[wyldfire]

I designed something similar for general fault injection [1] (and to learn rust). There's no intercept written for time syscalls yet, but it's on the issues list.

[1] https://github.com/androm3da/libfaultinj

[jwilk]

How does it compare to libfiu?

https://blitiri.com.ar/p/libfiu/

[wyldfire]

It's nowhere near as feature complete or well-documented. :(

Oh well, it's an interesting undertaking anyways.

It looks to me like libfiu has a pretty clever way of generating the libc wrappers from a config file.