1 #include <stddef.h> 2 #include <stdint.h> 3 #include <stdio.h> 4 #include <stdlib.h> 5 6 #include "fuzz_helpers.h" 7 #include "lz4frame.h" 8 #include "lz4hc.h" 9 10 /* Struct used for maintaining the state of the data */ 11 typedef struct FUZZ_dataProducer_s FUZZ_dataProducer_t; 12 13 /* Returns a data producer state struct. Use for producer initialization. */ 14 FUZZ_dataProducer_t *FUZZ_dataProducer_create(const uint8_t *data, size_t size); 15 16 /* Frees the data producer */ 17 void FUZZ_dataProducer_free(FUZZ_dataProducer_t *producer); 18 19 /* Returns 32 bits from the end of data */ 20 uint32_t FUZZ_dataProducer_retrieve32(FUZZ_dataProducer_t *producer); 21 22 /* Returns value between [min, max] */ 23 uint32_t FUZZ_getRange_from_uint32(uint32_t seed, uint32_t min, uint32_t max); 24 25 /* Combination of above two functions for non adaptive use cases. ie where size is not involved */ 26 uint32_t FUZZ_dataProducer_range32(FUZZ_dataProducer_t *producer, uint32_t min, 27 uint32_t max); 28 29 /* Returns lz4 preferences */ 30 LZ4F_preferences_t FUZZ_dataProducer_preferences(FUZZ_dataProducer_t* producer); 31 32 /* Returns lz4 frame info */ 33 LZ4F_frameInfo_t FUZZ_dataProducer_frameInfo(FUZZ_dataProducer_t* producer); 34 35 /* Returns the size of the remaining bytes of data in the producer */ 36 size_t FUZZ_dataProducer_remainingBytes(FUZZ_dataProducer_t *producer); 37