Let archive_entry_clear() accept a NULL pointer and simply do nothing.

In particular, this allows archive_entry_free() to work correctly
for a NULL pointer, which makes it parallel with free(3).

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/libarchive/archive_entry.c b/lib/libarchive/archive_entry.c
index 8ca69fe..cc7e4d3 100644
--- a/lib/libarchive/archive_entry.c
+++ b/lib/libarchive/archive_entry.c
@@ -307,6 +307,8 @@ aes_copy_wcs_len(struct aes *aes, const wchar_t *wcs, size_t len)
 struct archive_entry *
 archive_entry_clear(struct archive_entry *entry)
 {
+	if (entry == NULL)
+		return (NULL);
 	aes_clean(&entry->ae_fflags_text);
 	aes_clean(&entry->ae_gname);
 	aes_clean(&entry->ae_hardlink);