From: Ken Brown <kbrown@cornell.edu>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: Eric Blake <eblake@redhat.com>, emacs-devel <emacs-devel@gnu.org>
Subject: Re: Gnulib ACL wrappers
Date: Thu, 28 Aug 2014 15:37:01 -0400 [thread overview]
Message-ID: <53FF84DD.7070503@cornell.edu> (raw)
In-Reply-To: <53FF75DD.30105@cs.ucla.edu>
On 8/28/2014 2:33 PM, Paul Eggert wrote:
> Ken Brown wrote:
>> Or am I misunderstanding something?
>
> Sorry, I don't know; again, I don't use Cygwin and so can be only of
> limited help debugging it. For what it's worth, on Solaris 11 an Emacs
> trunk configure says this:
>
> checking sys/acl.h usability... yes
> checking sys/acl.h presence... yes
> checking for sys/acl.h... yes
> checking for library containing acl_get_file... no
> checking for facl... yes
> checking for library containing acl_trivial... -lsec
> checking for acl_trivial... yes
>
> and 'truss' says that (copy-file "/etc/passwd" "~/passwd" nil nil nil t)
> executed the following system calls:
>
> facl(9, ACE_GETACLCNT, 0, 0x00000000) = 3
> facl(9, ACE_GETACL, 3, 0x087BA410) = 3
> facl(9, GETACLCNT, 0, 0x00000000) Err#89 ENOSYS
> facl(10, ACE_SETACL, 3, 0x087BA410) = 0
> fchmod(10, 0644) = 0
>
> which seems to indicate that the ACL stuff is working on Solaris, at
> least to some extent. Perhaps you can look at the corresponding output
> on Cygwin and see where things are going wrong there.
I'm seeing something similar on Cygwin (except that Cygwin doesn't have
acl_trivial), so I guess this is working as designed. I was thrown off
by the fact that so much of the ACL code in fileio.c is conditioned on
HAVE_ACL_SET_FILE. So I guess the functions that require this won't
work on Solaris either.
Sorry for the noise, and thanks for your help.
Ken
prev parent reply other threads:[~2014-08-28 19:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-27 17:15 Gnulib ACL wrappers Ken Brown
2014-08-27 17:32 ` Paul Eggert
2014-08-28 17:51 ` Ken Brown
2014-08-28 18:33 ` Paul Eggert
2014-08-28 19:37 ` Ken Brown [this message]
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