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nodejs/test/parallel/test-dgram-ipv6only.js
Ouyang Yadong 33a25b29a4 net,dgram: add ipv6Only option for net and dgram
For TCP servers, the dual-stack support is enable by default, i.e.
binding host "::" will also make "0.0.0.0" bound. This commit add
ipv6Only option in `net.Server.listen()` and `dgram.createSocket()`
methods which allows to disable dual-stack support. Support for
cluster module is also provided in this commit.

Fixes: https://github.com/nodejs/node/issues/17664

PR-URL: https://github.com/nodejs/node/pull/23798
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
2018-11-22 21:45:08 +08:00

34 lines
706 B
JavaScript

'use strict';
const common = require('../common');
if (!common.hasIPv6)
common.skip('no IPv6 support');
const dgram = require('dgram');
// This test ensures that dual-stack support is disabled when
// we specify the `ipv6Only` option in `dgram.createSocket()`.
const socket = dgram.createSocket({
type: 'udp6',
ipv6Only: true,
});
socket.bind({
port: 0,
address: '::',
}, common.mustCall(() => {
const { port } = socket.address();
const client = dgram.createSocket('udp4');
// We can still bind to '0.0.0.0'.
client.bind({
port,
address: '0.0.0.0',
}, common.mustCall(() => {
client.close();
socket.close();
}));
client.on('error', common.mustNotCall());
}));