一.python實現ping返回延遲繁瑣版

__author__ = 'hsz' __date__ = 'Thu Feb 27 22:41:15 EST 2020'import time import struct import socket import select import sysdef chesksum(data):"""校驗"""n = len(data)m = n % 2sum = 0for i in range(0, n - m, 2):sum += (data[i]) + ((data[i + 1]) << 8) # 傳入data以每兩個字節（十六進制）通過ord轉十進制，第一字節在低位，第二個字節在高位if m:sum += (data[-1])# 將高于16位與低16位相加sum = (sum >> 16) + (sum & 0xffff)sum += (sum >> 16) # 如果還有高于16位，將繼續與低16位相加answer = ~sum & 0xffff# 主機字節序轉網絡字節序列（參考小端序轉大端序）answer = answer >> 8 | (answer << 8 & 0xff00)return answer '''連接套接字,并將數據發送到套接字''' 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 socketrawsocket.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):# 把字節打包成二進制數據imcp_packet = struct.pack('>BBHHH32s', data_type, data_code, data_checksum, data_ID, data_Sequence, payload_body)icmp_chesksum = chesksum(imcp_packet) # 獲取校驗和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] == []: # Timeoutreturn -1time_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_timetimeout = timeout - wait_for_timeif timeout <= 0:return -1 '''實現 ping 主機/ip''' def ping(host):data_type = 8 # ICMP Echo Requestdata_code = 0 # must be zerodata_checksum = 0 # "...with value 0 substituted for this field..."data_ID = 0 # Identifierdata_Sequence = 1 # Sequence numberpayload_body = b'abcdefghijklmnopqrstuvwabcdefghi' # datadst_addr = socket.gethostbyname(host) # 將主機名轉ipv4地址格式，返回以ipv4地址格式的字符串，如果主機名稱是ipv4地址，則它將保持不變print("正在 Ping {0} [{1}] 具有 32 字節的數據:".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("來自 {0} 的回復: 字節=32 時間={1}ms".format(addr, int(times * 1000)))time.sleep(0.7)else:print("請求超時。")if __name__ == "__main__":# if len(sys.argv) < 2:# sys.exit('Usage: ping.py <host>')ping('www.baidu.com') # sys.argv[1]

二 .python實現ping返回延遲簡單版本

''' 遇到問題沒人解答？小編創建了一個Python學習交流QQ群：531509025 尋找有志同道合的小伙伴，互幫互助,群里還有不錯的視頻學習教程和PDF電子書！ ''' from ping3 import ping def ping_host(ip):"""獲取節點的延遲的作用:param node::return:"""ip_address = ipresponse = ping(ip_address)print(response)if response is not None:delay = int(response * 1000)print(delay, "延遲")# 下面兩行新增的 ping_host('www.baidu.com')

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