you don't know about it /usr/lib/system/libsystem_kernel.dylib ex. https://stackoverflow.com/questions/37656016/osx-setgid-system-call-which-api-is-the-correc

you don't know about it /usr/lib/system/libsystem_kernel.dylib ex. https://stackoverflow.com/questions/37656016/osx-setgid-system-call-which-api-is-the-correct-one https://stackoverflow.com/questions/37656016/osx-setgid-syst...