add libfuzzer custom mutator, minor enhancements and fixes

1 files changed, 36 insertions, 0 deletions

diff --git a/custom_mutators/libfuzzer/libfuzzer.inc b/custom_mutators/libfuzzer/libfuzzer.inc
new file mode 100644
index 00000000..01f21dbe
--- /dev/null
+++ b/custom_mutators/libfuzzer/libfuzzer.inc
@@ -0,0 +1,36 @@
+
+
+extern "C" ATTRIBUTE_INTERFACE void
+LLVMFuzzerMyInit(int (*Callback)(const uint8_t *Data, size_t Size), unsigned int Seed) {
+  Random Rand(Seed);
+  FuzzingOptions Options;
+  Options.Verbosity = 3;
+  Options.MaxLen = 1024000;
+  Options.LenControl = true;
+  Options.DoCrossOver = false;
+  Options.MutateDepth = 6;
+  Options.UseCounters = false;
+  Options.UseMemmem = false;
+  Options.UseCmp = false;
+  Options.UseValueProfile = false;
+  Options.Shrink = false;
+  Options.ReduceInputs = false;
+  Options.PreferSmall = false;
+  Options.ReloadIntervalSec = 0;
+  Options.OnlyASCII = false;
+  Options.DetectLeaks = false;
+  Options.PurgeAllocatorIntervalSec = 0;
+  Options.TraceMalloc = false;
+  Options.RssLimitMb = 100;
+  Options.MallocLimitMb = 100;
+  Options.MaxNumberOfRuns = 0;
+  Options.ReportSlowUnits = false;
+  Options.Entropic = false;
+  
+  struct EntropicOptions Entropic;
+  Entropic.Enabled = Options.Entropic;
+  EF = new ExternalFunctions();
+  auto *MD = new MutationDispatcher(Rand, Options);
+  auto *Corpus = new InputCorpus(Options.OutputCorpus, Entropic);
+  auto *F = new Fuzzer(Callback, *Corpus, *MD, Options);
+}