Re: RFC: changing the "+" in ls -l output to be "." or "+"

[Eric Blake]

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According to Mike Edenfield on 10/24/2008 7:19 AM:
> Based on the kind of real-world problems I've had, the most useful thing
> ls could tell me about a file on my SELinux system would be that it
> *should* have a label and *doesn't*, something like:
> 
> if ( selinux_enabled )
>   if ( label == NULL || label == fs.defaultlabel )
>     use "!"
>   else
>     use " "

Unfortunately, that would violate POSIX, which requires ' ' in the case
when no alternate access controls are in force.  And SELinux contexts
count as an alternate access control.

"The <optional alternate access method flag> shall be a single <space> if
there is no alternate or additional access control method associated with
the file; otherwise, a printable character shall be used."
http://www.opengroup.org/onlinepubs/009695399/utilities/ls.html

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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