error ()
{
    echo $0: error: ${1:-"unknown error"} - aborting.
    exit 1
}

# should be root for some of these commands
if [ ! `whoami` = "root" ]; then
    echo root password required
    exec su -p -c "$0 $*"
    error "root authorisation failed"
fi

# use -email and -name to change
DEBFULLNAME=${DEBFULLNAME:-"Geraint Paul Bevan"}
DEBEMAIL=${DEBEMAIL:-"geraint@users.sourceforge.net"}

# default switches
default_sources="sourceforge"
default_logtext="snapshot from ${default_sources}."