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/*
* 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;
}
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