-# set ms home directory
-MS_HOME=${MS_HOME:-"${HOME}/.config/monkeysphere"}
-
-# load configuration file
-MS_CONF=${MS_CONF:-"${MS_HOME}/monkeysphere.conf"}
-[ -e "$MS_CONF" ] && . "$MS_CONF"
-
-# set empty config variable with defaults
-AUTHORIZED_USER_IDS=${AUTHORIZED_USER_IDS:-"${MS_HOME}/authorized_user_ids"}
-GNUPGHOME=${GNUPGHOME:-"${HOME}/.gnupg"}
-KEYSERVER=${KEYSERVER:-"subkeys.pgp.net"}
-REQUIRED_HOST_KEY_CAPABILITY=${REQUIRED_HOST_KEY_CAPABILITY:-"e a"}
-REQUIRED_USER_KEY_CAPABILITY=${REQUIRED_USER_KEY_CAPABILITY:-"a"}
-USER_CONTROLLED_AUTHORIZED_KEYS=${USER_CONTROLLED_AUTHORIZED_KEYS:-"%h/.ssh/authorized_keys"}
-USER_KNOWN_HOSTS=${USER_KNOWN_HOSTS:-"${HOME}/.ssh/known_hosts"}
-HASH_KNOWN_HOSTS=${HASH_KNOWN_HOSTS:-"true"}
-
-export GNUPGHOME
-
-# stagging locations
-hostKeysCacheDir="${MS_HOME}/host_keys"
-userKeysCacheDir="${MS_HOME}/user_keys"
-msAuthorizedKeys="${MS_HOME}/authorized_keys"
-
-# make sure gpg home exists with proper permissions
-mkdir -p -m 0700 "$GNUPGHOME"
-
-# make sure the user monkeysphere home directory exists
-mkdir -p -m 0700 "$MS_HOME"
-mkdir -p "$hostKeysCacheDir"
-mkdir -p "$userKeysCacheDir"
-touch "$AUTHORIZED_USER_IDS"
+# unset option variables
+unset KEY_LENGTH
+unset KEY_EXPIRE
+
+# get options for key generation and add-certifier functions
+TEMP=$(getopt -o l:e: -l length:,expire: -n "$PGRM" -- "$@")
+
+if [ $? != 0 ] ; then
+ usage
+ exit 1
+fi
+
+# Note the quotes around `$TEMP': they are essential!
+eval set -- "$TEMP"
+
+while true ; do
+ case "$1" in
+ -l|--length)
+ KEY_LENGTH="$2"
+ shift 2
+ ;;
+ -e|--expire)
+ KEY_EXPIRE="$2"
+ shift 2
+ ;;
+ --)
+ shift
+ ;;
+ *)
+ break
+ ;;
+ esac
+done