1 files changed, 56 insertions, 0 deletions
diff --git a/extras/volume_id/lib/hpfs.c b/extras/volume_id/lib/hpfs.c
new file mode 100644
index 0000000000..3e9589fcca
--- /dev/null
+++ b/extras/volume_id/lib/hpfs.c
@@ -0,0 +1,56 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ *	This program is free software; you can redistribute it and/or modify it
+ *	under the terms of the GNU General Public License as published by the
+ *	Free Software Foundation version 2 of the License.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+
+#include "libvolume_id.h"
+#include "util.h"
+
+struct hpfs_super
+{
+	uint8_t		magic[4];
+	uint8_t		version;
+} PACKED;
+
+#define HPFS_SUPERBLOCK_OFFSET			0x2000
+
+int volume_id_probe_hpfs(struct volume_id *id, uint64_t off)
+{
+	struct hpfs_super *hs;
+
+	dbg("probing at offset 0x%llx", (unsigned long long) off);
+
+	hs = (struct hpfs_super *) volume_id_get_buffer(id, off + HPFS_SUPERBLOCK_OFFSET, 0x200);
+	if (hs == NULL)
+		return -1;
+
+	if (memcmp(hs->magic, "\x49\xe8\x95\xf9", 4) == 0) {
+		sprintf(id->type_version, "%u", hs->version);
+
+		volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
+		id->type = "hpfs";
+		return 0;
+	}
+
+	return -1;
+}