use libblkid to get filesystem type
we can now use libblkid to detect exfat
diff --git a/libblkid/swapheader.h b/libblkid/swapheader.h
new file mode 100644
index 0000000..42d521a
--- /dev/null
+++ b/libblkid/swapheader.h
@@ -0,0 +1,28 @@
+#ifndef _SWAPHEADER_H
+#define _SWAPHEADER_H
+
+struct swap_header_v1 {
+        char         bootbits[1024];    /* Space for disklabel etc. */
+	unsigned int version;
+	unsigned int last_page;
+	unsigned int nr_badpages;
+	unsigned int padding[125];
+	unsigned int badpages[1];
+};
+
+
+#define SWAP_UUID_LENGTH 16
+#define SWAP_LABEL_LENGTH 16
+
+struct swap_header_v1_2 {
+	char	      bootbits[1024];    /* Space for disklabel etc. */
+	unsigned int  version;
+	unsigned int  last_page;
+	unsigned int  nr_badpages;
+	unsigned char uuid[SWAP_UUID_LENGTH];
+	char	      volume_name[SWAP_LABEL_LENGTH];
+	unsigned int  padding[117];
+	unsigned int  badpages[1];
+};
+
+#endif /* _SWAPHEADER_H */