cluster: report more errors to workers

Some errors for listening and binding to a socket were not properly
delivered to workers.

fix #6767

lib/cluster.js

@@ -228,13 +228,18 @@ if (cluster.isMaster) {
 
     if (serverHandlers.hasOwnProperty(key)) {
       handler = serverHandlers[key];
-    } else if (message.addressType === 'udp4' ||
-               message.addressType === 'udp6') {
-      var dgram = require('dgram');
-      handler = dgram._createSocketHandle.apply(net, args);
-      serverHandlers[key] = handler;
     } else {
-      handler = net._createServerHandle.apply(net, args);
+      if (message.addressType === 'udp4' ||
+          message.addressType === 'udp6') {
+        var dgram = require('dgram');
+        handler = dgram._createSocketHandle.apply(net, args);
+      } else {
+        handler = net._createServerHandle.apply(net, args);
+      }
+      if (!handler) {
+        send({ content: { error: process._errno } }, null);
+        return;
+      }
       serverHandlers[key] = handler;
     }
 
@@ -584,7 +589,7 @@ cluster._getServer = function(tcpSelf, address, port, addressType, fd, cb) {
 
   // The callback will be stored until the master has responded
   sendInternalMessage(cluster.worker, message, function(msg, handle) {
-    cb(handle);
+    cb(handle, msg && msg.error);
   });
 
 };

lib/dgram.js

@@ -190,7 +190,10 @@ Socket.prototype.bind = function(/*port, address, callback*/) {
       cluster = require('cluster');
 
     if (cluster.isWorker) {
-      cluster._getServer(self, ip, port, self.type, -1, function(handle) {
+      cluster._getServer(self, ip, port, self.type, -1, function(handle, err) {
+        if (err)
+          return self.emit('error', errnoException(err, 'bind'));
+
         if (!self._handle)
           // handle has been closed in the mean time.
           return handle.close();

lib/net.js

@@ -1062,7 +1062,14 @@ function listen(self, address, port, addressType, backlog, fd) {
     return;
   }
 
-  cluster._getServer(self, address, port, addressType, fd, function(handle) {
+  cluster._getServer(self, address, port, addressType, fd, function(handle,
+                                                                    err) {
+    // EACCESS and friends
+    if (err) {
+      self.emit('error', errnoException(err, 'bind'));
+      return;
+    }
+
     // Some operating systems (notably OS X and Solaris) don't report EADDRINUSE
     // errors right away. libuv mimics that behavior for the sake of platform
     // consistency but that means we have have a socket on our hands that is

test/simple/test-cluster-eaccess.js

@@ -0,0 +1,59 @@
+// 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 cluster = require('cluster');
+var path = require('path');
+var fs = require('fs');
+var net = require('net');
+
+// No win32 support so far
+if (process.platform === 'win32')
+  return;
+
+var socketPath = path.join(common.fixturesDir, 'socket-path');
+
+if (cluster.isMaster) {
+  cluster.fork();
+} else {
+  fs.writeFileSync(socketPath, 'some contents');
+
+  var server = net.createServer().listen(socketPath, function() {
+    console.log('here');
+  });
+
+  var gotError = 0;
+  server.on('error', function(err) {
+    gotError++;
+    assert(/EADDRINUSE/.test(err.message));
+    process.exit();
+  });
+
+  process.on('exit', function() {
+    try {
+      fs.unlinkSync(socketPath);
+    } catch (e) {
+    }
+    assert.equal(gotError, 1);
+  });
+}