FreeBSD provides set of utilities for computing SHA-2 hashes (sha256, sha512, etc). I want to find their source code. I don't need source code of the SHA-256 hash function itself, but I am looking for source code of the command-line utility, i.e. part which processes command-line options, input files, etc. I've cloned latest FreeBSD source code from the GitHub-based mirror, and searched for "sha256" over the whole repo, and it gave me a lot of matches, but still I couldn't find that exact one. Please point me, where I can find it, if you know.
