PREIN

/bin/sh

getent group toranon >/dev/null || groupadd -r toranon
getent passwd toranon >/dev/null || \
    useradd -r -s /sbin/nologin -d /var/lib/tor -M \
    -c 'TOR anonymizing user' -g toranon toranon
exit 0

PREUN

/bin/sh

if [ $1 -eq 0 ] ; then 
        # Package removal, not upgrade 
        /usr/bin/systemctl --no-reload disable tor.service > /dev/null 2>&1 || : 
        /usr/bin/systemctl stop tor.service > /dev/null 2>&1 || : 
fi

POSTIN

/bin/sh

if [ $1 -eq 1 ] ; then 
        # Initial installation 
        /usr/bin/systemctl preset tor.service >/dev/null 2>&1 || : 
fi

POSTUN

/bin/sh

/usr/bin/systemctl daemon-reload >/dev/null 2>&1 || : 
if [ $1 -ge 1 ] ; then 
        # Package upgrade, not uninstall 
        /usr/bin/systemctl try-restart tor.service >/dev/null 2>&1 || : 
fi