no more (?) statics

10 files changed, 207 insertions, 158 deletions

diff --git a/include/afl-fuzz.h b/include/afl-fuzz.h
index 28156268..1a798239 100644
--- a/include/afl-fuzz.h
+++ b/include/afl-fuzz.h
@@ -109,8 +109,9 @@
 #define CASE_PREFIX "id_"
 #endif                                                    /* ^!SIMPLE_FILES */
 
-#define STAGE_BUF_SIZE (64) /* usable size of the stage name buf in afl_state \
-                             */
+#define STAGE_BUF_SIZE                                   \
+  (64) /* usable size of the stage name buf in afl_state \
+        */
 
 extern s8  interesting_8[INTERESTING_8_LEN];
 extern s16 interesting_16[INTERESTING_8_LEN + INTERESTING_16_LEN];
@@ -801,10 +802,10 @@ u8 has_new_bits(afl_state_t *, u8 *);
 
 /* Misc */
 
-u8 * DI(u64);
-u8 * DF(double);
-u8 * DMS(u64);
-void DTD(u8 *, size_t, u64, u64);
+u8 *DI(u8 *, size_t, u64);
+u8 *DF(u8 *, size_t, double);
+u8 *DMS(u8 *, size_t, u64);
+u8 *DTD(u8 *, size_t, u64, u64);
 
 /* Extras */
 
diff --git a/src/afl-forkserver.c b/src/afl-forkserver.c
index 6755a73c..75b69178 100644
--- a/src/afl-forkserver.c
+++ b/src/afl-forkserver.c
@@ -55,16 +55,16 @@ static void forkserver_stringify_int(u8 *buf, size_t len, u64 val) {
 
   u8 cur = 0;
 
-#define CHK_FORMAT(_divisor, _limit_mult, _fmt, _cast)    \
-  do {                                                    \
-                                                          \
-    if (val < (_divisor) * (_limit_mult)) {               \
-                                                          \
-      snprintf(buf, len, _fmt, ((_cast)val) / (_divisor));\
-      return;                                             \
-                                                          \
-    }                                                     \
-                                                          \
+#define CHK_FORMAT(_divisor, _limit_mult, _fmt, _cast)     \
+  do {                                                     \
+                                                           \
+    if (val < (_divisor) * (_limit_mult)) {                \
+                                                           \
+      snprintf(buf, len, _fmt, ((_cast)val) / (_divisor)); \
+      return;                                              \
+                                                           \
+    }                                                      \
+                                                           \
   } while (0)
 
   cur = (cur + 1) % 12;
@@ -454,7 +454,8 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv) {
     } else {
 
       u8 mem_limit_buf[16];
-      forkserver_stringify_int(mem_limit_buf, sizeof(mem_limit_buf), fsrv->mem_limit << 20);
+      forkserver_stringify_int(mem_limit_buf, sizeof(mem_limit_buf),
+                               fsrv->mem_limit << 20);
 
       SAYF("\n" cLRD "[-] " cRST
            "Whoops, the target binary crashed suddenly, "
@@ -524,7 +525,8 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv) {
   } else {
 
     u8 mem_limit_buf[16];
-    forkserver_stringify_int(mem_limit_buf, sizeof(mem_limit_buf), fsrv->mem_limit << 20);
+    forkserver_stringify_int(mem_limit_buf, sizeof(mem_limit_buf),
+                             fsrv->mem_limit << 20);
 
     SAYF(
         "\n" cLRD "[-] " cRST
diff --git a/src/afl-fuzz-bitmap.c b/src/afl-fuzz-bitmap.c
index de5d147e..86474adc 100644
--- a/src/afl-fuzz-bitmap.c
+++ b/src/afl-fuzz-bitmap.c
@@ -465,6 +465,8 @@ static void write_crash_readme(afl_state_t *afl) {
   s32   fd;
   FILE *f;
 
+  u8 int_buf[16];
+
   fd = open(fn, O_WRONLY | O_CREAT | O_EXCL, 0600);
   ck_free(fn);
 
@@ -501,7 +503,9 @@ static void write_crash_readme(afl_state_t *afl) {
 
       "  https://github.com/AFLplusplus/AFLplusplus\n\n",
 
-      afl->orig_cmdline, DMS(afl->fsrv.mem_limit << 20));  /* ignore errors */
+      afl->orig_cmdline,
+      DMS(int_buf, sizeof(int_buf),
+          afl->fsrv.mem_limit << 20));                     /* ignore errors */
 
   fclose(f);
 
diff --git a/src/afl-fuzz-cmplog.c b/src/afl-fuzz-cmplog.c
index 6211548b..5f7909cc 100644
--- a/src/afl-fuzz-cmplog.c
+++ b/src/afl-fuzz-cmplog.c
@@ -264,6 +264,8 @@ void init_cmplog_forkserver(afl_state_t *afl) {
 
     } else {
 
+      u8 int_buf[16];
+
       SAYF("\n" cLRD "[-] " cRST
            "Whoops, the target binary crashed suddenly, "
            "before receiving any input\n"
@@ -296,7 +298,8 @@ void init_cmplog_forkserver(afl_state_t *afl) {
            "options\n"
            "      fail, poke <afl-users@googlegroups.com> for troubleshooting "
            "tips.\n",
-           DMS(afl->fsrv.mem_limit << 20), afl->fsrv.mem_limit - 1);
+           DMS(int_buf, sizeof(int_buf), afl->fsrv.mem_limit << 20),
+           afl->fsrv.mem_limit - 1);
 
