From bb81fb784e7c855fe230136a4878f68c33d0f98f Mon Sep 17 00:00:00 2001 From: guyf2010 Date: Sun, 13 Nov 2022 14:37:33 +0000 Subject: Add option for random cmplog colorization --- src/afl-fuzz-redqueen.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'src/afl-fuzz-redqueen.c') diff --git a/src/afl-fuzz-redqueen.c b/src/afl-fuzz-redqueen.c index 337f124d..aa0b3210 100644 --- a/src/afl-fuzz-redqueen.c +++ b/src/afl-fuzz-redqueen.c @@ -167,6 +167,13 @@ static u8 get_exec_checksum(afl_state_t *afl, u8 *buf, u32 len, u64 *cksum) { } +/* replace everything with different values */ +static void random_replace(afl_state_t *afl, u8 *buf, u32 len){ + for(u32 i=0; i < len; i++){ + buf[i] = rand_below(afl, 256); + } +} + /* replace everything with different values but stay in the same type */ static void type_replace(afl_state_t *afl, u8 *buf, u32 len) { @@ -293,7 +300,11 @@ static u8 colorization(afl_state_t *afl, u8 *buf, u32 len, memcpy(backup, buf, len); memcpy(changed, buf, len); - type_replace(afl, changed, len); + if (afl->cmplog_random_colorization) { + random_replace(afl, changed, len); + } else { + type_replace(afl, changed, len); + } while ((rng = pop_biggest_range(&ranges)) != NULL && afl->stage_cur < afl->stage_max) { -- cgit 1.4.1