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77 lines
2.5 KiB
77 lines
2.5 KiB
// Copyright 2016 The PDFium Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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#ifndef TESTING_LIBFUZZER_XFA_CODEC_FUZZER_H_ |
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#define TESTING_LIBFUZZER_XFA_CODEC_FUZZER_H_ |
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#include <memory> |
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#include "core/fxcodec/codec/ccodec_bmpmodule.h" |
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#include "core/fxcodec/codec/ccodec_gifmodule.h" |
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#include "core/fxcodec/codec/ccodec_pngmodule.h" |
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#include "core/fxcodec/codec/ccodec_progressivedecoder.h" |
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#include "core/fxcodec/codec/ccodec_tiffmodule.h" |
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#include "core/fxcodec/fx_codec.h" |
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#include "core/fxcrt/fx_stream.h" |
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#include "third_party/base/ptr_util.h" |
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class XFACodecFuzzer { |
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public: |
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static int Fuzz(const uint8_t* data, size_t size, FXCODEC_IMAGE_TYPE type) { |
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auto mgr = pdfium::MakeUnique<CCodec_ModuleMgr>(); |
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mgr->SetBmpModule(pdfium::MakeUnique<CCodec_BmpModule>()); |
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mgr->SetGifModule(pdfium::MakeUnique<CCodec_GifModule>()); |
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mgr->SetPngModule(pdfium::MakeUnique<CCodec_PngModule>()); |
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mgr->SetTiffModule(pdfium::MakeUnique<CCodec_TiffModule>()); |
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std::unique_ptr<CCodec_ProgressiveDecoder> decoder = |
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mgr->CreateProgressiveDecoder(); |
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CFX_RetainPtr<Reader> source(new Reader(data, size)); |
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FXCODEC_STATUS status = decoder->LoadImageInfo(source, type, nullptr, true); |
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if (status != FXCODEC_STATUS_FRAME_READY) |
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return 0; |
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std::unique_ptr<CFX_DIBitmap> bitmap(new CFX_DIBitmap); |
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bitmap->Create(decoder->GetWidth(), decoder->GetHeight(), FXDIB_Argb); |
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int32_t frames; |
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if (decoder->GetFrames(frames) != FXCODEC_STATUS_DECODE_READY || |
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frames == 0) |
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return 0; |
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status = decoder->StartDecode(bitmap.get(), 0, 0, bitmap->GetWidth(), |
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bitmap->GetHeight()); |
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while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE) |
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status = decoder->ContinueDecode(); |
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return 0; |
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} |
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private: |
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class Reader : public IFX_SeekableReadStream { |
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public: |
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Reader(const uint8_t* data, size_t size) : m_data(data), m_size(size) {} |
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~Reader() {} |
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bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override { |
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if (offset < 0 || static_cast<size_t>(offset) >= m_size) |
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return false; |
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if (offset + size > m_size) |
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size = m_size - offset; |
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if (size == 0) |
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return false; |
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memcpy(buffer, m_data + offset, size); |
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return true; |
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} |
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FX_FILESIZE GetSize() override { return static_cast<FX_FILESIZE>(m_size); } |
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private: |
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const uint8_t* const m_data; |
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size_t m_size; |
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}; |
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}; |
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#endif // TESTING_LIBFUZZER_XFA_CODEC_FUZZER_H_
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