rc = tar_sparse_decode_header (&file);
for (i = 0; rc && i < file.stat_info->sparse_map_avail; i++)
rc = tar_sparse_extract_region (&file, i);
rc = tar_sparse_decode_header (&file);
for (i = 0; rc && i < file.stat_info->sparse_map_avail; i++)
rc = tar_sparse_extract_region (&file, i);