网站测速 ping 二进制的包 怎么写

wzlm1688

怎么写二进制的包，服务器

尛龍科技

[Python] 纯文本查看 复制代码

import socket
import struct
import time
import os
import sys

def calculate_checksum(data):
    s = 0
    for i in range(0, len(data), 2):
        if i + 1 < len(data):
            a = data
            b = data[i + 1]
            s += (a + (b << 8))
        else:
            s += data
    s = (s >> 16) + (s & 0xffff)
    s += s >> 16
    return ~s & 0xffff

def create_icmp_packet(id, seq):
    type = 8
    code = 0
    checksum = 0
    identifier = id
    sequence = seq
    data = b'Hello, this is a ping packet.'

    header = struct.pack('!BBHHH', type, code, checksum, identifier, sequence)
    checksum = calculate_checksum(header + data)
    header = struct.pack('!BBHHH', type, code, socket.htons(checksum), identifier, sequence)
    return header + data

def ping(host, count=4):
    try:
        dest_addr = socket.gethostbyname(host)
    except socket.gaierror:
        print(f"无法解析主机名: {host}")
        return

    try:
        if os.name == 'nt':
            sock = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)
        else:
            sock = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.getprotobyname("icmp"))
        sock.settimeout(2)
    except PermissionError:
        print("运行此程序需要管理员/root权限")
        return

    pid = os.getpid() & 0xFFFF
    sent_packets = 0
    received_packets = 0
    rtt_min = float('inf')
    rtt_max = 0
    rtt_sum = 0

    print(f"正在Ping {host} [{dest_addr}] 具有 56(84) 字节的数据:")

    for seq in range(count):
        packet = create_icmp_packet(pid, seq)
        sent_time = time.time()

        try:
            sock.sendto(packet, (dest_addr, 1))
            sent_packets += 1

            recv_packet, addr = sock.recvfrom(1024)
            recv_time = time.time()
            received_packets += 1

            icmp_header = recv_packet[20:28]
            icmp_type, icmp_code, icmp_checksum, icmp_id, icmp_seq = struct.unpack('!BBHHH', icmp_header)

            if icmp_type == 0 and icmp_id == pid:
                rtt = (recv_time - sent_time) * 1000
                rtt_min = min(rtt_min, rtt)
                rtt_max = max(rtt_max, rtt)
                rtt_sum += rtt
                print(f"来自 {dest_addr} 的回复: 字节=56 时间={rtt:.2f}ms TTL=64")
        except socket.timeout:
            print("请求超时。")
        except Exception as e:
            print(f"发生错误: {e}")

    sock.close()

    print(f"\n{host} 的Ping统计信息:")
    print(f"    数据包: 已发送 = {sent_packets}, 已接收 = {received_packets}, 丢失 = {sent_packets - received_packets} ({(sent_packets - received_packets)/sent_packets*100:.1f}% 丢失),")
    
    if received_packets > 0:
        print("往返行程的估计时间(以毫秒为单位):")
        print(f"    最短 = {rtt_min:.2f}ms, 最长 = {rtt_max:.2f}ms, 平均 = {rtt_sum/received_packets:.2f}ms")

if __name__ == "__main__":
    if len(sys.argv) > 1:
        target = sys.argv[1]
    else:
        target = input("请输入要Ping的主机名或IP地址或者服务器IP: ")
    ping(target)