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Date: Tue, 09 Feb 2010 19:29:37 -0700
From: Eric Blake <ebb9 AT byu DOT net>
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To: cygwin AT cygwin DOT com, Christopher DOT Cobb AT ngc DOT com
Subject: Re: 1.7.1: dash/ash test -x broken?
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According to Cobb, Christopher (Contr) (IS) on 2/9/2010 1:30 PM:
> I recently upgraded to 1.7.1.
>=20
> I have noticed that dash/ash shell scripts which test for the
> executability of files don't work.  For example, the maven build
> application comes with a 'mvn' script which contains this line:
>=20
>    if [ ! -x "$JAVACMD" ] ; then
>       print error message
>    fi

Works for me with all my testing so far:

$ touch f1 f2
$ chmod 000 f1
$ chmod 777 f2
$ bash -c 'test -x f1; echo $?'
1
$ bash -c 'test -x f2; echo $?'
0
$ dash -c 'test -x f1; echo $?'
1
$ dash -c 'test -x f2; echo $?'
0

For me to reproduce your failure, I would need more details.  I'm
wondering if it might be an ACL issue.  What do 'id', 'stat "$JAVACMD"',
and 'getfacl "$JAVACMD"' state about the permissions on that file and the
permissions you are supposed to be able to have?

That said, I haven't yet looked into the source code; if it IS an ACL
issue, then it is a question of dash using stat() instead of access() (or
even better, euidaccess/faccessat).

--=20
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9 AT byu DOT net


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