如何使用nmap打开子进程扫描子网并同时显示输出？

Question

我试图维护用户在文本框中给出的子网中的 IP 地址列表，然后使用最多 50 个线程同时对它们进行 nmap，并在完成后立即显示每个 IP 的结果。代码抛出多个错误，特别是在子进程部分：-

# Scanning subnet of IP Addresses using NMAP

def Scan_IP(self):
    num_threads = 50
    global user_IP, i, scanout_q
    scanin_q = queue.Queue()
    scanout_q = queue.Queue()

    text = str(self.textbox.text().strip())

    # Fetching IP/ Subnet
    if text.upper().isupper() is False:
        try:
            def scan(i, q):
                while True:
                    # get an IP item from queue
                    IP = q.get()
                    
                    # scan nw devices
                    arg = f'nmap, -Pn, --open, -T5, {str(IP)}'
                    p4 = subprocess.Popen(arg, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, encoding="utf-8", shell=True)

                    p5 = subprocess.Popen(
                        ["awk", "/scan report/; /STATE/; /tcp/; /type:/; Running/; /details:/; /Service Info:/"],
                        stdin=p4.stdout, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, encoding="utf-8", shell = True)

                    output = p5.stdout.communicate()

                    # But do not wait till nmap finish, start displaying output immediately #
                    while True:
                        output = output.stderr.read()

                        if output == '':
                            pass
                        else:
                            sys.scanout_q.write(output)
                            sys.scanout_q.put(output)

                            sys.scanout_q.flush()

                    q.task_done()

            # start thread pool
            for i in range(num_threads):
                worker = Thread(target=scan, args=(i, scanin_q))
                worker.setDaemon(True)
                worker.start()

            # entering it into queue/ fill queue
            IP_List = []
            for IP in IPv4Network(text):
                scanin_q.put(IP)
                IP_List.append(IP)

            # queue management: wait until worker threads are done to exit
            scanin_q.join()

        except Exception as e:
            print(e)

    else:
        errorMsg = '\nInvalid IP Address/ Subnet; Try again!'
        print(errorMsg)

错误：- 回溯（最近一次调用最后一次）： 文件“C:\Users\user01\AppData\Local\Programs\Python\Python39\lib hreading.py”，第 917 行，运行 self._target(*self._args, **self._kwargs

文件“E:\PyCodes\NMAP.py”，第 218 行，扫描输出 = p5.stdout.communicate()

AttributeError：“_io.TextIOWrapper”对象没有属性“communicate”

Answer 1

最好运行

nmap

的单个实例并扫描多个目标。 可能有用的 nmap 选项（参见

man nmap

）：

-iL <inputfilename>

目标列表

-oG -

以 grepable 格式输出到标准输出