These guys here are doing one hell of a great job. GNU coreutils exploration. How they work, which patterns and idioms are there in the code, they even have diagrams for them!

#gnu #cli

An astonishing one-liner: getaddrinfo() from glibc (which is, surprise-surprise, used not only in C and C++) reads environment variables, so pray that no setenv() calls will happen in your multithreaded program.

#unix #gnu #c