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[3.14] gh-154291: Fix socket.has_dualstack_ipv6() on DragonFly BSD (GH-154292) (GH...
authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Mon, 20 Jul 2026 20:25:57 +0000 (22:25 +0200)
committerGitHub <noreply@github.com>
Mon, 20 Jul 2026 20:25:57 +0000 (20:25 +0000)
commitb2e8bd6ca949204f2af120779d3695b1434094a8
treedeaf0b14892f43f356e52e318c559c64f90cce76tree | snapshot
parent903265fd16af7b11924c0ec16d546d8b5bf6bba6commit | diff
[3.14] gh-154291: Fix socket.has_dualstack_ipv6() on DragonFly BSD (GH-154292) (GH-154300)

On DragonFly BSD setsockopt(IPPROTO_IPV6, IPV6_V6ONLY, 0) succeeds without
actually clearing the flag, so has_dualstack_ipv6() wrongly returned True.
Verify with getsockopt() that IPV6_V6ONLY was cleared.
(cherry picked from commit c7bbf040e721781be8f11a3b0716220835d4de2f)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Lib/socket.py diff | blob | blame | history
Misc/NEWS.d/next/Library/2026-07-20-22-03-44.gh-issue-154291.Mi5HeQ.rst [new file with mode: 0644] blob
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