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/*
* volume_id - reads filesystem label and uuid
*
* Copyright (C) 2004 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, either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include "libvolume_id.h"
#include "libvolume_id-private.h"
struct romfs_super {
uint8_t magic[8];
uint32_t size;
uint32_t checksum;
uint8_t name[0];
} PACKED;
int volume_id_probe_romfs(struct volume_id *id, uint64_t off, uint64_t size)
{
struct romfs_super *rfs;
info("probing at offset 0x%llx\n", (unsigned long long) off);
rfs = (struct romfs_super *) volume_id_get_buffer(id, off, 0x200);
if (rfs == NULL)
return -1;
if (memcmp(rfs->magic, "-rom1fs-", 4) == 0) {
size_t len = strlen((char *)rfs->name);
if (len) {
volume_id_set_label_raw(id, rfs->name, len);
volume_id_set_label_string(id, rfs->name, len);
}
volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
id->type = "romfs";
return 0;
}
return -1;
}
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