just read the data and run, abort if too large

src/include/deepstate/DeepState.h

@@ -720,6 +720,35 @@ static int DeepState_RunSavedTestCases(void) {
 }
 
 extern int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (Size > sizeof(DeepState_Input)) {
+    return 0; // Just ignore any too-big inputs
+  }
+  
+  struct DeepState_TestInfo *test = NULL;
+
+  DeepState_Setup();
+
+#ifdef LIBFUZZER_WHICH_TEST
+  for (test = DeepState_FirstTest(); test != NULL; test = test->prev) {
+    if (strncmp(LIBFUZZER_WHICH_TEST, test->test_name, strlen(FLAGS_input_which_test)) == 0) {
+      break;
+    }
+  }
+#else
+  test = DeepState_FirstTest();
+#endif
+
+  memset((void *) DeepState_Input, 0, sizeof(DeepState_Input));
+  DeepState_InputIndex = 0;
+
+  memcpy((void *) DeepState_Input, (void *) Data, Size);
+
+  DeepState_Begin(test);
+
+  enum DeepState_TestRunResult result = DeepState_ForkAndRunTest(test);
+
+  DeepState_Teardown();
+  
   return 0;  // Non-zero return values are reserved for future use.
 }