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'use strict';
const common = require('../common');
const assert = require('assert');
const net = require('net');
function check(addressType, cb) {
const server = net.createServer(function(client) {
client.end();
server.close();
cb && cb();
});
const address = addressType === 4 ? common.localhostIPv4 : '::1';
server.listen(0, address, common.mustCall(function() {
net.connect({
port: this.address().port,
host: 'localhost',
family: addressType,
lookup: lookup
}).on('lookup', common.mustCall(function(err, ip, type) {
assert.strictEqual(err, null);
assert.strictEqual(address, ip);
assert.strictEqual(type, addressType);
}));
}));
function lookup(host, dnsopts, cb) {
dnsopts.family = addressType;
if (addressType === 4) {
process.nextTick(function() {
cb(null, common.localhostIPv4, 4);
});
} else {
process.nextTick(function() {
cb(null, '::1', 6);
});
}
}
}
check(4, function() {
common.hasIPv6 && check(6);
});
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