linux-ext4 - Re: uuidgen question/proposal

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Message-Id: <F0C36833-9DBC-4467-9FC4-C49240E9F804@dilger.ca>
Date:   Tue, 25 Apr 2017 13:06:25 -0600
From:   Andreas Dilger <adilger@...ger.ca>
To:     Alexander Pohoyda <alexander.pohoyda@....net>
Cc:     linux-ext4 <linux-ext4@...r.kernel.org>
Subject: Re: uuidgen question/proposal

On Apr 24, 2017, at 2:03 PM, Alexander Pohoyda <alexander.pohoyda@....net> wrote:
> 
> Hi Andreas,
> 
> one option is IMHO missing in uuidgen(1) tool -- to dump the GUID in binary form (so that it could be easily Base64-encoded)
> 
> It is as simple as this:
> printf("%.16s\n", uuid);
> 
> Base64-encoding of GUIDs is very popular these days and there are a number of online tools to do this, but since uuidgen only dumps a serialized string, this could not be Base64 encoded easily.
> 
> What's your take on this?  Thanks!

I've CC'd your question to linux-ext4@...r.kernel.org, since that is
the mailing list for discussing e2fsprogs changes.

My suggestion would be to add a "-b" (or similar) option directly to uuidgen
so that it can do the base64 encoding itself, rather than dumping the UUID
in binary and having to pipe it to another utility.

Cheers, Andreas






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