FS#4197 - dnsmasq fails to start when using IPv6 address for bogusnxdomain

[openwrt-bot]

fotvoren:

OpenWrt version: 21.02.1 r16325-88151b8303 / LuCI openwrt-21.02 branch git-21.295.67054-13df80d
dnsmasq version: 2.85-8

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When setting an IPv6 address for the bogusnxdomain option in dnsmasq, the server fails to start. IPv6 addresses should be supported. From the [[https://thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html|dnsmasq manpage]]:
-B, --bogus-nxdomain=[/prefix]
Transform replies which contain the specified address or subnet into "No such domain" replies.
IPv4 and IPv6 are supported.

When setting an IPv6 address like this:

config dnsmasq ... list bogusnxdomain '2606:4700:4700::1111' ...

The server will fail to start:

Mon Dec 20 11:33:39 2021 daemon.crit dnsmasq[17019]: error at line 25 of /var/etc/dnsmasq.conf.cfg01411c Mon Dec 20 11:33:39 2021 daemon.crit dnsmasq[17019]: FAILED to start up Mon Dec 20 11:33:39 2021 daemon.info procd: Instance dnsmasq::cfg01411c s in a crash loop 7 crashes, 0 seconds since last crash

Line 25 of /var/etc/dnsmasq.conf.cfg01411c:

bogus-nxdomain=2606:4700:4700::1111

IPv4 addresses work fine.

[openwrt-bot]

dave14305:

IPv6 support was only added as of dnsmasq 2.86. Invalid in 2.85.