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revert: remove TypeScript changes, keep only Zig fix

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The fix should only be in the native DNS code path (dns.zig).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Claude Bot
2026-01-12 21:06:34 +00:00
parent 7bfb1cce9e
commit 2f29fe7c42
1 changed files with 1 additions and 30 deletions
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31
src/js/node/_http_client.ts
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@@ -497,36 +497,7 @@ function ClientRequest(input, options, cb) {
return;
}
// Sort addresses: prefer global IPv6, then IPv4, then link-local IPv6.
// Link-local IPv6 (fe80::/10) addresses cannot route to global destinations,
// so we deprioritize them to avoid connection timeouts on VPN networks.
// See: https://github.com/oven-sh/bun/issues/25619
const isLinkLocalIPv6 = (addr: string) => {
// fe80::/10 covers fe80:: through febf:: (first 10 bits are 1111111010)
// Check if address starts with fe8, fe9, fea, or feb (case-insensitive)
if (addr.length < 4) return false;
const c0 = addr.charCodeAt(0) | 0x20; // lowercase
const c1 = addr.charCodeAt(1) | 0x20;
const c2 = addr.charCodeAt(2) | 0x20;
const c3 = addr.charCodeAt(3);
// Check for 'fe[89ab]:'
return (
c0 === 0x66 &&
c1 === 0x65 && // 'fe'
(c2 === 0x38 || c2 === 0x39 || c2 === 0x61 || c2 === 0x62) && // '8', '9', 'a', 'b'
((c3 >= 0x30 && c3 <= 0x39) || ((c3 | 0x20) >= 0x61 && (c3 | 0x20) <= 0x66)) && // hex digit
addr.charCodeAt(4) === 0x3a
); // ':'
};
let candidates = results.sort((a, b) => {
const aIsLinkLocal = a.family === 6 && isLinkLocalIPv6(a.address);
const bIsLinkLocal = b.family === 6 && isLinkLocalIPv6(b.address);
// Link-local addresses should come last
if (aIsLinkLocal && !bIsLinkLocal) return 1;
if (!aIsLinkLocal && bIsLinkLocal) return -1;
// Among non-link-local addresses, prefer IPv6 over IPv4
return b.family - a.family;
});
let candidates = results.sort((a, b) => b.family - a.family); // prefer IPv6
const fail = (message, name, code, syscall) => {
const error = new Error(message);