[Dnsmasq-discuss] Feature request = block-conf

[Simon Kelley]

Let's try thinking out of the box here. Given the motivation to save 
storage, I was wondering if there could be a way to use compression, 
gzip etc to save more space.

Building a decompressor into dnsmasq seems ugly, but then I came up with 
the option of --conf-script=/path/to/script.

Analogous to --conf-file, except that the standard output of the script 
is used as the configuration.


So you could just have a script which consisted of

#!/bin/sh
set -e

gunzip block-domains.gz | sed -e "s:^:address=/:" -e "s:$:/#:"


The sed stuff might not be necessary: a decent compression algo should 
hide the repeated information pretty successfully itself.


That solves you problem, and is more generally useful: It's also pretty 
trivial to implement.

Opinions, all?


Simon.




On 04/02/2022 09:46, Ercolino de Spiacico wrote:
> I have a feature request.
> 
> Since dnsmasq is extremely popular on embedded devices with limited 
> resources (e.g. router) it would be a huge improvement to have a new 
> directive to block a list of domains.
> 
> Practical example:
> We currently need to add an external file to the main config (preferred) 
> e.g.:
> 
> conf-file=/etc/dnsmasq.adblock
> 
> and define the syntax in a relatively long way
> 
> address=/baddomain.com/#
> address=/baddomain2.com/#
> 
> 
> Suggestion -
> 
> Could we please have a new directive e.g. block-file
> 
> block-conf=/etc/dnsmasq.adblock
> 
> where only domains are needed in the mapped file?
> 
> baddomain.com
> baddomain2.com
> 
> 
> This would reduce drastically the demand on storage (so memory). Some of 
> the public adblock lists are huge hence having the adblock file 
> literally 1/2 of the original size would be amazing.
> 
> Thanks
> 
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