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-rw-r--r--src/afl-fuzz-init.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/src/afl-fuzz-init.c b/src/afl-fuzz-init.c
index 8ab44a3b..76291cc4 100644
--- a/src/afl-fuzz-init.c
+++ b/src/afl-fuzz-init.c
@@ -9,7 +9,7 @@
                         Andrea Fioraldi <andreafioraldi@gmail.com>
 
    Copyright 2016, 2017 Google Inc. All rights reserved.
-   Copyright 2019-2023 AFLplusplus Project. All rights reserved.
+   Copyright 2019-2024 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.
@@ -2236,6 +2236,21 @@ void setup_dirs_fds(afl_state_t *afl) {
 
   fflush(afl->fsrv.plot_file);
 
+#ifdef INTROSPECTION
+
+  tmp = alloc_printf("%s/plot_det_data", afl->out_dir);
+
+  int fd = open(tmp, O_WRONLY | O_CREAT, DEFAULT_PERMISSION);
+  if (fd < 0) { PFATAL("Unable to create '%s'", tmp); }
+  ck_free(tmp);
+
+  afl->fsrv.det_plot_file = fdopen(fd, "w");
+  if (!afl->fsrv.det_plot_file) { PFATAL("fdopen() failed"); }
+
+  if (afl->in_place_resume) { fseek(afl->fsrv.det_plot_file, 0, SEEK_END); }
+
+#endif
+
   /* ignore errors */
 
 }