From e60683a0d553b6488c564863f4e48954944fb0f8 Mon Sep 17 00:00:00 2001
From: bigbiff bigbiff <bigbiff@teamw.in>
Date: Fri, 22 Feb 2013 20:55:50 -0500
Subject: use libblkid to get filesystem type we can now use libblkid to detect
 exfat

---
 libblkid/xfs.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 libblkid/xfs.c

(limited to 'libblkid/xfs.c')

diff --git a/libblkid/xfs.c b/libblkid/xfs.c
new file mode 100644
index 000000000..1399fe13a
--- /dev/null
+++ b/libblkid/xfs.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 1999 by Andries Brouwer
+ * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
+ * Copyright (C) 2001 by Andreas Dilger
+ * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ *
+ * 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 <errno.h>
+#include <ctype.h>
+#include <stdint.h>
+
+#include "superblocks.h"
+
+struct xfs_super_block {
+	unsigned char	xs_magic[4];
+	uint32_t	xs_blocksize;
+	uint64_t	xs_dblocks;
+	uint64_t	xs_rblocks;
+	uint32_t	xs_dummy1[2];
+	unsigned char	xs_uuid[16];
+	uint32_t	xs_dummy2[15];
+	char		xs_fname[12];
+	uint32_t	xs_dummy3[2];
+	uint64_t	xs_icount;
+	uint64_t	xs_ifree;
+	uint64_t	xs_fdblocks;
+} __attribute__((packed));
+
+static int probe_xfs(blkid_probe pr, const struct blkid_idmag *mag)
+{
+	struct xfs_super_block *xs;
+
+	xs = blkid_probe_get_sb(pr, mag, struct xfs_super_block);
+	if (!xs)
+		return -1;
+
+	if (strlen(xs->xs_fname))
+		blkid_probe_set_label(pr, (unsigned char *) xs->xs_fname,
+				sizeof(xs->xs_fname));
+	blkid_probe_set_uuid(pr, xs->xs_uuid);
+	return 0;
+}
+
+const struct blkid_idinfo xfs_idinfo =
+{
+	.name		= "xfs",
+	.usage		= BLKID_USAGE_FILESYSTEM,
+	.probefunc	= probe_xfs,
+	.magics		=
+	{
+		{ .magic = "XFSB", .len = 4 },
+		{ NULL }
+	}
+};
+
-- 
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