python第五次作业

编写一个脚本test_ip.py实现指定参数的远程主机网络探测

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python test_ip.py 192.168.0.10 192.168.0.100

针对192.168.0.10~192.168.0.100范围内所有主机进行网络探测

#首先导入了subprocess用于执行外部命令
import subprocess
import sys

#定义了ping_host 函数
def ping_host(ip):
    try:
        result = subprocess.run(['ping', '-c', '3', ip], capture_output=True, text=True, timeout=5)
        if result.returncode == 0:
            print(f"{ip} is reachable.")
        else:
            print(f"{ip} is not reachable.")
    except subprocess.TimeoutException:
        print(f"{ip} timed out.")


if#检查命令行参数是否正确，然后将起始和结束IP拆分成网段，通过循环对范围内的每个IP执行 ping_host 函数进行网络探测 __name__ == "__main__":
    if len(sys.argv)!= 3:
        print("Usage: python test_ip.py start_ip end_ip")
        sys.exit(1)

    start_ip = sys.argv[1]
    end_ip = sys.argv[2]

    start_octets = list(map(int, start_ip.split('.')))
    end_octets = list(map(int, end_ip.split('.')))

    for i in range(start_octets[3], end_octets[3] + 1):
        ip = f"{start_octets[0]}.{start_octets[1]}.{start_octets[2]}.{i}"
        ping_host(ip)