Fuzzing of dart:io Directory API.

runtime/bin/directory.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/directory.h"
 
 #include "bin/dartutils.h"
 #include "bin/thread.h"
 #include "include/dart_api.h"
 #include "platform/assert.h"
@@ skipping 169 matching lines @@
     CObjectArray* response = new CObjectArray(CObject::NewArray(2));
     response->SetAt(
         0, new CObjectInt32(CObject::NewInt32(DirectoryListing::kListDone)));
     response->SetAt(1, CObject::Bool(completed));
     return response;
   }
   // Respond with an illegal argument list error message.
   CObjectArray* response = new CObjectArray(CObject::NewArray(3));
   response->SetAt(0, new CObjectInt32(
       CObject::NewInt32(DirectoryListing::kListError)));
-  response->SetAt(1, request[1]);
+  response->SetAt(1, CObject::Null());
   response->SetAt(2, CObject::IllegalArgumentError());
   Dart_PostCObject(response_port, response->AsApiCObject());
 
   response = new CObjectArray(CObject::NewArray(2));
   response->SetAt(
       0, new CObjectInt32(CObject::NewInt32(DirectoryListing::kListDone)));
   response->SetAt(1, CObject::False());
   return response;
 }
 
@@ skipping 115 matching lines @@
 bool DirectoryListing::HandleError(const char* dir_name) {
   // TODO(sgjesse): Pass flags to indicate whether error
   // responses are needed.
   CObject* err = CObject::NewOSError();
   CObjectArray* response = new CObjectArray(CObject::NewArray(3));
   response->SetAt(0, new CObjectInt32(CObject::NewInt32(kListError)));
   response->SetAt(1, new CObjectString(CObject::NewString(dir_name)));
   response->SetAt(2, err);
   return Dart_PostCObject(response_port_, response->AsApiCObject());
 }