import socket
import time
import base64
def netcat(s,content=''):
	if content:
	    if content[-2::]!='\r\n':
	    	content = content + '\r\n'
	    s.sendall(content)

	# s.shutdown(socket.SHUT_WR)
	data = s.recv(1024)

    # print "Connection closed."
    # s.close()
	return repr(data)
username =
password =


def main():
	hostname =
	port =
	s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	s.connect((hostname, port))

	start_time = time.time()
	print netcat(s)
	print("--- Connection establishment time: %s seconds ---" % (time.time() - start_time))
	start_time = time.time()
	netcat(s,'USER ' + username + '')
	print netcat(s,'PASS ' + base64.b64decode(password) + '')
	print("--- Authentication time: %s seconds ---" % (time.time() - start_time))
	start_time = time.time()
	print netcat(s,'LIST')
	print netcat(s,'QUIT')
	s.close()
main()