changes in memory mount and socket subsystem to port thttpd

libraries/nacl-mounts/memory/MemNode.cc

 /*
  * Copyright (c) 2011 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "MemNode.h"
 #include <assert.h>
 #include <errno.h>
+#include <nacl-mounts/util/DebugPrint.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 MemNode::MemNode() {
   data_ = NULL;
   len_ = 0;
   capacity_ = 0;
   use_count_ = 0;
 }
 
 MemNode::~MemNode() {
   children_.clear();
 }
 
 int MemNode::stat(struct stat *buf) {
+  if (!buf) return 0;
   memset(buf, 0, sizeof(struct stat));
   buf->st_ino = (ino_t)slot_;
   if (is_dir()) {
     buf->st_mode = S_IFDIR | 0777;
   } else {
-    buf->st_mode = S_IFREG | 0777;
+    buf->st_mode = S_IFREG | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH
+                 | S_IWOTH;
     buf->st_size = len_;
   }
   buf->st_uid = 1001;
   buf->st_gid = 1002;
   buf->st_blksize = 1024;
   return 0;
 }
 
 void MemNode::AddChild(int child) {
   if (!is_dir()) {
@@ skipping 17 matching lines @@
   set_capacity(len);
 }
 
 std::list<int> *MemNode::children() {
   if (is_dir()) {
     return &children_;
   } else {
     return NULL;
   }
 }