ossfuzz/compress_fuzzer.cc


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#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include "lz4.h"

#define CHECK(COND)   if (!(COND)) { abort(); }

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
  size_t const compressed_dest_size = LZ4_compressBound(size);
  char *const dest_buffer = (char *)malloc(compressed_dest_size);

  if (dest_buffer != NULL)
  {
    // Allocation succeeded, try compressing the incoming data.
    int result = LZ4_compress_default((const char*)data,
                                      dest_buffer,
                                      size,
                                      compressed_dest_size);
    CHECK(result != 0);

    free(dest_buffer);
  }

  return 0;
}