Backport #2182: Resolv::DNS fails with only IPv6 nameservers enabled

• Status: Closed
• Assignee: -

[eikebernhardt (Eike Bernhardt)]

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When trying to resolve something (in my case MX records) while only IPv6 nameservers are specified in /etc/resolv.conf, the call to getresources fails with:

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/resolv.rb:685:in `send': Invalid argument - sendto(2) (Errno::EINVAL)

Adding a IPv4 nameserver to /etc/resolv.conf (in addition to the IPv6 nameservers) enables the query to complete.

System: Mac OS X Snow Leopard
Ruby: ruby 1.8.7 (2008-08-11 patchlevel 72) [universal-darwin10.0]

Attached: Log with Backtrace and sample code which triggers the error

How to repeat: only have IPv6 Nameservers defined in /etc/resolv.conf
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[akr (Akira Tanaka)]

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fixed in 1.8 and 1.9 by r25246.
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[shyouhei (Shyouhei Urabe)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

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This issue was solved with changeset r25873.
Eike, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

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