forked from OSchip/llvm-project
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
//===- FuzzerInterface.cpp - Mutate a test input --------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// Parts of public interface for libFuzzer.
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//===----------------------------------------------------------------------===//
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#include "FuzzerInterface.h"
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#include "FuzzerInternal.h"
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#include <random>
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namespace fuzzer {
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void FuzzerRandomLibc::ResetSeed(unsigned int seed) { srand(seed); }
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size_t FuzzerRandomLibc::Rand() { return rand(); }
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struct FuzzerRandom_mt19937::Impl : public std::mt19937 {
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Impl(unsigned seed) : std::mt19937(seed) {}
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};
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void FuzzerRandom_mt19937::ResetSeed(unsigned int seed) {
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delete R;
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R = new Impl(seed);
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}
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FuzzerRandom_mt19937::~FuzzerRandom_mt19937() { delete R; }
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size_t FuzzerRandom_mt19937::Rand() { return (*R)(); }
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UserSuppliedFuzzer::UserSuppliedFuzzer(FuzzerRandomBase *Rand)
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: Rand(Rand), MD(new MutationDispatcher(*Rand)) {}
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UserSuppliedFuzzer::~UserSuppliedFuzzer() {
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if (OwnRand)
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delete Rand;
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delete MD;
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}
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size_t UserSuppliedFuzzer::Mutate(uint8_t *Data, size_t Size, size_t MaxSize) {
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return GetMD().Mutate(Data, Size, MaxSize);
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}
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size_t UserSuppliedFuzzer::CrossOver(const uint8_t *Data1, size_t Size1,
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const uint8_t *Data2, size_t Size2,
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uint8_t *Out, size_t MaxOutSize) {
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return GetMD().CrossOver(Data1, Size1, Data2, Size2, Out, MaxOutSize);
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}
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size_t Mutate(uint8_t *Data, size_t Size, size_t MaxSize,
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FuzzerRandomBase &Rand) {
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MutationDispatcher MD(Rand);
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return MD.Mutate(Data, Size, MaxSize);
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}
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} // namespace fuzzer.
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