[libc-commits] [libc] [libc] implement ioctl (PR #85890)

[Nhat Nguyen via libc-commits]

changkhothuychung wrote:

@nickdesaulniers nick
I am not really familiar with how to write test case for this syscall, do you have any recommnedations which case should I cover for unit test? 

https://github.com/llvm/llvm-project/pull/85890