Disappearing files, created from /etc/X11/Xclients


Hi,

I'm running several diskless boxes. They connect to the same server with xdmpc (gdm). When a user logs in, the WM is started by script /etc/X11/Xclients:

#!/bin/sh
xmodmap /etc/X11/xmodmap.hun
exec /etc/X11/startwm.py

You can find the startwm.py script at the end of this e-mail. Most importantly, I wanted to save client IP addresses and the date of the login into different files. These files are located under /tmp/disklessips/*. Rights for /tmp/diskless is octal 42777:

drwxrwsrwx 2 root users 512 Mar 20 14:41 disklessips

The strange thing is that, if I login with user 'gandalf' who is in 'wheel', the files are created and saved into /tmp/disklessips/gandalf.txt and /tmp/disklessips/gandalf.history.txt. But if I login with any other user (they are in group 'users'), no files are created, but the window manager IS started. The startwm.py program creates these files BEFORE starting gnome, and it does throw an error. So they must have been created, but I do not see them anywhere. They simply disappear. Never existed? Any thoughts?

Thanks,

Laszlo



#!/usr/local/bin/python
import os
import datetime

WM = """exec dbus-launch --exit-with-session gnome-session"""

# Extract client IP
display = os.environ['DISPLAY']
idx = display.find(':')
remotehost = display[:idx]
os.environ['REMOTEHOST'] = remotehost

# Save client IP
ddir = '/tmp/disklessips'
fout = file('%s/%s.txt'%(ddir,os.getlogin()),'wb+')
fout.write(remotehost)
fout.close()
# Save history
fout = file('%s/%s.history.txt'%(ddir,os.getlogin()),'ab+')
fout.write( datetime.datetime.now().isoformat()[:19] + '\t' + remotehost + '\n' )
fout.close()

os.system(WM)

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