We finally got the OK from all contributors with non-trivial commits to
relicense systemd from GPL2+ to LGPL2.1+.
Some udev bits continue to be GPL2+ for now, but we are looking into
relicensing them too, to allow free copy/paste of all code within
systemd.
The bits that used to be MIT continue to be MIT.
The big benefit of the relicensing is that closed source code may now
link against libsystemd-login.so and friends.
This extends the shutdownd interface to expose schedule shutdown
information in /run/systemd/shutdown/schedule.
This also cleans up the shutdownd protocol and documents it in a header
file sd-shutdown.h.
This is supposed to be used by client code that wants to control and
monitor scheduled shutdown.
Lennart Poettering