     }
 
@@ -331,6 +334,8 @@ void init_cmplog_forkserver(afl_state_t *afl) {
 
   } else {
 
+    u8 int_buf[16];
+
     SAYF(
         "\n" cLRD "[-] " cRST
         "Hmm, looks like the target binary terminated "
@@ -362,7 +367,8 @@ void init_cmplog_forkserver(afl_state_t *afl) {
               "never\n"
               "      reached before the program terminates.\n\n"
             : "",
-        DMS(afl->fsrv.mem_limit << 20), afl->fsrv.mem_limit - 1);
+        DMS(int_buf, sizeof(int_buf), afl->fsrv.mem_limit << 20),
+        afl->fsrv.mem_limit - 1);
 
   }
 
diff --git a/src/afl-fuzz-extras.c b/src/afl-fuzz-extras.c
index ff4c0ae2..256489f5 100644
--- a/src/afl-fuzz-extras.c
+++ b/src/afl-fuzz-extras.c
@@ -55,6 +55,8 @@ void load_extras_file(afl_state_t *afl, u8 *fname, u32 *min_len, u32 *max_len,
   u8 *  lptr;
   u32   cur_line = 0;
 
+  u8 int_bufs[2][16];
+
   f = fopen(fname, "r");
 
   if (!f) PFATAL("Unable to open '%s'", fname);
@@ -170,8 +172,9 @@ void load_extras_file(afl_state_t *afl, u8 *fname, u32 *min_len, u32 *max_len,
     afl->extras[afl->extras_cnt].len = klen;
 
     if (afl->extras[afl->extras_cnt].len > MAX_DICT_FILE)
-      FATAL("Keyword too big in line %u (%s, limit is %s)", cur_line, DMS(klen),
-            DMS(MAX_DICT_FILE));
+      FATAL("Keyword too big in line %u (%s, limit is %s)", cur_line,
+            DMS(int_bufs[0], sizeof(int_bufs[0]), klen),
+            DMS(int_bufs[1], sizeof(int_bufs[1]), MAX_DICT_FILE));
 
     if (*min_len > klen) *min_len = klen;
     if (*max_len < klen) *max_len = klen;
@@ -193,6 +196,8 @@ void load_extras(afl_state_t *afl, u8 *dir) {
   u32            min_len = MAX_DICT_FILE, max_len = 0, dict_level = 0;
   u8 *           x;
 
+  u8 int_bufs[2][16];
+
   /* If the name ends with @, extract level and continue. */
 
   if ((x = strchr(dir, '@'))) {
@@ -238,8 +243,9 @@ void load_extras(afl_state_t *afl, u8 *dir) {
     }
 
     if (st.st_size > MAX_DICT_FILE)
-      FATAL("Extra '%s' is too big (%s, limit is %s)", fn, DMS(st.st_size),
-            DMS(MAX_DICT_FILE));
+      FATAL("Extra '%s' is too big (%s, limit is %s)", fn,
+            DMS(int_bufs[0], sizeof(int_bufs[0]), st.st_size),
+            DMS(int_bufs[1], sizeof(int_bufs[1]), MAX_DICT_FILE));
 
     if (min_len > st.st_size) min_len = st.st_size;
     if (max_len < st.st_size) max_len = st.st_size;
@@ -273,11 +279,12 @@ check_and_sort:
         compare_extras_len);
 
   OKF("Loaded %u extra tokens, size range %s to %s.", afl->extras_cnt,
-      DMS(min_len), DMS(max_len));
+      DMS(int_bufs[0], sizeof(int_bufs[0]), min_len),
+      DMS(int_bufs[1], sizeof(int_bufs[1]), max_len));
 
   if (max_len > 32)
     WARNF("Some tokens are relatively large (%s) - consider trimming.",
-          DMS(max_len));
+          DMS(int_bufs[0], sizeof(int_bufs[0]), max_len));
 
   if (afl->extras_cnt > MAX_DET_EXTRAS)
     WARNF("More than %d tokens - will use them probabilistically.",
diff --git a/src/afl-fuzz-init.c b/src/afl-fuzz-init.c
index 48ccbe9c..4d68ee78 100644
--- a/src/afl-fuzz-init.c
+++ b/src/afl-fuzz-init.c
@@ -323,6 +323,8 @@ void read_testcases(afl_state_t *afl) {
   u32             i;
   u8 *            fn1;
 
+  u8 int_buf[12][16];
+
   /* Auto-detect non-in-place resumption attempts. */
 
   fn1 = alloc_printf("%s/queue", afl->in_dir);
@@ -389,8 +391,9 @@ void read_testcases(afl_state_t *afl) {
     }
 
     if (st.st_size > MAX_FILE)
-      FATAL("Test case '%s' is too big (%s, limit is %s)", fn2, DMS(st.st_size),
-            DMS(MAX_FILE));
+      FATAL("Test case '%s' is too big (%s, limit is %s)", fn2,
+            DMS(int_buf[0], sizeof(int_buf[0]), st.st_size),
+            DMS(int_buf[1], sizeof(int_buf[1]), MAX_FILE));
 
