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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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13
include/afl-fuzz.h
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@ -700,9 +700,10 @@ struct custom_mutator {
* @param data pointer returned in afl_custom_init for this fuzz case
* @param buf Buffer containing the test case
* @param buf_size Size of the test case
* @return The amount of possible iteration steps to trim the input
* @return The amount of possible iteration steps to trim the input.
* Negative on error.
*/
u32 (*afl_custom_init_trim)(void *data, u8 *buf, size_t buf_size);
s32 (*afl_custom_init_trim)(void *data, u8 *buf, size_t buf_size);
/**
* This method is called for each trimming operation. It doesn't have any
@ -733,9 +734,9 @@ struct custom_mutator {
* @param data pointer returned in afl_custom_init for this fuzz case
* @param success Indicates if the last trim operation was successful.
* @return The next trim iteration index (from 0 to the maximum amount of
* steps returned in init_trim)
* steps returned in init_trim). Negative on error.
*/
u32 (*afl_custom_post_trim)(void *data, u8 success);
s32 (*afl_custom_post_trim)(void *data, u8 success);
/**
* Perform a single custom mutation on a given input.
@ -818,8 +819,8 @@ u8 trim_case_custom(afl_state_t *, struct queue_entry *q, u8 *in_buf);
void finalize_py_module(void *);
size_t pre_save_py(void *, u8 *, size_t, u8 **);
u32 init_trim_py(void *, u8 *, size_t);
u32 post_trim_py(void *, u8);
s32 init_trim_py(void *, u8 *, size_t);
s32 post_trim_py(void *, u8);
size_t trim_py(void *, u8 **);
size_t havoc_mutation_py(void *, u8 *, size_t, u8 **, size_t);
u8 havoc_mutation_probability_py(void *);