[lib/Fuzzer] extend the fuzzer interface to allow user-supplied mutators

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238059 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Fuzzer/FuzzerInterface.cpp

@@ -0,0 +1,27 @@
+//===- 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"
+
+namespace fuzzer {
+size_t UserSuppliedFuzzer::BasicMutate(uint8_t *Data, size_t Size,
+                                       size_t MaxSize) {
+  return ::fuzzer::Mutate(Data, Size, MaxSize);
+}
+size_t UserSuppliedFuzzer::BasicCrossOver(const uint8_t *Data1, size_t Size1,
+                                          const uint8_t *Data2, size_t Size2,
+                                          uint8_t *Out, size_t MaxOutSize) {
+  return ::fuzzer::CrossOver(Data1, Size1, Data2, Size2, Out, MaxOutSize);
+}
+
+}  // namespace fuzzer.