     /* Check for metadata that indicates that deterministic fuzzing
        is complete for this entry. We don't want to repeat deterministic
@@ -553,6 +556,8 @@ void perform_dry_run(afl_state_t *afl) {
 
         if (afl->fsrv.mem_limit) {
 
+          u8 int_tmp[16];
+
           SAYF("\n" cLRD "[-] " cRST
                "Oops, the program crashed with one of the test cases provided. "
                "There are\n"
@@ -593,8 +598,8 @@ void perform_dry_run(afl_state_t *afl) {
                "other options\n"
                "      fail, poke <afl-users@googlegroups.com> for "
                "troubleshooting tips.\n",
-               DMS(afl->fsrv.mem_limit << 20), afl->fsrv.mem_limit - 1,
-               doc_path);
+               DMS(int_tmp, sizeof(int_tmp), afl->fsrv.mem_limit << 20),
+               afl->fsrv.mem_limit - 1, doc_path);
 
         } else {
 
diff --git a/src/afl-fuzz-misc.c b/src/afl-fuzz-misc.c
index 90e0ee8a..c6117bd9 100644
--- a/src/afl-fuzz-misc.c
+++ b/src/afl-fuzz-misc.c
@@ -25,27 +25,22 @@
 
 #include "afl-fuzz.h"
 
-/* Describe integer. Uses 12 cyclic static buffers for return values. The value
-   returned should be five characters or less for all the integers we reasonably
-   expect to see. */
-
-u8 *DI(u64 val) {
-
-  static u8 tmp[12][16];
-  static u8 cur;
-
-  cur = (cur + 1) % 12;
-
-#define CHK_FORMAT(_divisor, _limit_mult, _fmt, _cast)    \
-  do {                                                    \
-                                                          \
-    if (val < (_divisor) * (_limit_mult)) {               \
-                                                          \
-      sprintf(tmp[cur], _fmt, ((_cast)val) / (_divisor)); \
-      return tmp[cur];                                    \
-                                                          \
-    }                                                     \
-                                                          \
+/* Describe integer. The buf should be
+   at least 6 bytes to fit all ints we randomly see.
+   Will return buf for convenience. */
+
+u8 *DI(u8 *buf, size_t len, u64 val) {
+\
+#define CHK_FORMAT(_divisor, _limit_mult, _fmt, _cast)     \
+  do {                                                     \
+                                                           \
+    if (val < (_divisor) * (_limit_mult)) {                \
+                                                           \
+      snprintf(buf, len, _fmt, ((_cast)val) / (_divisor)); \
+      return buf;                                          \
+                                                           \
+    }                                                      \
+                                                           \
   } while (0)
 
   /* 0-9999 */
@@ -82,44 +77,38 @@ u8 *DI(u64 val) {
   CHK_FORMAT(1000LL * 1000 * 1000 * 1000, 99.95, "%0.01fT", double);
 
   /* 100T+ */
-  strcpy(tmp[cur], "infty");
-  return tmp[cur];
+  strncpy(buf, "infty", len);
+  buf[len - 1] = '\0';
 
-}
+  return buf;
 
-/* Describe float. Similar to the above, except with a single
-   static buffer. */
+}
 
-u8 *DF(double val) {
+/* Describe float. Similar as int. */
 
-  static u8 tmp[16];
+u8 *DF(u8 *buf, size_t len, double val) {
 
   if (val < 99.995) {
 
-    sprintf(tmp, "%0.02f", val);
-    return tmp;
+    snprintf(buf, len, "%0.02f", val);
 
-  }
+  } else if (val < 999.95) {
+
+    snprintf(buf, len, "%0.01f", val);
 
-  if (val < 999.95) {
+  } else {
 
-    sprintf(tmp, "%0.01f", val);
-    return tmp;
+    DI(buf, len, (u64)val);
 
   }
 
-  return DI((u64)val);
+  return buf;
 
 }
 
 /* Describe integer as memory size. */
 
-u8 *DMS(u64 val) {
-
-  static u8 tmp[12][16];
-  static u8 cur;
-
-  cur = (cur + 1) % 12;
+u8 *DMS(u8 *buf, size_t len, u64 val) {
 
   /* 0-9999 */
   CHK_FORMAT(1, 10000, "%llu B", u64);
@@ -157,17 +146,21 @@ u8 *DMS(u64 val) {
 #undef CHK_FORMAT
 
   /* 100T+ */
-  strcpy(tmp[cur], "infty");
-  return tmp[cur];
+  strncpy(buf, "infty", len - 1);
+  buf[len - 1] = '\0';
+
+  return buf;
 
 }
 
-/* Describe time delta as string. */
+/* Describe time delta as string.
+   Returns a pointer to buf for convenience. */
 
-void DTD(u8 *buf, size_t len, u64 cur_ms, u64 event_ms) {
+u8 *DTD(u8 *buf, size_t len, u64 cur_ms, u64 event_ms) {
 
   u64 delta;
   s32 t_d, t_h, t_m, t_s;
+  u8  int_buf[16];
 
   if (!event_ms) snprintf(buf, len, "none seen yet");
 
