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error handling for custom mutators

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This commit is contained in:
Dominik Maier
2020-03-28 12:58:56 +01:00
parent cda56ca129
commit 81873d97f8
6 changed files with 54 additions and 36 deletions
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6
include/alloc-inl.h
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@ -767,10 +767,10 @@ static inline void TRK_ck_free(void *ptr, const char *file, const char *func,
#endif /* _WANT_ORIGINAL_AFL_ALLOC */
/* This function calculates the lowest power of 2 greater or equal its argument.
/* This function calculates the next power of 2 greater or equal its argument.
@return The rounded up power of 2 (if no overflow) or 0 on overflow.
*/
static inline size_t powerOf2Ceil(size_t in) {
static inline size_t next_pow2(size_t in) {
if (in == 0 || in > (size_t)-1) return 0; /* avoid undefined behaviour under-/overflow */
size_t out = in - 1;
out |= out >> 1;
@ -801,7 +801,7 @@ static inline void *ck_maybe_grow(void **buf, size_t *size,
if (size_needed < INITIAL_GROWTH_SIZE) size_needed = INITIAL_GROWTH_SIZE;
/* grow exponentially */
size_t next_size = powerOf2Ceil(size_needed);
size_t next_size = next_pow2(size_needed);
/* handle overflow */
if (!next_size) {