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Re: bash 'test -x' gives incorrect results with group permissions?

On Wed, Mar 05, 2003 at 04:10:35PM -0500, Eric Tiffany wrote:
> I encountered a perplexing situation with file permissions.  I am running
> cygwin 1.3.20 and bash 2.05b.0(8).
> I have an executable with the following permissions:
> $ ls -ln  /c/j2sdk1.4.1_01/bin/java
> -rwxrwx---+   1 544      18          24672 Sep 30 03:08
> /c/j2sdk1.4.1_01/bin/java
> And here is my user info:
> $ id
> uid=1006(Eric Tiffany) gid=513(None)
> groups=513(None),544(Administrators),545(Users)
> If I run getfacl, I see the following:
> $ getfacl.exe -a /c/j2sdk1.4.1_01/bin/java
> getfacl.exe -a /c/j2sdk1.4.1_01/bin/java
> # file: /c/j2sdk1.4.1_01/bin/java
> # owner: Administrators
> # group: SYSTEM
> user::rwx
> group::rwx
> group:Users:r-x
> mask:rwx
> other:---
> I can execute the file from the command line.
> However, if I say 'test -x /c/j2sdk1.4.1_01/bin/java' in a script, it
> returns false. This seems wrong just based on the fact that I actually can
> exec the file.  However, it also seems to contradict the permissions set for
> the file, if I am interpreting the results of getfacl correctly.
> Is this a bug?  

or a feature? I know of no POSIX call that can reliably detect that situation.
access() on Cygwin will bend POSIX a little and do it. So, as Igor wrote, this
issue will be fixed but it will be necessary to also patch /bin/test and bash.


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