Update libarchive to 2.4.10. This includes a number of improvements

that I've been working on but put off committing until after the
RELENG_7 branch, including:

* New manpages: cpio.5 mtree.5
* New archive_entry_strmode()
* New archive_entry_link_resolver()
* New read support: mtree format
* Internal API change:  read format auction only runs once
* Running the auction only once allowed simplifying a lot of bid logic.
* Cpio robustness:  search for next header after a sync error
* Support device nodes on ISO9660 images
* Eliminate a lot of unnecessary copies for uncompressed archives
* Corrected handling of new GNU --sparse --posix formats
* Correctly handle a zero-byte write to a compressed archive
* Fixed memory leaks

Many of these improvements were motivated by the upcoming bsdcpio
front-end.

There have also been extensive improvements to the libarchive_test
test harness, which I'll commit separately.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/libarchive/archive_write_disk.c b/lib/libarchive/archive_write_disk.c
index 435522c..8b42811 100644
--- a/lib/libarchive/archive_write_disk.c
+++ b/lib/libarchive/archive_write_disk.c
@@ -421,6 +421,12 @@ _archive_write_header(struct archive *_a, struct archive_entry *entry)
 	/* We've created the object and are ready to pour data into it. */
 	if (ret == ARCHIVE_OK)
 		a->archive.state = ARCHIVE_STATE_DATA;
+	/*
+	 * If it's not open, tell our client not to try writing.
+	 * In particular, dirs, links, etc, don't get written to.
+	 */
+	if (a->fd < 0)
+		archive_entry_set_size(entry, 0);
 done:
 	/* Restore the user's umask before returning. */
 	umask(a->user_umask);