# arg 1:  the new package version
post_install() {
  usr/sbin/groupadd -g 40 named &>/dev/null
  usr/sbin/useradd -u 40 -g named -d /var/named -s /bin/false named &>/dev/null
  usr/bin/passwd -l named &>/dev/null
  [ -f var/log/named.log ] || : >var/log/named.log
  chown named.named var/log/named.log
  # import older rndc.key if it exist
  if [ -f etc/rndc.key ]; then

    cat etc/rndc.key >>var/named/etc/bind/rndc.key
  fi
  # create a new key in case rndc.key is empty
  if [ ! -s var/named/etc/bind/rndc.key ]; then
    usr/sbin/rndc-confgen -b 356 | head -n 5 >>var/named/etc/bind/rndc.key
  fi
}

# arg 1:  the new package version
# arg 2:  the old package version
post_upgrade() {
  post_install $1
  # fix an issue with ownership of /var/run in previous versions
  chown root.root var/run
}

# arg 1:  the old package version
pre_remove() {
  if [ -f var/run/named/named.pid ] || [ -f var/named/var/run/named/named.pid ]; then
      echo "Bind DNS is running, terminating the daemon"
      /etc/rc.d/named stop &>/dev/null
      sleep 1
  fi  
  rm -rf /var/named/{dev,var}
  usr/sbin/userdel named &>/dev/null
  usr/sbin/groupdel named &>/dev/null
}

op=$1
shift

$op $*