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I would be much more comfortable with using this if it was written in Go or Rust. Why are we still writing C programs to expose sensitive information when much safer languages exist to handle these?

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Author here. I did aim to write the code carefully, for instance doing bounded reads like `fgets(cmd, CLIENT_BUFSZ, conn)` to prevent overflowing my buffer. Also ran the program in Valgrind and exercised different code paths to detect memory leaks and management errors such as use-after-free or double-freeing. Because libgit2 and its memory conventions were new to me, I did actually make mistakes and Valgrind helped me find them. The fix for those mistakes is in commit 59bb39b if you're curious to check it out.

Writing in C requires care, but the modern day "rewrite it in rust" crusade does feel overblown. C programs are nice -- small and fast.

Anyway, I don't mean to be cocky. A code review is welcome, I'd be curious if I did indeed overlook a security issue.

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