#!/bin/sh
# 2004-01-25, Thomas Lamy <thomas.lamy@in-online.net>
# From Magnus Ekdahl's <magnus@debian.org> clamav-freshclam-handledaemon(8)

set -e

if [ ! -e /var/lib/clamav/interface ]; then
  exit 0
fi

INIT=/etc/init.d/clamav-freshclam
CLAMAV_CONF_FILE=/etc/clamav/clamav.conf
FRESHCLAM_CONF_FILE=/etc/clamav/freshclam.conf

INTERNETIFACE=`cat /var/lib/clamav/interface`

if grep -q freshclam /proc/*/stat 2>/dev/null; then
  IS_RUNNING=true
else
  IS_RUNNING=false
fi

if [ -n "$PPP_IFACE" ]; then
  IFACE=$PPP_IFACE
fi

if [ -z "$1" ]; then
  case $(dirname "$0") in
    */if-up.d|*/ip-up.d)
    # Short circuit and exit early if freshclam is already running
    if [ "$IS_RUNNING" = 'true' ]; then
      exit 0
    fi
    for interface in $INTERNETIFACE; do
      if [ "$interface" = "$IFACE" ]; then
	FMODE=start
	break
      else
	FMODE=skip
      fi
    done
    ;;
    */if-down.d|*/ip-down.d)
    # Short circuit and exit early if freshclam is not already running
    if [ "$IS_RUNNING" = 'false' ]; then
      exit 0
    fi
    for interface in $INTERNETIFACE; do
      if [ "$interface" = "$IFACE" ]; then
	FMODE=stop
	break
      else
	FMODE=skip
      fi
    done
    ;;
    *)
    FMODE=skip
    ;;
  esac
fi

case "$FMODE" in
  start|stop)
  IFACE="$IFACE" $INIT $FMODE
  ;;
  skip)
  ;;
  *)
  echo "Usage: $0 {start|stop|skip}" >&2
  exit 1
  ;;
esac

exit 0

