600632 – sys-libs/glibc: Please add a patch reverting 8479f23aa1d5e to fix IPv6 link-scope address getaddrinfo()

Bug 600632 - sys-libs/glibc: Please add a patch reverting 8479f23aa1d5e to fix IPv6 link-scope address getaddrinfo()

Summary: sys-libs/glibc: Please add a patch reverting 8479f23aa1d5e to fix IPv6 link-s...

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	Current packages (show other bugs)
Hardware:	All Linux

Importance:	Normal normal
Assignee:	Gentoo Toolchain Maintainers

URL:	https://sourceware.org/bugzilla/show_...
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Keywords:

Depends on:
Blocks:	glibc-2.25
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Reported:	2016-11-23 22:38 UTC by Michał Górny
Modified:	2023-03-22 03:16 UTC (History)
CC List:	2 users (show)

See Also:	https://sourceware.org/bugzilla/show_bug.cgi?id=16826
Package list:
Runtime testing required:	---

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Description Michał Górny archtester

2016-11-23 22:38:46 UTC

Long story short, the fix to spurious DNS queries [1] causes breakage for link-local address lookup [2]. While the correct solution would be to extend NSS to support getaddrinfo-like interface, I don't think it'll happen in a reasonable time.

Therefore, it may be a better idea to revert the fix to [1] in Gentoo patchset. This will cause a regression resulting in AF_INET/AF_INET6 getaddrinfo() lookups getting all A/AAAA addresses but that's a minor problem compared to returning AAAA link-local addresses without scope identifier (esp. considering they'll usually end up in the same packet).

[1]:https://sourceware.org/bugzilla/show_bug.cgi?id=14505
[2]:https://sourceware.org/bugzilla/show_bug.cgi?id=16826

Comment 1 Andreas K. Hüttel archtester

2017-08-29 21:01:37 UTC

Revert pushed in our 2.25 and 2.26 vendor branch

Comment 2 Andreas K. Hüttel archtester

2017-09-12 16:28:04 UTC

The patch is in 2.25-r5