--- /dev/null
+#! /bin/sh
+###
+### User cryptographic operations
+###
+### (c) 2011 Mark Wooding
+###
+
+###----- Licensing notice ---------------------------------------------------
+###
+### This file is part of the distorted.org.uk key management suite.
+###
+### distorted-keys is free software; you can redistribute it and/or modify
+### it under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 2 of the License, or
+### (at your option) any later version.
+###
+### distorted-keys is distributed in the hope that it will be useful,
+### but WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+### GNU General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with distorted-keys; if not, write to the Free Software Foundation,
+### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+set -e
+: ${ETC=@pkgconfdir@}
+: ${KEYS=@pkgstatedir@}
+: ${KEYSLIB=@pkglibdir@}
+export ETC KEYS KEYSLIB
+
+. "$KEYSLIB"/keyfunc.sh
+
+usage="usage: $quis COMMAND [ARGUMENTS ...]"
+prefix=cryptop
+
+## Fake up caller credentials if not called via userv.
+case "${USERV_USER+t}" in
+ t) ;;
+ *) USERV_USER=${LOGNAME-${USER-$(id -un)}} USERV_UID=$(id -u) ;;
+esac
+case "${USERV_GROUP+t}" in
+ t) ;;
+ *) USERV_GROUP=$(id -Gn) USERV_GID=$(id -gn) ;;
+esac
+export USERV_USER USERV_UID USERV_GROUP USERV_GID
+
+## Parse options.
+while getopts "hv" opt; do
+ case "$opt" in
+ h) cmd_help; exit ;;
+ v) version; exit ;;
+ *) usage_err ;;
+ esac
+done
+shift $(( $OPTIND - 1 ))
+
+## Dispatch.
+dispatch "$@"
+
+###----- That's all, folks --------------------------------------------------