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net: check and throw on error for getsockname #12871

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net: check and throw on error for getsockname #12871

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4141147
net: check and throw on error for getsockname
danbev May 6, 2017
c321986
add test
danbev May 6, 2017
ecb809c
change regex to avoid plaform specific errors
danbev May 6, 2017
1d1bd12
update regex
danbev May 6, 2017
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6 changes: 4 additions & 2 deletions lib/net.js
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Expand Up @@ -1469,8 +1469,10 @@ Object.defineProperty(Server.prototype, 'listening', {
Server.prototype.address = function() {
if (this._handle && this._handle.getsockname) {
var out = {};
this._handle.getsockname(out);
// TODO(bnoordhuis) Check err and throw?
var err = this._handle.getsockname(out);
if (err) {
throw errnoException(err, 'address');
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maybe

if (err) {
  self.emit('error', errnoException(err, 'address'));
  return;
}

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@refack refack May 6, 2017 •
edited

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@addaleax won't throwing make this semver-major?
Ohh just saw you marked it.

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Yeah, that’s why I’ve labelled it as a major. ;) But emitting an error event a) would be semver-major too and b) doesn’t really make sense here, it’s a fully synchronous call.

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Ok. I agree.

}
return out;
} else if (this._pipeName) {
return this._pipeName;
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17 changes: 17 additions & 0 deletions test/parallel/test-socket-address.js
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@@ -0,0 +1,17 @@
'use strict';
const common = require('../common');
const assert = require('assert');
const net = require('net');

// This tests checks that if server._handle.getsockname
// returns an error number, an error is thrown.

const server = net.createServer({});
server.listen(0, common.mustCall(function() {
server._handle.getsockname = function(out) {
return -1;
};
assert.throws(() => this.address(),
/^Error: address ([\w|\s-\d])+$/);
server.close();
}));