import socket
import time
############################################################
##
## TCP Server Socket - By Fischetti P.
##
############################################################
##
## Serve un solo client.
## Per servire un altro client occorre riavviare
## il programma.
##
############################################################

TCP_PORT = 6000
TCP_IP = '127.0.0.1'
##usare socket.gethostname() in modo che il socket sia visibile
##al mondo esterno.
##Con serversocket.bind(('', TCP_PORT))
##o serversocket.bind(('localhost', TCP_PORT))
##o serversocket.bind(('127.0.0.1', TCP_PORT))
##il socket e' visibile solo all'interno della stessa macchina.
TCP_IP=socket.gethostname()

BUFFER_SIZE = 1024
 
sk = socket.socket(socket.AF_INET, socket.SOCK_STREAM)


sk.bind((TCP_IP, TCP_PORT))
sk.listen(1)

print 'Waiting connection on ',socket.gethostname(),TCP_PORT
conn, addr = sk.accept()
print 'Connection address:', addr
while 1:
     data = conn.recv(BUFFER_SIZE)
     if not data: break
     print "received data:", data
     conn.send(data)  # echo
conn.close()