use libblkid to get filesystem type
we can now use libblkid to detect exfat
diff --git a/libblkid/jmicron_raid.c b/libblkid/jmicron_raid.c
new file mode 100644
index 0000000..c708078
--- /dev/null
+++ b/libblkid/jmicron_raid.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ *
+ * Inspired by libvolume_id by
+ * Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "superblocks.h"
+
+struct jm_metadata {
+ int8_t signature[2];
+ uint8_t minor_version;
+ uint8_t major_version;
+ uint16_t checksum;
+};
+
+#define JM_SIGNATURE "JM"
+
+static int probe_jmraid(blkid_probe pr,
+ const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+ uint64_t off;
+ struct jm_metadata *jm;
+
+ if (pr->size < 0x10000)
+ return -1;
+ if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
+ return -1;
+
+ off = ((pr->size / 0x200) - 1) * 0x200;
+ jm = (struct jm_metadata *)
+ blkid_probe_get_buffer(pr,
+ off,
+ sizeof(struct jm_metadata));
+ if (!jm)
+ return -1;
+ if (memcmp(jm->signature, JM_SIGNATURE, sizeof(JM_SIGNATURE) - 1) != 0)
+ return -1;
+ if (blkid_probe_sprintf_version(pr, "%u.%u",
+ jm->major_version, jm->minor_version) != 0)
+ return -1;
+ if (blkid_probe_set_magic(pr, off, sizeof(jm->signature),
+ (unsigned char *) jm->signature))
+ return -1;
+ return 0;
+}
+
+const struct blkid_idinfo jmraid_idinfo = {
+ .name = "jmicron_raid_member",
+ .usage = BLKID_USAGE_RAID,
+ .probefunc = probe_jmraid,
+ .magics = BLKID_NONE_MAGIC
+};
+
+