int fileio_read_u32(struct fileio *fileio, uint32_t *data);
int fileio_write_u32(struct fileio *fileio, uint32_t data);
-int fileio_size(struct fileio *fileio, int *size);
+int fileio_size(struct fileio *fileio, size_t *size);
#define ERROR_FILEIO_LOCATION_UNKNOWN (-1200)
#define ERROR_FILEIO_NOT_FOUND (-1201)