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89 lines
3.2 KiB
89 lines
3.2 KiB
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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const common = require('../common');
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if (!common.hasIPv6)
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common.skip('no IPv6 support');
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const assert = require('assert');
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const net = require('net');
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const hosts = common.localIPv6Hosts;
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let hostIdx = 0;
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let host = hosts[hostIdx];
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let localhostTries = 10;
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const server = net.createServer({ allowHalfOpen: true }, function(socket) {
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socket.resume();
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socket.on('end', common.mustCall());
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socket.end();
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});
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server.listen(0, '::1', tryConnect);
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function tryConnect() {
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const client = net.connect({
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host: host,
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port: server.address().port,
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family: 6,
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allowHalfOpen: true
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}, function() {
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console.error('client connect cb');
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client.resume();
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client.on('end', common.mustCall(function() {
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setTimeout(function() {
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assert(client.writable);
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client.end();
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}, 10);
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}));
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client.on('close', function() {
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server.close();
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});
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}).on('error', function(err) {
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// ENOTFOUND means we don't have the requested address. In this
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// case we try the next one in the list and if we run out of
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// candidates we assume IPv6 is not supported on the
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// machine and skip the test.
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// EAI_AGAIN means we tried to remotely resolve the address and
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// timed out or hit some intermittent connectivity issue with the
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// dns server. Although we are looking for local loopback addresses
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// we may go remote since the list we search includes addresses that
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// cover more than is available on any one distribution. The
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// net is that if we get an EAI_AGAIN we were looking for an
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// address which does not exist in this distribution so the error
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// is not significant and we should just move on and try the
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// next address in the list.
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if ((err.syscall === 'getaddrinfo') && ((err.code === 'ENOTFOUND') ||
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(err.code === 'EAI_AGAIN'))) {
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if (host !== 'localhost' || --localhostTries === 0)
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host = hosts[++hostIdx];
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if (host)
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tryConnect();
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else {
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server.close();
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common.skip('no IPv6 localhost support');
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}
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return;
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}
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throw err;
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});
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}
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