From 1513848f8801d7d1141c10c4960b6bfe47a53ed2 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Tue, 17 Jul 2012 15:16:23 +0200
Subject: [PATCH] net: fix Socket({ fd: 42 }) api

Make the implementation match the documentation. This should work:

  var s = new net.Socket({ fd: 42, allowHalfOpen: true };

And now it does.
---
 lib/net.js | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/lib/net.js b/lib/net.js
index b4934e3269c..7fe892f65dc 100644
--- a/lib/net.js
+++ b/lib/net.js
@@ -131,19 +131,25 @@ function Socket(options) {
 
   Stream.call(this);
 
-  if (typeof options == 'number') {
-    // Legacy interface.
-    var fd = options;
-    this._handle = createPipe();
-    this._handle.open(fd);
-    this.readable = this.writable = true;
-    initSocketHandle(this);
-  } else {
-    // private
-    this._handle = options && options.handle;
-    initSocketHandle(this);
-    this.allowHalfOpen = options && options.allowHalfOpen;
+  switch (typeof options) {
+  case 'number':
+    options = { fd: options }; // Legacy interface.
+    break;
+  case 'undefined':
+    options = {};
+    break;
   }
+
+  if (typeof options.fd === 'undefined') {
+    this._handle = options && options.handle; // private
+  } else {
+    this._handle = createPipe();
+    this._handle.open(options.fd);
+    this.readable = this.writable = true;
+  }
+
+  initSocketHandle(this);
+  this.allowHalfOpen = options && options.allowHalfOpen;
 }
 util.inherits(Socket, Stream);