python实现超简单端口转发的方法

#tcp server 
import socket 
host = '127.0.0.1'          #Local Server IP 
host2 = '127.0.0.1'   #Real Server IP 
port = 6001 #Local Server Port 
port2 = 7001 #Real Server Port 
def ProcData(data): 
    return data 
    #add more code.... 
print "Map Server start from " + host + ":" + str(port) +" to " + host2 + ":" + str(port2) +"\r\n" 
server = socket.socket(socket.AF_INET,socket.SOCK_STREAM) 
server.bind(('127.0.0.1',port)) 
print "127.0.0.1 Server start at "+ str(port) +"\r\n" 
client = socket.socket( socket.AF_INET, socket.SOCK_STREAM ) 
client.connect((host2,port2)) 
print host +" Client connect to " + host2 + ":"+str(port2)+"\n" 
server.listen(5) 
ss, addr = server.accept() 
print 'got connected from',addr 
while 1: 
    msg = ss.recv(20480) 
    print "Get:"+repr(msg)+"\r\n" 
    client.send(msg) 
    #print "Client send data %s to "%repr(msg) 
    buf=client.recv(20480) 
    #print "Client recv data %s from "%repr(buf) 
    ss.send(buf) 
    print "Send:"+repr(buf)+"\r\n"