svn commit: r191055 - head/lib/libc/string

[Edward Tomasz Napierala]

On 0414T1115, Tim Kientzle wrote:
> >   There is no way for strmode(3) to append '+' if the file has ACL,
> >   because there is no way to figure that out based on the file mode
> >   itself.  Make the manual page match reality.
> 
> Yep, that '+' is why libarchive has a custom strmode()
> that accepts more information than just the mode.
> 
> A related issue:  It would be really nice to be
> able to find out whether a file had extended ACLs
> or extended attributes based on the information
> returned from stat(2).  That would allow programs
> like tar to avoid a fair number of system calls.
> Even just a single bit "HAS_EXTENSIONS" would help
> a lot, since most files don't have any extended
> ACLs or extended attributes.  It would also allow
> users of strmode() (such as ls) to insert that '+'
> sign themselves.

I know about the idea of adding a bit to the inode flags, but I never
thought about exposing it to the userland in mode_t.  Can we actually
do this without risking confusing some applications that expect only
the standard mode bits to be set?

-- 
If you cut off my head, what would I say?  Me and my head, or me and my body?