use libblkid to get filesystem type
we can now use libblkid to detect exfat
diff --git a/libblkid/ultrix.c b/libblkid/ultrix.c
new file mode 100644
index 0000000..853ae6e
--- /dev/null
+++ b/libblkid/ultrix.c
@@ -0,0 +1,96 @@
+/*
+ * uktrix partition parsing code
+ *
+ * Copyright (C) 2010 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "partitions.h"
+
+#define ULTRIX_MAXPARTITIONS 8
+
+#define ULTRIX_MAGIC 0x032957
+#define ULTRIX_MAGIC_STR "\x02\x29\x57"
+
+/* sector with partition table */
+#define ULTRIX_SECTOR ((16384 - sizeof(struct ultrix_disklabel)) >> 9)
+/* position of partition table within ULTRIX_SECTOR */
+#define ULTRIX_OFFSET (512 - sizeof(struct ultrix_disklabel))
+
+struct ultrix_disklabel {
+ int32_t pt_magic; /* magic no. indicating part. info exits */
+ int32_t pt_valid; /* set by driver if pt is current */
+ struct pt_info {
+ int32_t pi_nblocks; /* no. of sectors */
+ uint32_t pi_blkoff; /* block offset for start */
+ } pt_part[ULTRIX_MAXPARTITIONS];
+} __attribute__((packed));
+
+
+static int probe_ultrix_pt(blkid_probe pr,
+ const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+ unsigned char *data;
+ struct ultrix_disklabel *l;
+ blkid_parttable tab = NULL;
+ blkid_partlist ls;
+ int i;
+
+ data = blkid_probe_get_sector(pr, ULTRIX_SECTOR);
+ if (!data)
+ goto nothing;
+
+ l = (struct ultrix_disklabel *) (data + ULTRIX_OFFSET);
+
+ if (l->pt_magic != ULTRIX_MAGIC || l->pt_valid != 1)
+ goto nothing;
+
+ if (blkid_probe_set_magic(pr, (ULTRIX_SECTOR << 9) + ULTRIX_OFFSET,
+ sizeof(ULTRIX_MAGIC_STR) - 1,
+ (unsigned char *) ULTRIX_MAGIC_STR))
+ goto err;
+
+ if (blkid_partitions_need_typeonly(pr))
+ /* caller does not ask for details about partitions */
+ return 0;
+
+ ls = blkid_probe_get_partlist(pr);
+ if (!ls)
+ goto err;
+
+ tab = blkid_partlist_new_parttable(ls, "ultrix", 0);
+ if (!tab)
+ goto err;
+
+ for (i = 0; i < ULTRIX_MAXPARTITIONS; i++) {
+ if (!l->pt_part[i].pi_nblocks)
+ blkid_partlist_increment_partno(ls);
+ else {
+ if (!blkid_partlist_add_partition(ls, tab,
+ l->pt_part[i].pi_blkoff,
+ l->pt_part[i].pi_nblocks))
+ goto err;
+ }
+ }
+
+ return 0;
+nothing:
+ return 1;
+err:
+ return -1;
+}
+
+const struct blkid_idinfo ultrix_pt_idinfo =
+{
+ .name = "ultrix",
+ .probefunc = probe_ultrix_pt,
+ .magics = BLKID_NONE_MAGIC
+};
+