/*

 * This file is part of the SSH Library

 *

 * Copyright (c) 2020 by Anderson Toshiyuki Sasaki - Red Hat, Inc.

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#include "config.h"

#include "libssh/crypto.h"

int secure_memcmp(const void *s1, const void *s2, size_t n)

{

    size_t i;

    uint8_t status = 0;

    const uint8_t *p1 = s1;

    const uint8_t *p2 = s2;

    for (i = 0; i < n; i++) {

        status |= (p1[i] ^ p2[i]);

    }

    return (status != 0);

}