A system call for random numbers: getrandom()

I'm not sure that /dev/random has "better" or more "real" random numbers than /dev/urandom, when /dev/urandom is fully seeded and initialized it is as good as anything out there. Maybe the only real use case for /dev/random is seeding your own PRNG in userspace, if you are just consuming randomness for cryptographic purposes then /dev/urandom is what you want.