net: check for close on stream, not parent

'close' event isn't emitted on a TLS connection if it's been written to
(but 'end' and 'finish' events are).

PR-URL: nodejs#25026
Fixes: nodejs#24984
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

lib/net.js

@@ -368,8 +368,8 @@ Socket.prototype._final = function(cb) {
 };
 
 
-function afterShutdown(status, handle) {
-  var self = handle[owner_symbol];
+function afterShutdown(status) {
+  var self = this.handle[owner_symbol];
 
   debug('afterShutdown destroyed=%j', self.destroyed,
         self._readableState);

test/parallel/test-tls-close-event-after-write.js

@@ -0,0 +1,41 @@
+'use strict';
+const common = require('../common');
+
+if (!common.hasCrypto)
+  common.skip('missing crypto');
+
+// Issue #24984
+// 'close' event isn't emitted on a TLS connection if it's been written to
+// (but 'end' and 'finish' events are). Without a fix, this test won't exit.
+
+const tls = require('tls');
+const fixtures = require('../common/fixtures');
+let cconn = null;
+let sconn = null;
+
+function test() {
+  if (cconn && sconn) {
+    cconn.resume();
+    sconn.resume();
+    sconn.end(Buffer.alloc(1024 * 1024));
+    cconn.end();
+  }
+}
+
+const server = tls.createServer({
+  key: fixtures.readKey('agent1-key.pem'),
+  cert: fixtures.readKey('agent1-cert.pem')
+}, function(c) {
+  c.on('close', function() {
+    server.close();
+  });
+  sconn = c;
+  test();
+}).listen(0, common.mustCall(function() {
+  tls.connect(this.address().port, {
+    rejectUnauthorized: false
+  }, common.mustCall(function() {
+    cconn = this;
+    test();
+  }));
+}));