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      1 // Copyright 2016 The PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include <memory>
      6 
      7 #include "core/fxcrt/cfx_seekablestreamproxy.h"
      8 #include "core/fxcrt/css/cfx_css.h"
      9 #include "core/fxcrt/css/cfx_csssyntaxparser.h"
     10 #include "core/fxcrt/fx_string.h"
     11 #include "core/fxcrt/retain_ptr.h"
     12 
     13 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     14   WideString input =
     15       WideString::FromUTF8(ByteStringView(data, static_cast<size_t>(size)));
     16 
     17   // If we convert the input into an empty string bail out.
     18   if (input.GetLength() == 0)
     19     return 0;
     20 
     21   CFX_CSSSyntaxParser parser(input.c_str(), input.GetLength());
     22   CFX_CSSSyntaxStatus status;
     23   do {
     24     status = parser.DoSyntaxParse();
     25   } while (status != CFX_CSSSyntaxStatus::Error &&
     26            status != CFX_CSSSyntaxStatus::EOS);
     27   return 0;
     28 }
     29