1 files changed, 4 insertions, 0 deletions
diff --git a/llvm_mode/afl-clang-fast.c b/llvm_mode/afl-clang-fast.c
index 52a4829c..b121ea97 100644
--- a/llvm_mode/afl-clang-fast.c
+++ b/llvm_mode/afl-clang-fast.c
@@ -548,6 +548,10 @@ int main(int argc, char **argv, char **envp) {
 
   if ((ptr = getenv("AFL_LLVM_INSTRUMENT")) != NULL) {
 
+    if (strncasecmp(ptr, "default", strlen("default")) == 0 ||
+        strncasecmp(ptr, "afl", strlen("afl")) == 0 || 
+        strncasecmp(ptr, "classic", strlen("classic")) == 0 )
+      instrument_mode = INSTRUMENT_DEFAULT;
     if (strncasecmp(ptr, "cfg", strlen("cfg")) == 0 ||
         strncasecmp(ptr, "instrim", strlen("instrim")) == 0)
       instrument_mode = INSTRUMENT_CFG;