infodir=/usr/share/info

post_install() {
  install-info $infodir/netcat.info.gz $infodir/dir 2> /dev/null
}

post_upgrade() {
  post_install $1
}

pre_remove() {
  install-info --delete $infodir/netcat.info.gz $infodir/dir 2> /dev/null
}