What's wrong with this piece of code from source3/modules/vfs_acl_xattr.c around like 126 or so?

Jeremy Allison jra at samba.org
Tue May 15 09:53:10 MDT 2012


On Tue, May 15, 2012 at 07:00:07AM -0700, Richard Sharpe wrote:
> 
> These are the changes I am thinking of. They are building now and if
> they build cleanly, I will commit them later today (after further
> tests at work.)
> 
> diff --git a/source3/modules/vfs_acl_common.c b/source3/modules/vfs_acl_common.c
> index 241bc8f..221b43f 100644
> --- a/source3/modules/vfs_acl_common.c
> +++ b/source3/modules/vfs_acl_common.c
> @@ -592,10 +592,13 @@ static NTSTATUS fset_nt_acl_common(vfs_handle_struct *hand
>                 NDR_PRINT_DEBUG(security_descriptor,
>                         discard_const_p(struct security_descriptor, psd));
>         }
> +       /*
> +        * Perhaps create_acl_blob should have a status return as well
> +        */
>         create_acl_blob(psd, &blob, XATTR_SD_HASH_TYPE_SHA256, hash);
> -       store_acl_blob_fsp(handle, fsp, &blob);
> +       status = store_acl_blob_fsp(handle, fsp, &blob);
> 
> -       return NT_STATUS_OK;
> +       return status;
>  }
> 
>  static int acl_common_remove_object(vfs_handle_struct *handle,
> diff --git a/source3/modules/vfs_acl_xattr.c b/source3/modules/vfs_acl_xattr.c
> index 5653657..17d1a8f 100644
> --- a/source3/modules/vfs_acl_xattr.c
> +++ b/source3/modules/vfs_acl_xattr.c
> @@ -119,12 +119,11 @@ static NTSTATUS store_acl_blob_fsp(vfs_handle_struct *hand
>         }
>         unbecome_root();
>         if (ret) {
> -               errno = saved_errno;
>                 DEBUG(5, ("store_acl_blob_fsp: setting attr failed for file %s"
>                         "with error %s\n",
>                         fsp_str_dbg(fsp),
> -                       strerror(errno) ));
> -               return map_nt_error_from_unix(errno);
> +                       strerror(saved_errno) ));
> +               return map_nt_error_from_unix(saved_errno);
>         }
>         return NT_STATUS_OK;
>  }

Please add a line to set errno from saved_errno just
before you do the:

return map_nt_error_from_unix(saved_errno);

call. Remember, it's important for VFS modules to
set errno correctly (which is why I often use that
code structure - usually without the DEBUG error
of course :-).

Jeremy.


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