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POPython client / server question
 

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    <p>I'm working on a bit of a project in python. I have a client and a server. The server listens for connections and once a connection is received it waits for input from the client. The idea is that the client can connect to the server and execute system commands such as ls and cat. This is my server code:</p> <pre><code>import sys, os, socket host = '' port = 50105 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((host, port)) print("Server started on port: ", port) s.listen(5) print("Server listening\n") conn, addr = s.accept() print 'New connection from ', addr while (1): rc = conn.recv(5) pipe = os.popen(rc) rl = pipe.readlines() file = conn.makefile('w', 0) file.writelines(rl[:-1]) file.close() conn.close() </code></pre> <p>And this is my client code:</p> <pre><code>import sys, socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) host = 'localhost' port = input('Port: ') s.connect((host, port)) cmd = raw_input('$ ') s.send(cmd) file = s.makefile('r', 0) sys.stdout.writelines(file.readlines()) </code></pre> <p>When I start the server I get the right output, saying the server is listening. But when I connect with my client and type a command the server exits with this error:</p> <pre><code>Traceback (most recent call last): File "server.py", line 21, in &lt;module&gt; rc = conn.recv(2) File "/usr/lib/python2.6/socket.py", line 165, in _dummy raise error(EBADF, 'Bad file descriptor') socket.error: [Errno 9] Bad file descriptor </code></pre> <p>On the client side, I get the output of ls but the server gets screwed up.</p>
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    1. USAustinM
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    1. COSo what exactly is your question?
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    2. COHow can I make it so the client will stay open for more commands to be inputed. So that the client can keep inputting commands and they're executed on the server.
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    3. COYou seem to be reinventing ssh, why?
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      1. USnosklo
 

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