#!/bin/sh

#   MailScanner - SMTP E-Mail Virus Scanner
#   Copyright (C) 2001  Julian Field
#
#   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 License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#   The author, Julian Field, can be contacted by email at
#      Jules@JulianField.net
#   or by paper mail at
#      Julian Field
#      Dept of Electronics & Computer Science
#      University of Southampton
#      Southampton
#      SO17 1BJ
#      United Kingdom
#

# Wrapper for generic virus scanners written by you!

PackageDir=$1
shift

MyScanner=/bin/false

#
# You get called with an optional "-disinfect" command-line switch, followed
# by a directory name that will normally be ".".
# The directory structure you will be in has a directory for each message
# (named after the message queue id). Each directory contains the files
# which are attachments to the message.
# You have to look for viruses in every file in every directory, and print
# INFECTED::<virus name>::<directory>/<filename>
# for every infected file you find.
# You can also print
# ERROR::<virus name>::<directory>/<filename>
# for any errors you find and these will be put into the logs but the filename
# will not be marked as infected.
#

LANG=C
export LANG

# If you are called with just the "-IsItInstalled" command-line switch, you
# should report if your scanner is installed. If it is installed, it will
# be updated.
if [ "x$1" = "x-IsItInstalled" ]; then
  [ -x ${PackageDir}/$MyScanner ] && exit 0
  exit 1
fi

# Run your scanner here. You can either have it as an external program,
# or just put the code straight in here. The command-line arguments
# (i.e. an optional "-disinfect" followed by a directory name) will be
# passed straight through to your code.
exec ${PackageDir}/$MyScanner "$@"