remoting_me2me_host: Heap-allocate a 4K buffer.

remoting/host/remoting_me2me_host.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.
 //
 // This file implements a standalone host process for Me2Me.
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 470 matching lines @@
                                   IPC::Channel::MODE_CLIENT,
                                   this,
                                   context_->network_task_runner().get());
   }
 
   if (cmd_line->HasSwitch(kHostConfigSwitchName)) {
     host_config_path_ = cmd_line->GetSwitchValuePath(kHostConfigSwitchName);
 
     // Read config from stdin if necessary.
     if (host_config_path_ == base::FilePath(kStdinConfigPath)) {
-      char buf[4096];
+      const size_t kBufferSize = 4096;
+      scoped_ptr<char[]> buf(new char[kBufferSize]);
       size_t len;
-      while ((len = fread(buf, 1, sizeof(buf), stdin)) > 0) {
-        host_config_.append(buf, len);
+      while ((len = fread(buf.get(), 1, kBufferSize, stdin)) > 0) {
+        host_config_.append(buf.get(), len);
       }
     }
   } else {
     base::FilePath default_config_dir = remoting::GetConfigDir();
     host_config_path_ = default_config_dir.Append(kDefaultHostConfigFile);
   }
 
   if (host_config_path_ != base::FilePath(kStdinConfigPath) &&
       !base::PathExists(host_config_path_)) {
     LOG(ERROR) << "Can't find host config at " << host_config_path_.value();
@@ skipping 1141 matching lines @@
       base::TimeDelta::FromSeconds(kShutdownTimeoutSeconds));
   new HostProcess(context.Pass(), &exit_code, &shutdown_watchdog);
 
   // Run the main (also UI) message loop until the host no longer needs it.
   message_loop.Run();
 
   return exit_code;
 }
 
 }  // namespace remoting