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[Bug network/9981] getaddrinfo(NULL) with AI_PASSIVE returns 0.0.0.0 (IPv4-only) and :: (IPv6+IPv4) in this order
- From: "psimerda at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Sat, 31 May 2014 17:56:40 +0000
- Subject: [Bug network/9981] getaddrinfo(NULL) with AI_PASSIVE returns 0.0.0.0 (IPv4-only) and :: (IPv6+IPv4) in this order
- Auto-submitted: auto-generated
- References: <bug-9981-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=9981
--- Comment #10 from Pavel Åimerda <psimerda at redhat dot com> ---
(In reply to Simon Arlott from comment #9)
> It's not safe because the global sysctl net.ipv6.bindv6only could be set to
> 1 at any time, or the application could use IPV6_V6ONLY=1 on the socket
> (expecting to receive an IPv4 address too).
Do you see a better way?
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