Date: Sat, 11 Aug 2001 01:32:42 +0900 (JST) From: Hajimu UMEMOTO <ume@mahoroba.org> To: roam@ringlet.net Cc: net@FreeBSD.org Subject: Re: getaddrinfo() returning AF_INET only? Message-ID: <20010811.013242.74671505.ume@mahoroba.org> In-Reply-To: <20010810163757.B14158@ringworld.oblivion.bg> References: <20010810163757.B14158@ringworld.oblivion.bg>
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Hi,
>>>>> On Fri, 10 Aug 2001 16:37:57 +0300
>>>>> Peter Pentchev <roam@ringlet.net> said:
roam> Is there a configuration file or environment variable or some other
roam> way to make getaddrinfo(3) not return AF_INET6 addresses even if
roam> those are available? I know that most utilities that use getaddrinfo(3)
roam> have an IPv4-only command-line option, but is there a way to turn it
roam> on globally?
There is no option to do so. But, I believe it shouldn't cause any
problem.
However, current getaddrinfo() doesn't see sortlist at all. It breaks
backward compatibility against gethostbyname(). So, I'm writing a
code to add sortlist facility to getaddrinfo(). Though the patch I
sent to cvs-all touches only IPv4 address, I have the version which
touches IPv6 address as well here. Once the patch is applied, you can
write as following into /etc/resolv.conf:
sortlist 0.0.0.0/0.0.0.0 ::/0
It means I want to see IPv4 address 1st.
There is a discussion at IPng about destination address selection.
This feature may be conflict with it in the future. So, I'm wandering
if committing it into FreeBSD is better? Any suggestion?
--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume@mahoroba.org ume@bisd.hitachi.co.jp ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/
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