78 lines
1.6 KiB
C++
78 lines
1.6 KiB
C++
#include "hb-fuzzer.hh"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "hb.h"
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enum set_operation_t : uint8_t
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{
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INTERSECT,
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UNION,
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SUBTRACT,
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SYMMETRIC_DIFFERENCE
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};
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struct instructions_t
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{
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set_operation_t operation;
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uint32_t first_set_size;
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};
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static hb_set_t* create_set (const uint32_t* value_array, int count)
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{
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hb_set_t* set = hb_set_create ();
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for (int i = 0; i < count; i++) {
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hb_set_add (set, value_array[i]);
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}
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return set;
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}
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extern "C" int LLVMFuzzerTestOneInput (const uint8_t *data, size_t size)
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{
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if (size < sizeof(instructions_t*))
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return 0;
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const instructions_t* instructions = reinterpret_cast<const instructions_t*> (data);
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data += sizeof(instructions_t);
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size -= sizeof(instructions_t);
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const uint32_t* values = reinterpret_cast<const uint32_t*> (data);
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size = size / sizeof(uint32_t);
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if (size < instructions->first_set_size)
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return 0;
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hb_set_t* set_a = create_set (values, instructions->first_set_size);
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values += instructions->first_set_size;
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size -= instructions->first_set_size;
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hb_set_t* set_b = create_set (values, size);
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switch (instructions->operation)
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{
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case INTERSECT:
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hb_set_intersect (set_a, set_b);
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break;
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case UNION:
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hb_set_union (set_a, set_b);
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break;
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case SUBTRACT:
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hb_set_subtract (set_a, set_b);
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break;
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case SYMMETRIC_DIFFERENCE:
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hb_set_symmetric_difference (set_a, set_b);
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break;
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default:
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break;
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}
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hb_set_destroy (set_a);
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hb_set_destroy (set_b);
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return 0;
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}
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