[NaCl SDK] Add UDP and TCP Sockets

native_client_sdk/src/libraries/nacl_io/mount_node.cc

 // Copyright (c) 2012 The Chromium 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 "nacl_io/mount_node.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <poll.h>
 #include <string.h>
@@ skipping 135 matching lines @@
   *out_size = stat_.st_size;
   return 0;
 }
 
 int MountNode::GetType() { return stat_.st_mode & S_IFMT; }
 
 bool MountNode::IsaDir() { return (stat_.st_mode & S_IFDIR) != 0; }
 
 bool MountNode::IsaFile() { return (stat_.st_mode & S_IFREG) != 0; }
 
+bool MountNode::IsaSock() { return (stat_.st_mode & S_IFSOCK) != 0; }
+
 bool MountNode::IsaTTY() { return (stat_.st_mode & S_IFCHR) != 0; }
 
 Error MountNode::AddChild(const std::string& name,
                           const ScopedMountNode& node) {
   return ENOTDIR;
 }
 
 Error MountNode::RemoveChild(const std::string& name) { return ENOTDIR; }
 
 Error MountNode::FindChild(const std::string& name, ScopedMountNode* out_node) {
   out_node->reset(NULL);
   return ENOTDIR;
 }
 
 int MountNode::ChildCount() { return 0; }
 
 void MountNode::Link() { stat_.st_nlink++; }
 
 void MountNode::Unlink() { stat_.st_nlink--; }
 
 }  // namespace nacl_io