Function resolveTunnelIPv6

ios-qa/daemon/src/devicectl.ts:219–241

(opts: {
  udid: string;
  deviceName: string;
  spawn?: SpawnImpl;
  resolve?: ResolveImpl;
  legacyResolve?: ResolveImpl;
})

 * Returns the first address that any strategy yields, or null.
 */
export async function resolveTunnelIPv6(opts: {
  udid: string;
  deviceName: string;
  spawn?: SpawnImpl;
  resolve?: ResolveImpl;
  legacyResolve?: ResolveImpl;
}): Promise<string | null> {
  const spawn = opts.spawn ?? defaultSpawn;
  const resolveLookup = opts.resolve ?? defaultResolve;
  const resolveLegacy = opts.legacyResolve ?? legacyResolve6;

  // 1. devicectl-based
  const fromDevicectl = getDeviceTunnelIPv6FromDevicectl(opts.udid, spawn);
  if (fromDevicectl) return fromDevicectl;

  // 2. mDNS via dns.lookup
  const fromLookup = await getDeviceTunnelIPv6(opts.deviceName, resolveLookup);
  if (fromLookup) return fromLookup;

  // 3. last-resort: legacy dns.resolve6
  const fromLegacy = await getDeviceTunnelIPv6(opts.deviceName, resolveLegacy);
  return fromLegacy;
}

/**
 * Check whether a specific bundle ID has a running process on the device.