PREIN

/bin/sh

/usr/share/rpm-helper/add-user radvd $1 radvd / /usr/sbin/nologin

PREUN

/bin/sh

/usr/share/rpm-helper/del-service radvd $1 radvd

POSTIN

/bin/sh

/usr/bin/systemd-tmpfiles --create radvd.conf 
/usr/share/rpm-helper/add-service radvd $1 radvd