https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commitdiff;h=5226b712a33948e34862de698ba4580ca8bcfb99

Cheers,

Simon.

On 2/3/25 17:27, wornandrew via Dnsmasq-discuss wrote:
Hi.
I've ran into a misbehaving server which doesn't preserve case in replies.
(e.g. if query is exAMPLE.Com then the response is example.com)
This causes dnsmasq to drop the replies as malicious.

This was not noticeable before 0x20 encoding was implemented in 2.91
as clients only ever sent lowercase queries. But now dnsmasq mangles
the case of all forwarded names with no apparent way to avoid this.

It would be nice to have an option to bypass 0x20 encoding for forwarded 
queries and instead send them as is.

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