AFL_DISABLE_REDUNDANT

5 files changed, 19 insertions, 6 deletions

diff --git a/src/afl-fuzz-init.c b/src/afl-fuzz-init.c
index 2d540eb1..b3fe9318 100644
--- a/src/afl-fuzz-init.c
+++ b/src/afl-fuzz-init.c
@@ -933,10 +933,13 @@ void perform_dry_run(afl_state_t *afl) {
     res = calibrate_case(afl, q, use_mem, 0, 1);
 
     /* For AFLFast schedules we update the queue entry */
-    if (unlikely(afl->schedule >= FAST && afl->schedule <= RARE) && likely(q->exec_cksum)) {
+    if (unlikely(afl->schedule >= FAST && afl->schedule <= RARE) &&
+        likely(q->exec_cksum)) {
+
       q->n_fuzz_entry = q->exec_cksum % N_FUZZ_SIZE;
+
     }
-     
+
     if (afl->stop_soon) { return; }
 
     if (res == afl->crash_mode || res == FSRV_RUN_NOBITS) {
diff --git a/src/afl-fuzz-queue.c b/src/afl-fuzz-queue.c
index df4e7d79..5987ad0c 100644
--- a/src/afl-fuzz-queue.c
+++ b/src/afl-fuzz-queue.c
@@ -370,6 +370,7 @@ void mark_as_redundant(afl_state_t *afl, struct queue_entry *q, u8 state) {
 
     s32 fd;
 
+    if (unlikely(afl->afl_env.afl_disable_redundant)) { q->disabled = 1; }
     fd = open(fn, O_WRONLY | O_CREAT | O_EXCL, DEFAULT_PERMISSION);
     if (fd < 0) { PFATAL("Unable to create '%s'", fn); }
     close(fd);
diff --git a/src/afl-fuzz-redqueen.c b/src/afl-fuzz-redqueen.c
index cfa57c1d..9316da71 100644
--- a/src/afl-fuzz-redqueen.c
+++ b/src/afl-fuzz-redqueen.c
@@ -2764,15 +2764,15 @@ static u8 rtn_fuzz(afl_state_t *afl, u32 key, u8 *orig_buf, u8 *buf, u8 *cbuf,
 #ifdef _DEBUG
     u32                j;
     struct cmp_header *hh = &afl->orig_cmp_map->headers[key];
-    fprintf(stderr, "RTN N hits=%u shape=%u attr=%u v0=", h->hits,
-            hshape, h->attribute);
+    fprintf(stderr, "RTN N hits=%u shape=%u attr=%u v0=", h->hits, hshape,
+            h->attribute);
     for (j = 0; j < 8; j++)
       fprintf(stderr, "%02x", o->v0[j]);
     fprintf(stderr, " v1=");
     for (j = 0; j < 8; j++)
       fprintf(stderr, "%02x", o->v1[j]);
-    fprintf(stderr, "\nRTN O hits=%u shape=%u attr=%u o0=", hh->hits,
-             hshape, hh->attribute);
+    fprintf(stderr, "\nRTN O hits=%u shape=%u attr=%u o0=", hh->hits, hshape,
+            hh->attribute);
     for (j = 0; j < 8; j++)
       fprintf(stderr, "%02x", orig_o->v0[j]);
     fprintf(stderr, " o1=");
@@ -3273,3 +3273,4 @@ exit_its:
   return r;
 
 }
+
diff --git a/src/afl-fuzz-state.c b/src/afl-fuzz-state.c
index c21ae6be..543fdc1c 100644
--- a/src/afl-fuzz-state.c
+++ b/src/afl-fuzz-state.c
@@ -293,6 +293,13 @@ void read_afl_environment(afl_state_t *afl, char **envp) {
             afl->afl_env.afl_cmplog_only_new =
                 get_afl_env(afl_environment_variables[i]) ? 1 : 0;
 
+          } else if (!strncmp(env, "AFL_DISABLE_REDUNDANT",
+
+                              afl_environment_variable_len)) {
+
+            afl->afl_env.afl_disable_redundant =
+                get_afl_env(afl_environment_variables[i]) ? 1 : 0;
+
           } else if (!strncmp(env, "AFL_NO_STARTUP_CALIBRATION",
 
                               afl_environment_variable_len)) {
diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index 00d24ab1..329ce942 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -264,6 +264,7 @@ static void usage(u8 *argv0, int more_help) {
       "AFL_CYCLE_SCHEDULES: after completing a cycle, switch to a different -p schedule\n"
       "AFL_DEBUG: extra debugging output for Python mode trimming\n"
       "AFL_DEBUG_CHILD: do not suppress stdout/stderr from target\n"
+      "AFL_DISABLE_REDUNDANT: disable any queue item that is redundant\n"
       "AFL_DISABLE_TRIM: disable the trimming of test cases\n"
       "AFL_DUMB_FORKSRV: use fork server without feedback from target\n"
       "AFL_EXIT_WHEN_DONE: exit when all inputs are run and no new finds are found\n"