> Am 11.05.2020 um 10:16 schrieb Aki Tuomi <aki.tu...@open-xchange.com>:
>
>
>> On 11/05/2020 11:10 Simone Lazzaris <s.lazza...@interactive.eu> wrote:
>>
>>
>> In data lunedì 11 maggio 2020 10:00:38 CEST, li...@mlserv.org ha scritto:
>>> Hi,
>>>
>>> I struggle with directory hashing. I want something like this:
>>>
>>> /srv/mail/c/cf37a8dff5e360927ba10ab2
>>>
>>> The final folder is simpel, as it is:
>>>
>>> %{sha256;truncate=96:user}
>>>
>>> But how do I get a first level from sha256? Unfortunately, the truncate
>>> option aligns only full 8bit and does not divide into low and high nibbles.
>>> How can I express this for sha256?
>>>
>>> in MD5 this would be %1Mu
>>>
>>> Many thanks in advance
>>>
>>> Christian
>>
>> Maybe as a workaround you can create a directory named /srv/mail/c and make
>> 16
>> symbolic links to it: /srv/mail/c0, /srv/mail/c1, /srv/mail/c2, up to /srv/
>> mail/cf.
>>
>> In that way you can use truncate=8.
>>
>>
>>
>> --
>> Simone Lazzaris
>> QCom SpA
>
> Out of curiosity, but why do you use SHA256? You get probably no extra
> benefit from it. I mean, you are free to do so, but ... why?
The reason for me was that I could bash script a transition from username to
directory:
echo -n "username" | sha256sum | cut -c 1-24
That way I could convert all folders easily. I did not know how to do this with
the M-versions.
>
> Anyways, it would work pretty much the same way, %1{sha256:..} and
> %4{sha256:...}.
Thanks. I will try that out.
Christian
>
> Aki
--
Rößner-Network-Solutions
Karl-Bröger-Str. 10, 36304 Alsfeld
Fax: +49 6631 78823409, Mobil: +49 171 9905345
USt-IdNr.: DE225643613, https://roessner.website
PGP fingerprint: 658D 1342 B762 F484 2DDF 1E88 38A5 4346 D727 94E5
