[3.15] gh-154291: Fix socket.has_dualstack_ipv6() on DragonFly BSD (GH-154292)#154299
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serhiy-storchaka merged 1 commit intoJul 20, 2026
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…thonGH-154292) 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>
This was referenced Jul 20, 2026
serhiy-storchaka
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July 20, 2026 20:01
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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 c7bbf04)
Co-authored-by: Serhiy Storchaka storchaka@gmail.com
Co-authored-by: Claude Opus 4.8 (1M context) noreply@anthropic.com