@@ -178,7 +171,10 @@ void DTD(u8 *buf, size_t len, u64 cur_ms, u64 event_ms) {
   t_m = (delta / 1000 / 60) % 60;
   t_s = (delta / 1000) % 60;
 
-  snprintf(buf, len, "%s days, %d hrs, %d min, %d sec", DI(t_d), t_h, t_m, t_s);
+  DI(int_buf, sizeof(int_buf), t_d);
+  snprintf(buf, len, "%s days, %d hrs, %d min, %d sec", int_buf, t_h, t_m, t_s);
+
+  return buf;
 
 }
 
diff --git a/src/afl-fuzz-mutators.c b/src/afl-fuzz-mutators.c
index 9788da49..032c61fe 100644
--- a/src/afl-fuzz-mutators.c
+++ b/src/afl-fuzz-mutators.c
@@ -196,6 +196,8 @@ u8 trim_case_custom(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
   u32 trim_exec = 0;
   u32 orig_len = q->len;
 
+  u8 int_buf[16];
+
   if (afl->stage_name != afl->stage_name_buf)
     afl->stage_name = afl->stage_name_buf;
   afl->bytes_trim_in += q->len;
@@ -210,7 +212,8 @@ u8 trim_case_custom(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
 
   while (afl->stage_cur < afl->stage_max) {
 
-    snprintf(afl->stage_name_buf, STAGE_BUF_SIZE, "ptrim %s", DI(trim_exec));
+    snprintf(afl->stage_name_buf, STAGE_BUF_SIZE, "ptrim %s",
+             DI(int_buf, sizeof(int_buf), trim_exec));
 
     u32 cksum;
 
diff --git a/src/afl-fuzz-run.c b/src/afl-fuzz-run.c
index 500c5ba2..c8153857 100644
--- a/src/afl-fuzz-run.c
+++ b/src/afl-fuzz-run.c
@@ -603,6 +603,8 @@ u8 trim_case(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
   u32 remove_len;
   u32 len_p2;
 
+  u8 int_bufs[2][16];
+
   /* Although the trimmer will be less useful when variable behavior is
      detected, it will still work to some extent, so we don't check for
      this. */
@@ -626,8 +628,9 @@ u8 trim_case(afl_state_t *afl, struct queue_entry *q, u8 *in_buf) {
 
     u32 remove_pos = remove_len;
 
-    snprintf(afl->stage_name_buf, STAGE_BUF_SIZE, "trim %s/%s", DI(remove_len),
-             DI(remove_len));
+    snprintf(afl->stage_name_buf, STAGE_BUF_SIZE, "trim %s/%s",
+             DI(int_bufs[0], sizeof(int_bufs[0]), remove_len),
+             DI(int_bufs[1], sizeof(int_bufs[1]), remove_len));
 
     afl->stage_cur = 0;
     afl->stage_max = q->len / remove_len;
diff --git a/src/afl-fuzz-stats.c b/src/afl-fuzz-stats.c
index c89820d8..dcd4f542 100644
--- a/src/afl-fuzz-stats.c
+++ b/src/afl-fuzz-stats.c
@@ -201,6 +201,9 @@ void show_stats(afl_state_t *afl) {
   u8  tmp[256];
   u8  time_tmp[64];
 
+  u8 int_buf[16][16];
+#define IB(i) int_buf[(i)], sizeof(int_buf[(i)])
+
   cur_ms = get_cur_time();
 
   /* If not enough time has passed since last UI update, bail out. */
@@ -390,7 +393,7 @@ void show_stats(afl_state_t *afl) {
   DTD(time_tmp, sizeof(time_tmp), cur_ms, afl->start_time);
   SAYF(bV bSTOP "        run time : " cRST "%-33s " bSTG bV bSTOP
                 "  cycles done : %s%-5s " bSTG              bV "\n",
-       time_tmp, tmp, DI(afl->queue_cycle - 1));
+       time_tmp, tmp, DI(IB(0), afl->queue_cycle - 1));
 
   /* We want to warn people about not seeing new paths after a full cycle,
      except when resuming fuzzing or running in non-instrumented mode. */
@@ -417,12 +420,12 @@ void show_stats(afl_state_t *afl) {
   }
 
   SAYF(bSTG bV bSTOP "  total paths : " cRST "%-5s " bSTG bV "\n",
-       DI(afl->queued_paths));
+       DI(IB(0), afl->queued_paths));
 
   /* Highlight crashes in red if found, denote going over the KEEP_UNIQUE_CRASH
      limit with a '+' appended to the count. */
 
-  sprintf(tmp, "%s%s", DI(afl->unique_crashes),
+  sprintf(tmp, "%s%s", DI(IB(0), afl->unique_crashes),
           (afl->unique_crashes >= KEEP_UNIQUE_CRASH) ? "+" : "");
 
   DTD(time_tmp, sizeof(time_tmp), cur_ms, afl->last_crash_time);
@@ -430,7 +433,7 @@ void show_stats(afl_state_t *afl) {
                 " uniq crashes : %s%-6s" bSTG               bV "\n",
        time_tmp, afl->unique_crashes ? cLRD : cRST, tmp);
 
-  sprintf(tmp, "%s%s", DI(afl->unique_hangs),
+  sprintf(tmp, "%s%s", DI(IB(0), afl->unique_hangs),
           (afl->unique_hangs >= KEEP_UNIQUE_HANG) ? "+" : "");
 
