From 34c750d7a96ad29c023d117f55239b94e90d23d5 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Thu, 2 Aug 2012 13:37:02 +0200
Subject: [PATCH] net: fix .listen({fd:0})

---
 lib/net.js                         |  2 +-
 test/simple/test-net-listen-fd0.js | 36 ++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 test/simple/test-net-listen-fd0.js

diff --git a/lib/net.js b/lib/net.js
index b6cbe4f5410..3244a091096 100644
--- a/lib/net.js
+++ b/lib/net.js
@@ -980,7 +980,7 @@ Server.prototype.listen = function() {
     if (h instanceof TCP) {
       self._handle = h;
       listen(self, null, -1, -1, backlog);
-    } else if (h.fd && typeof h.fd === 'number' && h.fd >= 0) {
+    } else if (typeof h.fd === 'number' && h.fd >= 0) {
       listen(self, null, null, null, backlog, h.fd);
     } else {
       throw new Error('Invalid listen argument: ' + h);
diff --git a/test/simple/test-net-listen-fd0.js b/test/simple/test-net-listen-fd0.js
new file mode 100644
index 00000000000..ba0d5984193
--- /dev/null
+++ b/test/simple/test-net-listen-fd0.js
@@ -0,0 +1,36 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var common = require('../common');
+var assert = require('assert');
+var net = require('net');
+
+var gotError = false;
+
+process.on('exit', function() {
+  assert.equal(gotError, true);
+});
+
+// this should fail with an async EINVAL error, not throw an exception
+net.createServer(assert.fail).listen({fd:0}).on('error', function(e) {
+  assert.equal(e.code, 'EINVAL');
+  gotError = true;
+});