From c96238d85f4a784402db6cbf16630b977617eb1a Mon Sep 17 00:00:00 2001
From: Daniil Kuts <13482580+apach301@users.noreply.github.com>
Date: Fri, 27 May 2022 13:52:31 +0300
Subject: Add AFL_SYNC_TIME variable for synchronization time tuning (#1425)

* Add AFL_SYNC_TIME variable for synchronization time tuning

* Documentation for AFL_SYNC_TIME variable
---
 src/afl-fuzz-state.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/afl-fuzz-state.c')

diff --git a/src/afl-fuzz-state.c b/src/afl-fuzz-state.c
index 98217438..cbe32c75 100644
--- a/src/afl-fuzz-state.c
+++ b/src/afl-fuzz-state.c
@@ -101,6 +101,7 @@ void afl_state_init(afl_state_t *afl, uint32_t map_size) {
   afl->stats_update_freq = 1;
   afl->stats_avg_exec = 0;
   afl->skip_deterministic = 1;
+  afl->sync_time = SYNC_TIME;
   afl->cmplog_lvl = 2;
   afl->min_length = 1;
   afl->max_length = MAX_FILE;
@@ -519,6 +520,17 @@ void read_afl_environment(afl_state_t *afl, char **envp) {
 
             }
 
+          } else if (!strncmp(env, "AFL_SYNC_TIME",
+
+                              afl_environment_variable_len)) {
+
+            int time = atoi((u8 *)get_afl_env(afl_environment_variables[i]));
+            if (time > 0) {
+                afl->sync_time = time * (60 * 1000LL);
+            } else {
+              WARNF("incorrect value for AFL_SYNC_TIME environment variable, "
+                    "used default value %lld instead.", afl->sync_time / 60 / 1000);
+            }
           }
 
         } else {
-- 
cgit 1.4.1