[cs631apue] How to determine the type of a file as Archive state 1, Archive state 2 and Whiteout?

[Jan Schaumann]

gcheng2 <gcheng2 at stevens.edu> wrote:

> For -l option and -F option, there are three file types Archive state 1,  
> Archive state 2
> and Whiteout that I don't find flags to define them.

https://lists.stevens.edu/pipermail/cs631apue/2012-October/000179.html

> I only found on the manual page that BSD system defines Whiteout as
> '#define S_IFWHT 0160000'.   Can I define such a macro to determine the  
> Whiteout?

https://lists.stevens.edu/pipermail/cs631apue/2014-October/000603.html

-Jan