### -*-sh-*-

make_key_line () {
  user=$1
  hosts=""
  zone=""
  while read u hh; do
    case $u in "" | \#*) continue ;; esac
    case $user in $u) ;; *) continue ;; esac
    for h in $hh; do
      case $h in
	zone=*) zone=${h#*=} ;;
	*) hosts=${hosts:+$hosts }$h ;;
      esac
    done
  done <domains.conf
  case ${hosts+t} in t) ;; *) continue ;; esac
  line="environment=\"DYNDNS_HOST=$hosts\""
  line="$line${zone:+,environment=\"DYNDNS_ZONE=$zone\"}"
  line="$line,command=\"bin/update\""
  echo "$line"
}