-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
According to Eric Blake on 1/28/2008 6:28 AM:
| According to Geoff Clare on 1/28/2008 2:57 AM:
| |>
| |> My strict reading of the current wording in draft 4 does not permit
| Linux'
| |> behavior (even though it is more useful, in my opinion), since the
| |> trailing slash on B/ means that the old argument names a directory by
| the
| |> rewritten path resolution rules in XBD 4.12 (line 3008).
| |
| | Right. The behaviour on Solaris and FreeBSD is the one required
| | by the standard. It is also the behaviour on all certified UNIX03 and
| | POSIX01 systems because a test for it is included in the tests for
| | rename() in The Open Group's UNIX03/POSIX01 test suite.
| |
| | (I just checked, and Linux does indeed fail the test, which reports an
| | unexpected ENOTDIR error.)
| |
| | Linux also gives ENOTDIR for rmdir("B/"), instead of removing A and
| | leaving B as a broken link as the standard requires.
|
| However, I find the Linux behavior (for rename at least) much friendlier,
| and would like to see the standard permit that behavior. So it sounds
| like when I write the aardvark, that both behaviors need to be permitted,
| rather than declaring existing behavior of UNIX03/POSIX01 invalid.
I wrote the aardvark along those lines, and it was rejected in yesterday's
meeting of the Austin Group. They argued that Linux is allowed to fail to
follow symlink-to-dir/ in the rename and rmdir case, but only if it
returns a different errno than ENOTDIR.
https://www.opengroup.org/sophocles/show_mail.tpl?CALLER=index.tpl&source=L&listname=austin-group-l&id=11349
I wonder if we would have much luck proposing a patch to the Linux kernel
folks to do just that? Otherwise, I'm afraid that coreutils mv and rmdir
will just have to remain non-POSIX-compliant on Linux because the
underlying syscall is violating semantics.
- --
Don't work too hard, make some time for fun as well!
Eric Blake [EMAIL PROTECTED]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (Cygwin)
Comment: Public key at home.comcast.net/~ericblake/eblake.gpg
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFHvsGO84KuGfSFAYARAssiAKCyga5tFzqIYzaalxox9qgEu1eVAACfQD1w
1fzWlkNiV0YLqdaeU939qKI=
=a1x0
-----END PGP SIGNATURE-----
_______________________________________________
Bug-coreutils mailing list
Bug-coreutils@gnu.org
http://lists.gnu.org/mailman/listinfo/bug-coreutils
