middle parameters are not sanitized

[slingamn]

Sorry if this is a duplicate. Testing just now, this is a normal 403 ERR_NOSUCHCHANNEL, with three parameters (nickname, channel name, and human-readable description):

TOPIC #nonexistentchannel
:tungsten.libera.chat 403 slingamn__ #nonexistentchannel :No such channel

But this one has two parameters:

TOPIC ::
:tungsten.libera.chat 403 slingamn__ : :No such channel

and this one has four:

TOPIC :#nonexistent channel
:tungsten.libera.chat 403 slingamn__ #nonexistent channel :No such channel

I've been sending * in this case, which is not necessarily the right answer:

https://github.com/ergochat/ergo/blob/2274ef3fa05c2b99372ecfc28f4ddb06677b5746/irc/utils/args.go#L33-L40

Thanks for your time.

[jesopo]

is there a generalised "malformed data" numeric

[SadieCat]

What InspIRCd does in this case is we just send * in place of the malformed parameter.