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fix(telegram): force IPv4 DNS on Jetson to prevent happy eyeballs timeout #1151

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fix(telegram): force IPv4 DNS on Jetson to prevent happy eyeballs timeout #1151

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17 changes: 17 additions & 0 deletions scripts/telegram-bridge.js
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Expand Up @@ -2,6 +2,23 @@
// SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
// SPDX-License-Identifier: Apache-2.0

// Jetson Tegra kernels have a non-functional IPv6 stack. Node.js v22 happy
// eyeballs (autoSelectFamily) tries IPv6 even when dns.setDefaultResultOrder
// is set to 'ipv4first', causing all outbound HTTPS requests to fail with
// ETIMEDOUT. Force IPv4 at the DNS layer which is the only reliable fix.
// See: https://github.com/nodejs/node/issues/52216
const dns = require("dns");
const fs = require("fs");
if (fs.existsSync("/etc/nv_tegra_release")) {
const _lookup = dns.lookup;
dns.lookup = function (hostname, options, callback) {
if (typeof options === "function") { callback = options; options = {}; }
if (typeof options === "number") options = { family: options };
options = Object.assign({}, options, { family: 4 });
return _lookup.call(dns, hostname, options, callback);
};
}

/**
* Telegram → NemoClaw bridge.
*
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