/*
 * wnix, a Unix-like operating system for WebAssembly applications.
 * Copyright (C) 2025  Xavier Del Campo Romero
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include <iso9660.h>
#include <iso9660/routines.h>
#include <kprintf.h>
#include <stdint.h>
#include <string.h>

int iso9660_check_header(const struct iso9660_magic *const m)
{
    static const struct iso9660_magic em = {{'C', 'D', '0', '0', '1'}};

    if (memcmp(m, &em, sizeof *m))
    {
        const uint8_t *const b = m->id;

        kprintf("Invalid ISO9660 header: "
            "{%hhx, %hhx, %hhx, %hhx, %hhx}\n", b[0], b[1], b[2], b[3], b[4]);
        return -1;
    }

    return 0;
}
