42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
#include <cstddef>
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#include <cstdint>
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#include <cstdlib>
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#include <vector>
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#include <FreeImage.h>
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namespace {
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// Returns true if the format should be attempted to loaded from memory.
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bool SafeToLoadFromMemory(FREE_IMAGE_FORMAT fif) {
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// For now, just load if it is a BMP. Future heuristics may need to be based
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// on the expected size in different formats for memory regions to avoid OOMs.
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return fif == FIF_BMP;
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}
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} // namespace
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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static bool initialized = false;
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if (!initialized) {
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FreeImage_Initialise();
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}
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if (size > 100 * 1000) {
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return 0;
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}
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std::vector<uint8_t> fuzzer_data_vector(data, data + size);
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FIMEMORY* fiMem = FreeImage_OpenMemory(
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reinterpret_cast<unsigned char*>(fuzzer_data_vector.data()),
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fuzzer_data_vector.size());
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FREE_IMAGE_FORMAT fif = FreeImage_GetFileTypeFromMemory(fiMem, 0);
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if (SafeToLoadFromMemory(fif)) {
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FIBITMAP* fiBitmap = FreeImage_LoadFromMemory(fif, fiMem);
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FreeImage_Unload(fiBitmap);
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}
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FreeImage_CloseMemory(fiMem);
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return 0;
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}
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