1 files changed, 17 insertions, 23 deletions

diff --git a/examples/aflpp_driver/aflpp_driver.c b/examples/aflpp_driver/aflpp_driver.c
index b764338e..8e0b554a 100644
--- a/examples/aflpp_driver/aflpp_driver.c
+++ b/examples/aflpp_driver/aflpp_driver.c
@@ -106,10 +106,7 @@ If 1, close stdout at startup. If 2 close stderr; if 3 close both.
   #error "Support for your platform has not been implemented"
 #endif
 
-int                   __afl_sharedmem_fuzzing = 1;
-extern unsigned int * __afl_fuzz_len;
-extern unsigned char *__afl_fuzz_ptr;
-// extern struct cmp_map *__afl_cmp_map;
+int                   __afl_sharedmem_fuzzing = 0;
 
 // libFuzzer interface is thin, so we don't include any libFuzzer headers.
 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
@@ -275,6 +272,7 @@ int main(int argc, char **argv) {
   // Do any other expensive one-time initialization here.
 
   uint8_t dummy_input[64] = {0};
+  uint8_t buf[1024000];
   memcpy(dummy_input, (void *)AFL_PERSISTENT, sizeof(AFL_PERSISTENT));
   memcpy(dummy_input + 32, (void *)AFL_DEFER_FORKSVR,
          sizeof(AFL_DEFER_FORKSVR));
@@ -285,16 +283,24 @@ int main(int argc, char **argv) {
     printf("WARNING: using the deprecated call style `%s %d`\n", argv[0], N);
   else if (argc > 1) {
 
-    __afl_sharedmem_fuzzing = 0;
-    __afl_manual_init();
+    if (!getenv("AFL_DISABLE_LLVM_INSTRUMENTATION")) {
+
+      __afl_manual_init();
+
+    }
+
     return ExecuteFilesOnyByOne(argc, argv);
 
   }
 
   assert(N > 0);
 
-  //  if (!getenv("AFL_DRIVER_DONT_DEFER"))
-  __afl_manual_init();
+  if (!getenv("AFL_DISABLE_LLVM_INSTRUMENTATION")) {
+
+    fprintf(stderr, "performing manual init\n");
+    __afl_manual_init();
+
+  }
 
   // Call LLVMFuzzerTestOneInput here so that coverage caused by initialization
   // on the first execution of LLVMFuzzerTestOneInput is ignored.
@@ -303,25 +309,13 @@ int main(int argc, char **argv) {
   int num_runs = 0;
   while (__afl_persistent_loop(N)) {
 
-#ifdef _DEBUG
-    fprintf(stderr, "CLIENT crc: %016llx len: %u\n",
-            hash64(__afl_fuzz_ptr, *__afl_fuzz_len, 0xa5b35705),
-            *__afl_fuzz_len);
-    fprintf(stderr, "RECV:");
-    for (int i = 0; i < *__afl_fuzz_len; i++)
-      fprintf(stderr, "%02x", __afl_fuzz_ptr[i]);
-    fprintf(stderr, "\n");
-#endif
-    if (*__afl_fuzz_len) {
-
-      num_runs++;
-      LLVMFuzzerTestOneInput(__afl_fuzz_ptr, *__afl_fuzz_len);
+    ssize_t r = read(0, buf, sizeof(buf));
 
-    }
+    if (r > 0) { LLVMFuzzerTestOneInput(buf, r); }
 
   }
 
-  printf("%s: successfully executed %d input(s)\n", argv[0], num_runs);
+  printf("%s: successfully executed input(s)\n", argv[0]);
 
 }