您能找到的最小网络协议实现程序

 1 #!/usr/bin/env python
 2 # Simple Gopher Client -  Chapter 1 - gopherclient.py
 3 #《PYTHON网络编程基础》 第35页
 4 
 5 
 6 import socket, sys
 7 
 8 port = 70
 9 host = sys.argv[1]
10 filename = sys.argv[2]
11 
12 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
13 s.connect((host, port))
14 
15 s.sendall(filename + "\r\n")
16 
17 while 1:
18     buf = s.recv(2048)
19     if not len(buf):
20         break
21     sys.stdout.write(buf)

iWelcome to gopher at quux.org!    fake    (NULL)    0
i    fake    (NULL)    0
iThis server has a lot of information of historic interest,    fake    (NULL)    0
ifunny, or just plain entertaining -- all presented in Gopher.    fake    (NULL)    0
iThere are many mirrors here of rare or valuable files with the    fake    (NULL)    0
iaim to preserve them in case their host disappears.  PLEASE READ    fake    (NULL)    0
i"About This Server" FOR IMPORTANT NOTES AND LEGAL INFORMATION.    fake    (NULL)    0
i    fake    (NULL)    0
0About This Server    /About This Server.txt    gopher.quux.org    70    +
1Archives    /Archives    gopher.quux.org    70    +
1Books    /Books    gopher.quux.org    70    +
1Communication    /Communication    gopher.quux.org    70    +
iThis directory contains the entire text of the book    fake    (NULL)    0
i"We the Media: Grassroots Journalism by the People, for the People"    fake    (NULL)    0
iby Dan Gillmor in various formats.    fake    (NULL)    0
i    fake    (NULL)    0
iFeel free to download and enjoy.    fake    (NULL)    0
1Computers    /Computers    gopher.quux.org    70    +
1Current Issues and Events (Updated Apr. 23, 2002)    /Current    gopher.quux.org    70    +
1Development Projects    /devel    gopher.quux.org    70    +
0Gopher‘s 10th Anniversary    /3.0.0.txt    gopher.quux.org    70
1Government, Politics, Law, and Conflict    /Government    gopher.quux.org    70    +
0How To Help    /How To Help.txt    gopher.quux.org    70    +
1Humor and Fun    /Humor and Fun    gopher.quux.org    70    +
1Index to Quux.Org    /Archives/index    gopher.quux.org    70
1Internet    /Internet    gopher.quux.org    70    +
1Other Gopher Servers    /Software/Gopher/servers    gopher.quux.org    70
1People    /People    gopher.quux.org    70    +
1Reference    /Reference    gopher.quux.org    70    +
1Software and Downloads    /Software    gopher.quux.org    70    +
1The Gopher Project    /Software/Gopher    gopher.quux.org    70
0What‘s New    /whatsnew.txt    gopher.quux.org    70    +