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