Function file_to_buffer

nanofi/src/api/nanofi.cpp:46–75

Just an internal utility func., not to be published via API!

// Just an internal utility func., not to be published via API!
file_buffer file_to_buffer(const char *path) {
  file_buffer fb;
  fb.buffer = nullptr;
  fb.file_len = 0;

  NULL_CHECK(fb, path);
  FILE *fileptr;
  uint8_t *buffer;
  size_t filelen;

  fileptr = fopen(path, "rb");
  NULL_CHECK(fb, fileptr);

  fseek(fileptr, 0, SEEK_END);
  filelen = ftell(fileptr);
  rewind(fileptr);

  buffer = (uint8_t *)malloc((filelen+1)*sizeof(uint8_t));  // Enough memory for file + \0
  const size_t read_result = fread(buffer, filelen, 1, fileptr);
  fclose(fileptr);

  if (read_result != 1) {
    free(buffer);
    return fb;
  }

  fb.buffer = buffer;
  fb.file_len = filelen;
  return fb;
}

int API_INITIALIZER::initialized = initialize_api();