Re: extended attributes wiredness

[David Arendt <admin@prnet.org>]

Hi,

I have made some more tests:

./testxattr /u00/root.20121121.210102.full/var/lib/nfs/sm
processing file /u00/root.20121121.210102.full/var/lib/nfs/sm
processing attribute system.posix_acl_default
lgetxattr failed: No data available

getfattr /u00/root.20121121.210102.full/var/lib/nfs/sm
(no result)

setfattr -x system.posix_acl_default
/u00/root.20121121.210102.full/var/lib/nfs/sm

testxattr /u00/root.20121121.210102.full/var/lib/nfs/sm
processing file /u00/root.20121121.210102.full/var/lib/nfs/sm
processing attribute system.posix_acl_access

setfattr -x system.posix_acl_access
/u00/root.20121121.210102.full/var/lib/nfs/sm

./testxattr /u00/root.20121121.210102.full/var/lib/nfs/sm
processing file /u00/root.20121121.210102.full/var/lib/nfs/sm

Now a test with a manually set attribute:

setfattr -n user.testattribute -v testvalue
/u00/root.20121121.210102.full/var/lib/nfs/sm

getfattr /u00/root.20121121.210102.full/var/lib/nfs/sm
getfattr: Removing leading '/' from absolute path names
# file: u00/root.20121121.210102.full/var/lib/nfs/sm
user.testattribute

./testxattr /u00/root.20121121.210102.full/var/lib/nfs/smprocessing file
/u00/root.20121121.210102.full/var/lib/nfs/sm
processing attribute user.testattribute
value testvalue

Thanks in advance,
David Arendt

On 11/24/12 04:39, Liu Bo wrote:
> On Fri, Nov 23, 2012 at 10:09:16PM +0100, David Arendt wrote:
>> Well, this is only code to demonstrate the problem, the ; is normally a
>> silly mistake, but for my test case valuelen is < 0 so, the ; doesn't
>> change anything. With this corrected, the problem stays the same.
>>
>> On 11/23/12 21:43, Garry T. Williams wrote:
>>> On Friday, November 23, 2012 18:45:04 David Arendt wrote:
>>>>   for (i = 0; i < attrslen; i+= strlen(&attrs[i]) + 1)
>>>>   {
>>>>     printf("processing attribute %s\n", &attrs[i]);
>>>>
>>>>     valuelen = lgetxattr(argv[1], &attrs[i], value, 1024);
>>>>
>>>>     if (valuelen < 0);
>>>   Hmmm ----------------^
> Hi David,
>
> Any dmesg output for this?
>
> thanks,
> liubo
>
>>>
>>>
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