#! /usr/bin/env python

'''
Simple antivirus mail filter for procmail and ClamAV.

If you have procmail set up, put this in your $PATH,
then put the following in your ~/.procmailrc:

---[ recipe starts here
:0f: /var/lock/clamailfilter.lock
| clamailfilter

---[ recipe ends here

clamailfilter is (C) 2004 Janusz A. Urbanowicz <alex@bofh.net.pl>.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public Licens
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                                            
'''

import sys,os

CLAMSCAN = 'clamdscan --quiet -'

input = sys.stdin.read()

stream = os.popen(CLAMSCAN,'w')
try:
  stream.write(input)
except IOError:
  sys.stdout.write(input)
  sys.exit(2)

rc = stream.close()

if rc == None:
  code = 0
else: 
  code = (rc & 65280)/ 256

if code == 0 or code == 2:
  sys.stdout.write(input)
  sys.exit(0)

sys.exit(1)