[bug #14748] find -perm /zzz gives wrong result when zzz evaluates to an all-zero mask

[James Youngman]

URL:
  <http://savannah.gnu.org/bugs/?func=detailitem&item_id=14748>

                 Summary: find -perm /zzz gives wrong result when zzz
evaluates to an all-zero mask
                 Project: findutils
            Submitted by: jay
            Submitted on: Sat 10/08/05 at 06:25
                Category: find
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: jay
         Originator Name: Eric Blake
        Originator Email: ericb
             Open/Closed: Open
                 Release: 4.2.25
           Fixed Release: None

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Details:

This bug report has been split out from part of a discussion of an earlier
problem.  In a discussion about bug #14619, Eric Blake writes:-

I have, however, found a bug in 4.2.25:

$ touch 000 100 111 777
$ for f in * ; do touch $f $f ; done
$ find . -perm --x
.
./000
./100
./111
./777
$ find . -perm +-x
./000
$ find . -perm /-x
$

The first two are correct. --x means use mode "-x", which maps to the
template 0000, and find all files that have all set bits in the template set
on the file (no bits meet this criteria), without regard to the state of any
bit cleared in the template (ie, every file should match). +-x means use mode
"+-x", which maps to the template 0000, and do an exact match (only ./000 has
all permissions cleared).

However, /-x means use mode "-x", and find all files that have any set bit in
the template set on the file (no bits meet this criteria), without regard to
the state of any bit cleared in the template (ie, every file should match).
So the bug is that /-x should behave like --x, but did not.






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