bug#58472: [PATCH] Make `message-unique-id' less prone to collisions

[Stefan Kangas]

Stefan Kangas <stefankangas@gmail.com> writes:

> BTW, we currently call getrandom with flags 0 in
> extract_data_from_object.  Should we consider using GRND_RANDOM?

linux.git/include/uapi/linux/random.h says that:

/*
 * Flags for getrandom(2)
 *
 * GRND_NONBLOCK        Don't block and return EAGAIN instead
 * GRND_RANDOM          No effect
 * GRND_INSECURE        Return non-cryptographic random bytes
 */

But the story is probably not the same on other systems, according to
the glibc documentation, so we should probably not change this.