pre_install() {
  /bin/true
}

post_install() {
    chown -R ejabberd.jabber /var/spool/ejabberd
}

pre_upgrade() {
  /bin/true
}

post_upgrade() {
    chown -R ejabberd.jabber /var/spool/ejabberd
}

pre_remove() {
  /bin/true
}

post_remove() {
  /bin/true
}

op=$1
shift
$op $*