
 dst_addr = socket.gethostbyname(host) # 将主机名转ipv4地址格式，返回以ipv4地址格式的字符串，如果主机名称是ipv4地址，则它将保持不变
 print("正在 Ping {0} [{1}] 具有 32 字节的数据:".format(host, dst_addr))
 for i in range(0, 4):
   icmp_packet = request_ping(data_type, data_code, data_checksum, data_ID, data_Sequence + i, payload_body)
   send_request_ping_time, rawsocket, addr = raw_socket(dst_addr, icmp_packet)
   times = reply_ping(send_request_ping_time, rawsocket, data_Sequence + i)
   if times > 0:
     print("来自 {0} 的回复: 字节=32 时间={1}ms".format(addr, int(times * 1000)))
     time.sleep(0.7)
   else:
     print("请求超时。")

if __name__ == "__main__":
 # if len(sys.argv) < 2:
 #   sys.exit('Usage: ping.py <host>')
 ping('www.baidu.com') # sys.argv[1]

二 .python实现ping返回延迟简单版本

from ping3 import ping

def ping_host(ip):
 """
 获取节点的延迟的作用
 :param node:
 :return:
 """
 ip_address = ip
 response = ping(ip_address)
 print(response)
 if response is not None:
   delay = int(response * 1000)
   print(delay, "延迟")
   # 下面两行新增的

ping_host('www.baidu.com')

来源：https://www.cnblogs.com/hszstudypy/p/12424817.html