d87d6793f0
Add a chroot dir for the _rtadvd user. Drop privs to the user _rtadvd after acquiring our socket. When rc.d/rtadvd starts or reloads, the rtadvd config file is copied into the chroot before starting or reloading rtadvd itself. Create a symlink from /var/run/rtadvd.dump to the chroot Inital idea from OpenBSD patch rtadvd.c r1.36