diff options
Diffstat (limited to 'libarchive/archive_read_support_format_rar5.c')
| -rw-r--r-- | libarchive/archive_read_support_format_rar5.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libarchive/archive_read_support_format_rar5.c b/libarchive/archive_read_support_format_rar5.c index a3cfa72e..cc966a51 100644 --- a/libarchive/archive_read_support_format_rar5.c +++ b/libarchive/archive_read_support_format_rar5.c @@ -3911,6 +3911,13 @@ static int do_unpack(struct archive_read* a, struct rar5* rar, case GOOD: /* fallthrough */ case BEST: + /* No data is returned here. But because a sparse-file aware + * caller (like archive_read_data_into_fd) may treat zero-size + * as a sparse file block, we need to update the offset + * accordingly. At this point the decoder doesn't have any + * pending uncompressed data blocks, so the current position in + * the output file should be last_write_ptr. */ + if (offset) *offset = rar->cstate.last_write_ptr; return uncompress_file(a); default: archive_set_error(&a->archive, |