Re: S_ARCH1 / S_ARCH2 / strmode(3)

[Brad Spencer <brad%anduin.eldar.org@localhost>]

Jan Schaumann <jschauma%netmeister.org@localhost> writes:

> Hello,
>
> Our ls(1) still supports (via strmode(3)) and
> documents files of types
>
> #define _S_ARCH1  0200000               /* Archive state 1, ls -l shows 'a' */
> #define _S_ARCH2  0400000               /* Archive state 2, ls -l shows 'A' */
>
> In over 25 years of using Unix systems day in, day
> out, I have never encountered a file with an archive
> state set.
>
> OpenBSD, FreeBSD, macOS, and Linux don't seem to
> support this file type.
>
> Grepping through the entire NetBSD source tree, I only
> see S_ARCH1 and S_ARCH1 defined and used in sys/stat.h
> and strmode.c -- that is, I can't find anything
> anywhere actually setting this flag.
>
> (They were added in sys/sys/stat.h, r1.38,
> lib/libc/string/strmode.c r1.9. back in 1999.)
>
> Is this actually useful, or is this a remnant from who
> knows when that nowadays could be removed?
>
> -Jan


There is the concept of archive with the flags that a FFS file can have.
See 'man chflags' for details.  However, I am not sure that this use of
archive is what you have found.



-- 
Brad Spencer - brad%anduin.eldar.org@localhost