xref: /aosp_15_r20/external/pdfium/testing/fuzzers/pdf_css_fuzzer.cc (revision 3ac0a46f773bac49fa9476ec2b1cf3f8da5ec3a4)
1 // Copyright 2016 The PDFium Authors
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 "core/fxcrt/css/cfx_css.h"
6 #include "core/fxcrt/css/cfx_csssyntaxparser.h"
7 #include "core/fxcrt/fx_string.h"
8 
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)9 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
10   WideString input =
11       WideString::FromUTF8(ByteStringView(data, static_cast<size_t>(size)));
12 
13   // If we convert the input into an empty string bail out.
14   if (input.IsEmpty())
15     return 0;
16 
17   CFX_CSSSyntaxParser parser(input.AsStringView());
18   CFX_CSSSyntaxParser::Status status;
19   do {
20     status = parser.DoSyntaxParse();
21   } while (status != CFX_CSSSyntaxParser::Status::kError &&
22            status != CFX_CSSSyntaxParser::Status::kEOS);
23   return 0;
24 }
25