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socket.makefile & AF_UNIX

Michael Fuhr mfuhr at fuhr.org
Fri Dec 10 18:44:37 EST 2004 
Jamie Saker <w0jrs at firepole.com> writes:

> In the makefile operation on socket (pydoc socket.socket.makefile... using 
> AF_UNIX, allowing you to create a file object to correspond to a socket) I've 
> got an sample program (goal: open up unix file socket object for snort's 
> alert_unixsock output mode to dump to. later, take data written into file 
> object and process) as follows:

If you're trying to create a Unix socket then mknod() isn't what
you need.  You probably want to create a socket and bind() it to
the log file:

filename = 'snort_alert'
s = socket(AF_UNIX, SOCK_DGRAM)
s.bind(filename)

The call to bind() will probably fail if the socket file already
exists, so you might want to unlink it first (or make sure you clean
up by unlinking it whenever you exit).

Whether it's appropriate to call makefile() and use methods like
readline() depends on the format of the data that the other end
will send.  If it's binary then you might need to use s.recv().

-- 
Michael Fuhr
http://www.fuhr.org/~mfuhr/
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