mirror of https://github.com/google/oss-fuzz.git
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
/*
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# Copyright 2016 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <memory>
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#include <turbojpeg.h>
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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tjhandle jpegDecompressor = tjInitDecompress();
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int width, height, subsamp, colorspace;
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int res = tjDecompressHeader3(
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jpegDecompressor, data, size, &width, &height, &subsamp, &colorspace);
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// Bail out if decompressing the headers failed, the width or height is 0,
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// or the image is too large (avoids slowing down too much). Cast to size_t to
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// avoid overflows on the multiplication
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if (res != 0 || width == 0 || height == 0 || ((size_t)width * height > (1024 * 1024))) {
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tjDestroy(jpegDecompressor);
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return 0;
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}
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std::unique_ptr<unsigned char[]> buf(new unsigned char[width * height * 3]);
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tjDecompress2(
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jpegDecompressor, data, size, buf.get(), width, 0, height, TJPF_RGB, 0);
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tjDestroy(jpegDecompressor);
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return 0;
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}
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