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small enhancements and code-format

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This commit is contained in:
van Hauser
2020-04-02 16:41:33 +02:00
parent 26e45e41ed
commit 7114663f52
4 changed files with 40 additions and 33 deletions
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6
include/afl-fuzz.h
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@ -935,13 +935,13 @@ u8 input_to_state_stage(afl_state_t *afl, u8 *orig_buf, u8 *buf, u32 len,
static inline u32 rand_below(afl_state_t *afl, u32 limit) {
#ifdef HAVE_ARC4RANDOM
if (afl->fixed_seed) { return random() % limit; }
if (unlikely(afl->fixed_seed)) { return random() % limit; }
/* The boundary not being necessarily a power of 2,
we need to ensure the result uniformity. */
return arc4random_uniform(limit);
#else
if (!afl->fixed_seed && unlikely(!afl->rand_cnt--)) {
if (unlikely(!afl->rand_cnt--) && likely(!afl->fixed_seed)) {
ck_read(afl->fsrv.dev_urandom_fd, &afl->rand_seed, sizeof(afl->rand_seed),
"/dev/urandom");
@ -957,7 +957,7 @@ static inline u32 rand_below(afl_state_t *afl, u32 limit) {
static inline u32 get_rand_seed(afl_state_t *afl) {
if (afl->fixed_seed) return (u32)afl->init_seed;
if (unlikely(afl->fixed_seed)) return (u32)afl->init_seed;
return afl->rand_seed[0];
}