   DTD(time_tmp, sizeof(time_tmp), cur_ms, afl->last_hang_time);
@@ -446,7 +449,7 @@ void show_stats(afl_state_t *afl) {
      together, but then cram them into a fixed-width field - so we need to
      put them in a temporary buffer first. */
 
-  sprintf(tmp, "%s%s%u (%0.01f%%)", DI(afl->current_entry),
+  sprintf(tmp, "%s%s%u (%0.01f%%)", DI(IB(0), afl->current_entry),
           afl->queue_cur->favored ? "." : "*", afl->queue_cur->fuzz_level,
           ((double)afl->current_entry * 100) / afl->queued_paths);
 
@@ -460,7 +463,7 @@ void show_stats(afl_state_t *afl) {
                          : ((t_bytes < 200 && !afl->dumb_mode) ? cPIN : cRST),
        tmp);
 
-  sprintf(tmp, "%s (%0.02f%%)", DI(afl->cur_skipped_paths),
+  sprintf(tmp, "%s (%0.02f%%)", DI(IB(0), afl->cur_skipped_paths),
           ((double)afl->cur_skipped_paths * 100) / afl->queued_paths);
 
   SAYF(bV bSTOP " paths timed out : " cRST "%-16s " bSTG bV, tmp);
@@ -473,7 +476,7 @@ void show_stats(afl_state_t *afl) {
        " stage progress " bSTG bH10 bH5 bH2 bH2 bX bH bSTOP cCYA
        " findings in depth " bSTG bH10 bH5 bH2 bH2          bVL "\n");
 
-  sprintf(tmp, "%s (%0.02f%%)", DI(afl->queued_favored),
+  sprintf(tmp, "%s (%0.02f%%)", DI(IB(0), afl->queued_favored),
           ((double)afl->queued_favored) * 100 / afl->queued_paths);
 
   /* Yeah... it's still going on... halp? */
@@ -484,37 +487,38 @@ void show_stats(afl_state_t *afl) {
 
   if (!afl->stage_max) {
 
-    sprintf(tmp, "%s/-", DI(afl->stage_cur));
+    sprintf(tmp, "%s/-", DI(IB(0), afl->stage_cur));
 
   } else {
 
-    sprintf(tmp, "%s/%s (%0.02f%%)", DI(afl->stage_cur), DI(afl->stage_max),
+    sprintf(tmp, "%s/%s (%0.02f%%)", DI(IB(0), afl->stage_cur),
+            DI(IB(1), afl->stage_max),
             ((double)afl->stage_cur) * 100 / afl->stage_max);
 
   }
 
   SAYF(bV bSTOP " stage execs : " cRST "%-21s" bSTG bV bSTOP, tmp);
 
-  sprintf(tmp, "%s (%0.02f%%)", DI(afl->queued_with_cov),
+  sprintf(tmp, "%s (%0.02f%%)", DI(IB(0), afl->queued_with_cov),
           ((double)afl->queued_with_cov) * 100 / afl->queued_paths);
 
   SAYF("  new edges on : " cRST "%-22s" bSTG bV "\n", tmp);
 
-  sprintf(tmp, "%s (%s%s unique)", DI(afl->total_crashes),
-          DI(afl->unique_crashes),
+  sprintf(tmp, "%s (%s%s unique)", DI(IB(0), afl->total_crashes),
+          DI(IB(1), afl->unique_crashes),
           (afl->unique_crashes >= KEEP_UNIQUE_CRASH) ? "+" : "");
 
   if (afl->crash_mode) {
 
     SAYF(bV bSTOP " total execs : " cRST "%-20s " bSTG bV bSTOP
                   "   new crashes : %s%-22s" bSTG         bV "\n",
-         DI(afl->total_execs), afl->unique_crashes ? cLRD : cRST, tmp);
+         DI(IB(0), afl->total_execs), afl->unique_crashes ? cLRD : cRST, tmp);
 
   } else {
 
     SAYF(bV bSTOP " total execs : " cRST "%-20s " bSTG bV bSTOP
                   " total crashes : %s%-22s" bSTG         bV "\n",
-         DI(afl->total_execs), afl->unique_crashes ? cLRD : cRST, tmp);
+         DI(IB(0), afl->total_execs), afl->unique_crashes ? cLRD : cRST, tmp);
 
   }
 
@@ -522,21 +526,21 @@ void show_stats(afl_state_t *afl) {
 
   if (afl->stats_avg_exec < 100) {
 
-    sprintf(tmp, "%s/sec (%s)", DF(afl->stats_avg_exec),
-            afl->stats_avg_exec < 20 ? "zzzz..." : "slow!");
+    snprintf(tmp, sizeof(tmp), "%s/sec (%s)", DF(IB(0), afl->stats_avg_exec),
+             afl->stats_avg_exec < 20 ? "zzzz..." : "slow!");
 
     SAYF(bV bSTOP "  exec speed : " cLRD "%-20s ", tmp);
 
   } else {
 
-    sprintf(tmp, "%s/sec", DF(afl->stats_avg_exec));
+    snprintf(tmp, sizeof(tmp), "%s/sec", DF(IB(0), afl->stats_avg_exec));
     SAYF(bV bSTOP "  exec speed : " cRST "%-20s ", tmp);
 
