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From:	Lee <ler762 AT gmail DOT com>
Date:	Tue, 9 Aug 2022 10:51:08 -0400
Message-ID:	<CAD8GWsuFjBMFYz9+Sf4bxrdec=9jrk6o+5yOJR5cYNsr+YM0FQ@mail.gmail.com>
Subject:	Re: resolv.conf and gnupg2
To:	Christian Franke <Christian DOT Franke AT t-online DOT de>
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On 8/9/22, Christian Franke wrote:
> Brian Inglis wrote:
>> I've been running with /etc/resolv.conf for a few years now, generated
>> from the ISP info from ipconfig and lists of public DNS servers and
>> suffixes.
>>
>> The attached postinstall script 0p_l_etc_resolv_conf.dash generates a
>> new resolv.conf and replaces the current if different every update.
>> It is also run at cron startup and that covers system startup.
>>
>> The AWK script collects names and addresses from ipconfig ouput and
>> adds lists of public DNS servers and public suffixes in the proper order.
>>
>> How this works with other ISPs or in other network environments is not
>> anything I ever thought of testing externally.
>> Feel feel to try it and change it if curious or interested.
>
> This is an interesting approach, thanks for sharing.

Yes, interesting script

> Unfortunately the ipconfig output is always localized, so this does only
> work OOTB with English versions of Windows. The ipconfig parsing is also
> broken due to two reasons:
>
> - The current Cygwin versions of awk, grep and sed no longer convert
> CR/LF -> LF on stdin, so '/FooBar$/' patterns never match.

Which is handled by
  /\r/   { sub( /\r/, "", $NF) }  # trim \r

I get " ca. org. com. net." appended to the search suffix list; that
should be fixed.

Regards,
Lee

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