Minor improvement in the mtree bidder.

- During checking NetBSD mtree -D format, if the first character of the last filed in an entry line is '/', fail the test bidding mtree format.
libarchive · Sep 26, 2012 · 66b1a0b · 66b1a0b
1 parent d44b4a9
commit 66b1a0b
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/libarchive/archive_read_support_format_mtree.c b/libarchive/archive_read_support_format_mtree.c
@@ -548,6 +548,10 @@ bid_entry(const char *p, ssize_t len, ssize_t nl, int *last_is_path)
 		}
 		if (name_len == 0 || slash == 0)
 			return (-1);
+		/* If '/' is placed at the first in this field, this is not
+		 * a valid filename. */
+		if (pb[1] == '/')
+			return (-1);
 		ll = len - nl - name_len;
 		pp = p;
 		*last_is_path = 1;