   }
 
-  sprintf(tmp, "%s (%s%s unique)", DI(afl->total_tmouts),
-          DI(afl->unique_tmouts),
-          (afl->unique_hangs >= KEEP_UNIQUE_HANG) ? "+" : "");
+  snprintf(tmp, sizeof(tmp), "%s (%s%s unique)", DI(IB(0), afl->total_tmouts),
+           DI(IB(1), afl->unique_tmouts),
+           (afl->unique_hangs >= KEEP_UNIQUE_HANG) ? "+" : "");
 
   SAYF(bSTG bV bSTOP "  total tmouts : " cRST "%-22s" bSTG bV "\n", tmp);
 
@@ -548,74 +552,84 @@ void show_stats(afl_state_t *afl) {
 
   if (afl->skip_deterministic) {
 
-    strcpy(tmp, "n/a, n/a, n/a");
+    strncpy(tmp, "n/a, n/a, n/a", sizeof(tmp) - 1);
+    tmp[sizeof(tmp) - 1] = '\0';
 
   } else {
 
-    sprintf(
-        tmp, "%s/%s, %s/%s, %s/%s", DI(afl->stage_finds[STAGE_FLIP1]),
-        DI(afl->stage_cycles[STAGE_FLIP1]), DI(afl->stage_finds[STAGE_FLIP2]),
-        DI(afl->stage_cycles[STAGE_FLIP2]), DI(afl->stage_finds[STAGE_FLIP4]),
-        DI(afl->stage_cycles[STAGE_FLIP4]));
+    snprintf(tmp, sizeof(tmp), "%s/%s, %s/%s, %s/%s",
+             DI(IB(0), afl->stage_finds[STAGE_FLIP1]),
+             DI(IB(1), afl->stage_cycles[STAGE_FLIP1]),
+             DI(IB(2), afl->stage_finds[STAGE_FLIP2]),
+             DI(IB(3), afl->stage_cycles[STAGE_FLIP2]),
+             DI(IB(3), afl->stage_finds[STAGE_FLIP4]),
+             DI(IB(5), afl->stage_cycles[STAGE_FLIP4]));
 
   }
 
   SAYF(bV bSTOP "   bit flips : " cRST "%-36s " bSTG bV bSTOP
                 "    levels : " cRST "%-10s" bSTG       bV "\n",
-       tmp, DI(afl->max_depth));
+       tmp, DI(IB(0), afl->max_depth));
 
   if (!afl->skip_deterministic)
-    sprintf(
-        tmp, "%s/%s, %s/%s, %s/%s", DI(afl->stage_finds[STAGE_FLIP8]),
-        DI(afl->stage_cycles[STAGE_FLIP8]), DI(afl->stage_finds[STAGE_FLIP16]),
-        DI(afl->stage_cycles[STAGE_FLIP16]), DI(afl->stage_finds[STAGE_FLIP32]),
-        DI(afl->stage_cycles[STAGE_FLIP32]));
+    snprintf(tmp, sizeof(tmp), "%s/%s, %s/%s, %s/%s",
+             DI(IB(0), afl->stage_finds[STAGE_FLIP8]),
+             DI(IB(1), afl->stage_cycles[STAGE_FLIP8]),
+             DI(IB(2), afl->stage_finds[STAGE_FLIP16]),
+             DI(IB(3), afl->stage_cycles[STAGE_FLIP16]),
+             DI(IB(4), afl->stage_finds[STAGE_FLIP32]),
+             DI(IB(5), afl->stage_cycles[STAGE_FLIP32]));
 
   SAYF(bV bSTOP "  byte flips : " cRST "%-36s " bSTG bV bSTOP
                 "   pending : " cRST "%-10s" bSTG       bV "\n",
-       tmp, DI(afl->pending_not_fuzzed));
+       tmp, DI(IB(0), afl->pending_not_fuzzed));
 
   if (!afl->skip_deterministic)
-    sprintf(tmp, "%s/%s, %s/%s, %s/%s", DI(afl->stage_finds[STAGE_ARITH8]),
-            DI(afl->stage_cycles[STAGE_ARITH8]),
-            DI(afl->stage_finds[STAGE_ARITH16]),
-            DI(afl->stage_cycles[STAGE_ARITH16]),
-            DI(afl->stage_finds[STAGE_ARITH32]),
-            DI(afl->stage_cycles[STAGE_ARITH32]));
+    snprintf(tmp, sizeof(tmp), "%s/%s, %s/%s, %s/%s",
+             DI(IB(0), afl->stage_finds[STAGE_ARITH8]),
+             DI(IB(1), afl->stage_cycles[STAGE_ARITH8]),
+             DI(IB(2), afl->stage_finds[STAGE_ARITH16]),
+             DI(IB(3), afl->stage_cycles[STAGE_ARITH16]),
+             DI(IB(4), afl->stage_finds[STAGE_ARITH32]),
+             DI(IB(5), afl->stage_cycles[STAGE_ARITH32]));
 
