Python示例-TCP Port Scan

 import socket
 import threading

 # target host address
 host = "127.0.0.1"
 # thread list
 threads = []

 def tcp_connect_scan(host, port):
     '''
     TCP connect scanning
     @param host: ip, host name or domain name
     @param port: port number
     '''
     try:
         sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         sock.settimeout(1)
         result = sock.connect_ex((host, port))
         if result == 0:
             print("Host {} port {} status open".format(host, port))
         else:
             print("Host {} port {} status close".format(host, port))
     except socket.error as err:
         print("{}".format(err))
     finally:
         sock.close()

 def tcp_syn_scan(host, port):
     '''
     TCP SYN scanning
     @param host: ip, host name or domain name
     @param port: port number
     '''
     # To be continued
     pass

 def main():
     for port in range(0, 65535):
         t = threading.Thread(target=tcp_connect_scan, args=(host, port))
         threads.append(t)
         t.start()
     for task in threads:
         task.join()

 if __name__ == '__main__':
     main()