Cross-platform equivalent of fopen, _wfopen_s etc....

chrome/tools/test/image_diff/image_diff.cc

 // Copyright (c) 2006-2008 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 input format is based loosely on
 // WebKitTools/DumpRenderTree/ImageDiff.m
 
 // The exact format of this tool's output to stdout is important, to match
 // what the run-webkit-tests script expects.
 
 #include <algorithm>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
+#include "base/file_util.h"
 #include "base/gfx/png_decoder.h"
 #include "base/logging.h"
 #include "base/process_util.h"
 #include "base/scoped_ptr.h"
 
 // Causes the app to remain open, waiting for pairs of filenames on stdin.
 // The caller is then responsible for terminating this app.
 static const wchar_t kOptionPollStdin[] = L"use-stdin";
 
 // Return codes used by this utility.
@@ skipping 32 matching lines @@
                           &data_, &w_, &h_)) {
       Clear();
       return false;
     }
     return true;
   }
 
   // Creates the image from the given filename on disk, and returns true on
   // success.
   bool CreateFromFilename(const char* filename) {
-    FILE* f;
-    if (fopen_s(&f, filename, "rb") != 0)
+    FILE* f = file_util::OpenFile(std::string(filename), "rb");
+    if (!f)
       return false;
 
     std::vector<unsigned char> compressed;
     const int buf_size = 1024;
     unsigned char buf[buf_size];
     size_t num_read = 0;
     while ((num_read = fread(buf, 1, buf_size, f)) > 0) {
       std::copy(buf, &buf[num_read], std::back_inserter(compressed));
     }
 
-    fclose(f);
+    file_util::CloseFile(f);
 
     if (!PNGDecoder::Decode(&compressed[0], compressed.size(),
                           PNGDecoder::FORMAT_RGBA, &data_, &w_, &h_)) {
       Clear();
       return false;
     }
     return true;
   }
 
   void Clear() {
@@ skipping 169 matching lines @@
   }
 
   if (argc == 3) {
     return CompareImages(argv[1], argv[2]);
   }
 
   PrintHelp();
   return kStatusError;
 }