   SAYF(bV bSTOP " arithmetics : " cRST "%-36s " bSTG bV bSTOP
                 "  pend fav : " cRST "%-10s" bSTG       bV "\n",
-       tmp, DI(afl->pending_favored));
+       tmp, DI(IB(0), afl->pending_favored));
 
   if (!afl->skip_deterministic)
-    sprintf(tmp, "%s/%s, %s/%s, %s/%s", DI(afl->stage_finds[STAGE_INTEREST8]),
-            DI(afl->stage_cycles[STAGE_INTEREST8]),
-            DI(afl->stage_finds[STAGE_INTEREST16]),
-            DI(afl->stage_cycles[STAGE_INTEREST16]),
-            DI(afl->stage_finds[STAGE_INTEREST32]),
-            DI(afl->stage_cycles[STAGE_INTEREST32]));
+    sprintf(tmp, "%s/%s, %s/%s, %s/%s",
+            DI(IB(0), afl->stage_finds[STAGE_INTEREST8]),
+            DI(IB(1), afl->stage_cycles[STAGE_INTEREST8]),
+            DI(IB(2), afl->stage_finds[STAGE_INTEREST16]),
+            DI(IB(3), afl->stage_cycles[STAGE_INTEREST16]),
+            DI(IB(4), afl->stage_finds[STAGE_INTEREST32]),
+            DI(IB(5), afl->stage_cycles[STAGE_INTEREST32]));
 
   SAYF(bV bSTOP "  known ints : " cRST "%-36s " bSTG bV bSTOP
                 " own finds : " cRST "%-10s" bSTG       bV "\n",
-       tmp, DI(afl->queued_discovered));
+       tmp, DI(IB(0), afl->queued_discovered));
 
   if (!afl->skip_deterministic)
-    sprintf(tmp, "%s/%s, %s/%s, %s/%s", DI(afl->stage_finds[STAGE_EXTRAS_UO]),
-            DI(afl->stage_cycles[STAGE_EXTRAS_UO]),
-            DI(afl->stage_finds[STAGE_EXTRAS_UI]),
-            DI(afl->stage_cycles[STAGE_EXTRAS_UI]),
-            DI(afl->stage_finds[STAGE_EXTRAS_AO]),
-            DI(afl->stage_cycles[STAGE_EXTRAS_AO]));
+    snprintf(tmp, sizeof(tmp), "%s/%s, %s/%s, %s/%s",
+             DI(IB(0), afl->stage_finds[STAGE_EXTRAS_UO]),
+             DI(IB(1), afl->stage_cycles[STAGE_EXTRAS_UO]),
+             DI(IB(2), afl->stage_finds[STAGE_EXTRAS_UI]),
+             DI(IB(3), afl->stage_cycles[STAGE_EXTRAS_UI]),
+             DI(IB(4), afl->stage_finds[STAGE_EXTRAS_AO]),
+             DI(IB(5), afl->stage_cycles[STAGE_EXTRAS_AO]));
 
   SAYF(bV bSTOP "  dictionary : " cRST "%-36s " bSTG bV bSTOP
                 "  imported : " cRST "%-10s" bSTG       bV "\n",
-       tmp, afl->sync_id ? DI(afl->queued_imported) : (u8 *)"n/a");
+       tmp, afl->sync_id ? DI(IB(0), afl->queued_imported) : (u8 *)"n/a");
 
-  sprintf(
-      tmp, "%s/%s, %s/%s, %s/%s", DI(afl->stage_finds[STAGE_HAVOC]),
-      DI(afl->stage_cycles[STAGE_HAVOC]), DI(afl->stage_finds[STAGE_SPLICE]),
-      DI(afl->stage_cycles[STAGE_SPLICE]), DI(afl->stage_finds[STAGE_RADAMSA]),
-      DI(afl->stage_cycles[STAGE_RADAMSA]));
+  snprintf(tmp, sizeof(tmp), "%s/%s, %s/%s, %s/%s",
+           DI(IB(0), afl->stage_finds[STAGE_HAVOC]),
+           DI(IB(2), afl->stage_cycles[STAGE_HAVOC]),
+           DI(IB(3), afl->stage_finds[STAGE_SPLICE]),
+           DI(IB(4), afl->stage_cycles[STAGE_SPLICE]),
+           DI(IB(5), afl->stage_finds[STAGE_RADAMSA]),
+           DI(IB(6), afl->stage_cycles[STAGE_RADAMSA]));
 
   SAYF(bV bSTOP "   havoc/rad : " cRST "%-36s " bSTG bV bSTOP, tmp);
 
@@ -635,24 +649,26 @@ void show_stats(afl_state_t *afl) {
 
   if (afl->shm.cmplog_mode) {
 
-    sprintf(tmp, "%s/%s, %s/%s, %s/%s, %s/%s",
-            DI(afl->stage_finds[STAGE_PYTHON]),
-            DI(afl->stage_cycles[STAGE_PYTHON]),
-            DI(afl->stage_finds[STAGE_CUSTOM_MUTATOR]),
-            DI(afl->stage_cycles[STAGE_CUSTOM_MUTATOR]),
-            DI(afl->stage_finds[STAGE_COLORIZATION]),
-            DI(afl->stage_cycles[STAGE_COLORIZATION]),
-            DI(afl->stage_finds[STAGE_ITS]), DI(afl->stage_cycles[STAGE_ITS]));
+    snprintf(tmp, sizeof(tmp), "%s/%s, %s/%s, %s/%s, %s/%s",
+             DI(IB(0), afl->stage_finds[STAGE_PYTHON]),
+             DI(IB(1), afl->stage_cycles[STAGE_PYTHON]),
+             DI(IB(2), afl->stage_finds[STAGE_CUSTOM_MUTATOR]),
+             DI(IB(3), afl->stage_cycles[STAGE_CUSTOM_MUTATOR]),
+             DI(IB(4), afl->stage_finds[STAGE_COLORIZATION]),
+             DI(IB(5), afl->stage_cycles[STAGE_COLORIZATION]),
+             DI(IB(6), afl->stage_finds[STAGE_ITS]),
+             DI(IB(7), afl->stage_cycles[STAGE_ITS]));
 
