/* Copyright (C) 2020 Open Information Security Foundation

 *

 * You can copy, redistribute or modify this Program under the terms of

 * the GNU General Public License version 2 as published by the Free

 * Software Foundation.

 *

 * 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

 * version 2 along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA.

 */

/**

 * \file

 *

 * \author Jeff Lucovsky <jeff@lucovsky.org>

 */

#include "suricata-common.h"

#include "detect-byte.h"

#include "detect-byte-extract.h"

#include "detect-bytemath.h"

#include "rust.h"

/**

 * \brief Used to retrieve args from BM.

 *

 * \param arg The name of the variable being sought

 * \param s The signature to check for the variable

 * \param index When found, the value of the slot within the byte vars

 *

 * \retval true A match for the variable was found.

 * \retval false

 */

bool DetectByteRetrieveSMVar(const char *arg, const Signature *s, DetectByteIndexType *index)

{

    SigMatch *bed_sm = DetectByteExtractRetrieveSMVar(arg, s);

    if (bed_sm != NULL) {

        *index = ((DetectByteExtractData *)bed_sm->ctx)->local_id;

        return true;

    }

    SigMatch *bmd_sm = DetectByteMathRetrieveSMVar(arg, s);

    if (bmd_sm != NULL) {

        *index = ((DetectByteMathData *)bmd_sm->ctx)->local_id;

        return true;

    }

    return false;

}