| #! /usr/local/python |
| |
| # Python implementation of an 'echo' tcp server: echo all data it receives. |
| # |
| # This is the simplest possible server, sevicing a single request only. |
| |
| import sys |
| from socket import * |
| |
| # The standard echo port isn't very useful, it requires root permissions! |
| # ECHO_PORT = 7 |
| ECHO_PORT = 50000 + 7 |
| BUFSIZE = 1024 |
| |
| def main(): |
| if len(sys.argv) > 1: |
| port = int(eval(sys.argv[1])) |
| else: |
| port = ECHO_PORT |
| s = socket(AF_INET, SOCK_STREAM) |
| s.bind('', port) |
| s.listen(0) |
| conn, (host, remoteport) = s.accept() |
| print 'connected by', host, remoteport |
| while 1: |
| data = conn.recv(BUFSIZE) |
| if not data: |
| break |
| conn.send(data) |
| |
| main() |