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232f5fc9f3
The jpeg library has some assembly code that is missed by the compiler instrumentation used by memory sanitization. There is a runtime environment variable that is used to work around this issue.
59 lines
1.0 KiB
C++
59 lines
1.0 KiB
C++
#include <qpdf/Pl_Discard.hh>
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#include <qpdf/Pl_DCT.hh>
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#include <iostream>
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#include <stdexcept>
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#include <cstdlib>
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class FuzzHelper
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{
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public:
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FuzzHelper(unsigned char const* data, size_t size);
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void run();
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private:
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void doChecks();
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unsigned char const* data;
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size_t size;
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};
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FuzzHelper::FuzzHelper(unsigned char const* data, size_t size) :
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data(data),
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size(size)
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{
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}
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void
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FuzzHelper::doChecks()
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{
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Pl_Discard discard;
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Pl_DCT p("decode", &discard);
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p.write(const_cast<unsigned char*>(data), size);
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p.finish();
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}
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void
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FuzzHelper::run()
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{
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try
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{
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doChecks();
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}
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catch (std::runtime_error const& e)
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{
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std::cerr << "runtime_error: " << e.what() << std::endl;
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}
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}
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extern "C" int LLVMFuzzerTestOneInput(unsigned char const* data, size_t size)
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{
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#ifndef _WIN32
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// Used by jpeg library to work around false positives in memory
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// sanitizer.
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setenv("JSIMD_FORCENONE", "1", 1);
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#endif
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FuzzHelper f(data, size);
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f.run();
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return 0;
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}
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