Merge branch 'dev' of github.com:aflplusplus/aflplusplus into dev

5 files changed, 79 insertions, 6 deletions

diff --git a/examples/aflpp_driver/aflpp_driver.cpp b/examples/aflpp_driver/aflpp_driver.cpp
index 3dcc8c3c..f2c604da 100644
--- a/examples/aflpp_driver/aflpp_driver.cpp
+++ b/examples/aflpp_driver/aflpp_driver.cpp
@@ -252,18 +252,18 @@ int main(int argc, char **argv) {
   else if(argc == 2 && (N = atoi(argv[1])) > 0)
       Printf("WARNING: using the deprecated call style `%s %d`\n", argv[0], N);
   else if (argc > 1) {
-    if (!getenv("AFL_DRIVER_DONT_DEFER")) {
+//    if (!getenv("AFL_DRIVER_DONT_DEFER")) {
       __afl_sharedmem_fuzzing = 0;
       __afl_manual_init();
-    }
+//    }
     return ExecuteFilesOnyByOne(argc, argv);
     exit(0);
   }
 
   assert(N > 0);
 
-  if (!getenv("AFL_DRIVER_DONT_DEFER"))
-    __afl_manual_init();
+//  if (!getenv("AFL_DRIVER_DONT_DEFER"))
+  __afl_manual_init();
 
   // Call LLVMFuzzerTestOneInput here so that coverage caused by initialization
   // on the first execution of LLVMFuzzerTestOneInput is ignored.
@@ -272,7 +272,7 @@ int main(int argc, char **argv) {
 
   int num_runs = 0;
   while (__afl_persistent_loop(N)) {
-    if (__afl_fuzz_len > 0) {
+    if (__afl_fuzz_len) {
       num_runs++;
       LLVMFuzzerTestOneInput(__afl_fuzz_ptr, __afl_fuzz_len);
     }
diff --git a/examples/persistent_demo/Makefile b/examples/persistent_demo/Makefile
index cbbb7239..6fa1c30e 100644
--- a/examples/persistent_demo/Makefile
+++ b/examples/persistent_demo/Makefile
@@ -1,6 +1,10 @@
 all:
 	afl-clang-fast -o persistent_demo persistent_demo.c
 	afl-clang-fast -o persistent_demo_new persistent_demo_new.c
+	AFL_DONT_OPTIMIZE=1 afl-clang-fast -o test-instr test-instr.c
+
+document:
+	AFL_DONT_OPTIMIZE=1 afl-clang-fast -D_AFL_DOCUMENT_MUTATIONS -o test-instr test-instr.c
 
 clean:
-	rm -f persistent_demo persistent_demo_new
+	rm -f persistent_demo persistent_demo_new test-instr
diff --git a/examples/persistent_demo/persistent_demo.c b/examples/persistent_demo/persistent_demo.c
index 2da49bb0..4cedc32c 100644
--- a/examples/persistent_demo/persistent_demo.c
+++ b/examples/persistent_demo/persistent_demo.c
@@ -41,6 +41,7 @@ int main(int argc, char **argv) {
      terminate normally. This limits the impact of accidental memory leaks
      and similar hiccups. */
 
+  __AFL_INIT();
   while (__AFL_LOOP(1000)) {
 
     /*** PLACEHOLDER CODE ***/
diff --git a/examples/persistent_demo/persistent_demo_new.c b/examples/persistent_demo/persistent_demo_new.c
index 36411e13..69468bdd 100644
--- a/examples/persistent_demo/persistent_demo_new.c
+++ b/examples/persistent_demo/persistent_demo_new.c
@@ -42,6 +42,7 @@ int main(int argc, char **argv) {
      terminate normally. This limits the impact of accidental memory leaks
      and similar hiccups. */
 
+  __AFL_INIT();
   buf = __AFL_FUZZ_TESTCASE_BUF;
 
   while (__AFL_LOOP(1000)) {
diff --git a/examples/persistent_demo/test-instr.c b/examples/persistent_demo/test-instr.c
new file mode 100644
index 00000000..4cd07102
--- /dev/null
+++ b/examples/persistent_demo/test-instr.c
@@ -0,0 +1,67 @@
+/*
+   american fuzzy lop++ - a trivial program to test the build
+   --------------------------------------------------------
+   Originally written by Michal Zalewski
+   Copyright 2014 Google Inc. All rights reserved.
+   Copyright 2019-2020 AFLplusplus Project. All rights reserved.
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at:
+     http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+__AFL_FUZZ_INIT();
+
+int main(int argc, char **argv) {
+
+  __AFL_INIT();
+  unsigned char *buf = __AFL_FUZZ_TESTCASE_BUF;
+
+  while (__AFL_LOOP(2147483647)) {
+
+    unsigned int len = __AFL_FUZZ_TESTCASE_LEN;
+
+#ifdef _AFL_DOCUMENT_MUTATIONS
+    static unsigned int counter = 0;
+    char                fn[32];
+    sprintf(fn, "%09u:test-instr", counter);
+    int fd_doc = open(fn, O_WRONLY | O_CREAT | O_TRUNC, 0600);
+    if (fd_doc >= 0) {
+
+      if (write(fd_doc, buf, len) != __afl_fuzz_len) {
+
+        fprintf(stderr, "write of mutation file failed: %s\n", fn);
+        unlink(fn);
+
+      }
+
+      close(fd_doc);
+
+    }
+
+    counter++;
+#endif
+
+    if (!len) continue;
+
+    if (buf[0] == '0')
+      printf("Looks like a zero to me!\n");
+    else if (buf[0] == '1')
+      printf("Pretty sure that is a one!\n");
+    else
+      printf("Neither one or zero? How quaint!\n");
+
+  }
+
+  return 0;
+
+}
+