本文實例講述了Python實現(xiàn)的端口掃描功能。分享給大家供大家參考，具體如下：

一 代碼

import sysimport socketimport multiprocessingdef ports(ports_service):  #獲取常用端口對應(yīng)的服務(wù)名稱  for port in list(range(1,100))+[143,145,113,443,445,3389, 8080]:    try:      ports_service[port] = socket.getservbyport(port)    except socket.error:      passdef ports_scan(HOST, ports_service):  ports_open = []  try:    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    #sock.settimeout(60)  except socket.error:    print('socket creation error')    sys.exit()  for port in ports_service:    try:      #嘗試連接指定端口      sock.connect((HOST,port))      #記錄打開的端口      ports_open.append(port)      sock.close()    except socket.error:      pass  return ports_openif __name__=='__main__':  m = multiprocessing.Manager()  ports_service = dict()  results = dict()  ports(ports_service)  #創(chuàng)建進程池，允許最多8個進程同時運行  pool = multiprocessing.Pool(processes=8)  net = '192.168.0.'  for host_number in map(str,range(105,106)):    host = net+host_number    #創(chuàng)建一個新進程，同時記錄其運行結(jié)果    results[host] = pool.apply_async(ports_scan, (host, ports_service))    print('starting '+host+'...')  #關(guān)閉進程池，close()必須在join()之前調(diào)用  pool.close()  #等待進程池中的進程全部執(zhí)行結(jié)束  pool.join()  #打印輸出結(jié)果  for host in results:    print('='*30)    print(host,'.'*10)    for port in results[host].get():      print(port, ':', ports_service[port])

二 運行結(jié)果

starting 192.168.0.105...
==============================
192.168.0.105 ..........
80 : http

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希望本文所述對大家Python程序設(shè)計有所幫助。