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Diffstat (limited to 'util-linux/volume_id/hpfs.c')
-rw-r--r--util-linux/volume_id/hpfs.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/util-linux/volume_id/hpfs.c b/util-linux/volume_id/hpfs.c
new file mode 100644
index 000000000..b43fb79b5
--- /dev/null
+++ b/util-linux/volume_id/hpfs.c
@@ -0,0 +1,50 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "volume_id_internal.h"
+
+struct hpfs_super
+{
+ uint8_t magic[4];
+ uint8_t version;
+} __attribute__((__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 = 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;
+}