archive_write_shar_header: free shar->last_dir before replacement

diff --git a/libarchive/archive_write_set_format_shar.c b/libarchive/archive_write_set_format_shar.c
index be9f78ce96cdf0ac23a75b5f9d0eff5eb49cc5fb..4946fef331cd5ceabfe85372e32b209e9a5ee871 100644 (file)
--- a/libarchive/archive_write_set_format_shar.c
+++ b/libarchive/archive_write_set_format_shar.c
@@ -240,6 +240,7 @@ archive_write_shar_header(struct archive_write *a, struct archive_entry *entry)
                                shar_quote(&shar->work, p, 1);
                                archive_strcat(&shar->work,
                                    " > /dev/null 2>&1\n");
+                               free(shar->last_dir);
                                shar->last_dir = p;
                        }
                } else {