Re: gzip: unrecognized option `--rsyncable'

[Guillaume F. <gui...@fr...>]

Le 2015/09/26 14:49, Shachar Shemesh a écrit :
> On 26/09/15 15:32, Vladimir Botka wrote:
> 
>> Hello,
>> 
>> I run command [1] in FreeBSD and see gzip error [2]. Would it be
>> possible to help me? Thank you.
>  In the past, --rsyncable wasn't part of vanilla gzip. It is possible
> that FreeBSD doesn't include it. I have no idea if it made it into
> vanilla gzip or not. Almost all Linux distributions include it.

It has never made it upstream.
But Vladimir should be able to rebuild gzip by enabling rsyncable : 
https://www.freshports.org/archivers/gzip/

> 
> Using rsyncrypto without it is rather pointless. There is no point in
> giving up security in order to get rsync friendly cypher texts if the
> compression then goes ahead and makes them non-rsyncable. I also
> wouldn't recommend using rsyncrypto without compression, as it has
> some security assumptions that revolve around high entropy input.
> Using uncompressed files with rsyncrypto is below the security
> threshold I would recommend.
> 
> The only solution I can offer is to compile your own version of gzip,
> with the rsyncable flag.
> 
> Shachar
> 
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