Fix GH-746 process.stdin.destroy() breaks http server

lib/net.js

@@ -877,7 +877,7 @@ function Server(/* [ options, ] listener */) {
       self.watcher.stop();
     }
 
-    while (self.fd) {
+    while (typeof self.fd === 'number') {
       try {
         var peerInfo = accept(self.fd);
       } catch (e) {
@@ -1098,7 +1098,7 @@ Server.prototype.address = function() {
 
 Server.prototype.close = function() {
   var self = this;
-  if (!self.fd) throw new Error('Not running');
+  if (typeof self.fd !== 'number') throw new Error('Not running');
 
   self.watcher.stop();
 

test/simple/test-net-server-on-fd-0.js

@@ -0,0 +1,27 @@
+var common = require('../common');
+var assert = require('assert');
+var net = require('net');
+
+process.stdin.destroy();
+
+var accepted = null;
+var server = net.createServer(function(socket) {
+  console.log('accepted');
+  accepted = socket;
+  socket.end();
+  server.close();
+});
+
+
+server.listen(common.PORT, function() {
+  console.log('listening...');
+  assert.equal(server.fd, 0);
+
+  net.createConnection(common.PORT);
+});
+
+
+process.on('exit', function() {
+  assert.ok(accepted);
+});
+