Re: netsec 682578f 4/6: Add option to bypass NSM TLS checks on local networks

[Robert Pluim <rpluim@gmail.com>]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Robert Pluim <rpluim@gmail.com>
>> Cc: emacs-devel@gnu.org
>> Date: Tue, 17 Jul 2018 12:09:10 +0200
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> >
>> > Then I think we should test that it's either a unibyte string or a
>> > string whose size in bytes is equal to its size in characters, and
>> > signal an error if that doesn't hold.
>> 
>> So I tried using STRING_MULTIBYTE, but of course eww uses
>> puny-encode-domain on unicode hostnames, and that returns a multibyte
>> string that only contains ASCII characters. Rather than opening that
>> can of worms, I settled on checking
>> 
>> SBYTES (host) != SCHARS (host)
>
> This will signal an error for unibyte strings, because there SBYTES is
> always -1.  So I think you should do this instead:
>

Ah, I was assuming they'd always be in sync.

>   STRING_MULTIBYTE (host) && SBYTES (host) != SCHARS (host)

OK, that works.

Thanks

Robert