[bug-notifications] [findutils 0004682]: -executable option not working

[Mantis Bug Tracker]

A NOTE has been added to this issue. 
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https://www.opencsw.org/mantis/view.php?id=4682 
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Reported By:                flod
Assigned To:                
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Project:                    findutils
Issue ID:                   4682
Category:                   regular use
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2011-02-01 22:52 CET
Last Modified:              2011-05-26 01:38 CEST
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Summary:                    -executable option not working
Description: 
The "-executable" option is meant to select executable files and searchable
directories.
The option does not work with
4.4.2,REV=2009.06.08
as expected.
I cross-checked the results I hoped for under my Linux installation.

The man page says that the difference between -perm and -executable is
that the latter takes more complex things into account like acls.
So the option would be useful but does not work as expected.



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 (0009081) jay (reporter) - 2011-05-26 01:38
 https://www.opencsw.org/mantis/view.php?id=4682#c9081 
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Yes.   If access(2) says the file is executable, then the -executable test
correctly returns true.   From the find documentation:


       -executable
              Matches files which are executable  and  directories  which 
are
              searchable  (in  a file name resolution sense).  This takes
into
              account access control lists  and  other  permissions 
artefacts
              which  the  -perm  test  ignores.   This  test  makes use of
the
              access(2) system call, and so can be fooled by NFS servers
which
              do UID mapping (or root-squashing), since many systems
implement
              access(2) in the client's kernel and so cannot make use  of 
the
              UID  mapping  information held on the server.  Because this
test
              is based only on the result of the access(2) system call, 
there
              is  no  guarantee  that  a file for which this test succeeds
can
              actually be executed.