     SAYF(bV bSTOP "   custom/rq : " cRST "%-36s " bSTG bVR bH20 bH2 bH bRB "\n",
          tmp);
 
   } else {
 
-    sprintf(tmp, "%s/%s, %s/%s", DI(afl->stage_finds[STAGE_PYTHON]),
-            DI(afl->stage_cycles[STAGE_PYTHON]),
-            DI(afl->stage_finds[STAGE_CUSTOM_MUTATOR]),
-            DI(afl->stage_cycles[STAGE_CUSTOM_MUTATOR]));
+    snprintf(tmp, sizeof(tmp), "%s/%s, %s/%s",
+             DI(IB(0), afl->stage_finds[STAGE_PYTHON]),
+             DI(IB(1), afl->stage_cycles[STAGE_PYTHON]),
+             DI(IB(2), afl->stage_finds[STAGE_CUSTOM_MUTATOR]),
+             DI(IB(3), afl->stage_cycles[STAGE_CUSTOM_MUTATOR]));
 
     SAYF(bV bSTOP "   py/custom : " cRST "%-36s " bSTG bVR bH20 bH2 bH bRB "\n",
          tmp);
@@ -668,7 +684,7 @@ void show_stats(afl_state_t *afl) {
     sprintf(tmp, "%0.02f%%/%s, ",
             ((double)(afl->bytes_trim_in - afl->bytes_trim_out)) * 100 /
                 afl->bytes_trim_in,
-            DI(afl->trim_execs));
+            DI(IB(0), afl->trim_execs));
 
   }
 
@@ -693,8 +709,8 @@ void show_stats(afl_state_t *afl) {
 
   if (afl->mutator) {
 
-    sprintf(tmp, "%s/%s", DI(afl->stage_finds[STAGE_CUSTOM_MUTATOR]),
-            DI(afl->stage_cycles[STAGE_CUSTOM_MUTATOR]));
+    sprintf(tmp, "%s/%s", DI(IB(0), afl->stage_finds[STAGE_CUSTOM_MUTATOR]),
+            DI(IB(1), afl->stage_cycles[STAGE_CUSTOM_MUTATOR]));
     SAYF(bV bSTOP " custom mut. : " cRST "%-36s " bSTG bV RESET_G1, tmp);
 
   } else {
@@ -749,6 +765,8 @@ void show_stats(afl_state_t *afl) {
   /* Last line */
   SAYF(SET_G1 "\n" bSTG bLB bH30 bH20 bH2 bRB bSTOP cRST RESET_G1);
 
+#undef IB
+
   /* Hallelujah! */
 
   fflush(0);
@@ -767,6 +785,9 @@ void show_init_stats(afl_state_t *afl) {
   u64                 avg_us = 0;
   u32                 max_len = 0;
 
+  u8 int_buf[12][16];
+#define IB(i) int_buf[(i)], sizeof(int_buf[(i)])
+
   if (afl->total_cal_cycles) avg_us = afl->total_cal_us / afl->total_cal_cycles;
 
   while (q) {
@@ -802,10 +823,10 @@ void show_init_stats(afl_state_t *afl) {
 
     if (max_len > 50 * 1024)
       WARNF(cLRD "Some test cases are huge (%s) - see %s/perf_tips.md!",
-            DMS(max_len), doc_path);
+            DMS(IB(0), max_len), doc_path);
     else if (max_len > 10 * 1024)
-      WARNF("Some test cases are big (%s) - see %s/perf_tips.md.", DMS(max_len),
-            doc_path);
+      WARNF("Some test cases are big (%s) - see %s/perf_tips.md.",
+            DMS(IB(0), max_len), doc_path);
 
     if (afl->useless_at_start && !afl->in_bitmap)
       WARNF(cLRD "Some test cases look useless. Consider using a smaller set.");
@@ -829,7 +850,7 @@ void show_init_stats(afl_state_t *afl) {
       max_bits,
       ((double)afl->total_bitmap_size) /
           (afl->total_bitmap_entries ? afl->total_bitmap_entries : 1),
-      DI(min_us), DI(max_us), DI(avg_us));
+      DI(IB(0), min_us), DI(IB(1), max_us), DI(IB(2), avg_us));
 
   if (!afl->timeout_given) {
 
@@ -873,6 +894,7 @@ void show_init_stats(afl_state_t *afl) {
     afl->hang_tmout = MIN(EXEC_TIMEOUT, afl->fsrv.exec_tmout * 2 + 100);
 
   OKF("All set and ready to roll!");
+#undef IB
 
 }