use libblkid to get filesystem type
we can now use libblkid to detect exfat
diff --git a/libblkid/bfs.c b/libblkid/bfs.c
new file mode 100644
index 0000000..8a34c58
--- /dev/null
+++ b/libblkid/bfs.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2009 Red Hat, Inc.
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+#include "superblocks.h"
+
+/*
+ * BFS actually has two different labels in the superblock, each
+ * of them only 6 bytes long. Until we find out what their use
+ * we just ignore them.
+ */
+const struct blkid_idinfo bfs_idinfo =
+{
+ .name = "bfs",
+ .usage = BLKID_USAGE_FILESYSTEM,
+ .magics = {
+ { .magic = "\xce\xfa\xad\x1b", .len = 4 },
+ { NULL }
+ }
+};