/*
 *  Copyright (C) 2013-2020 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *  Copyright (C) 2007-2013 Sourcefire, Inc.
 *
 *  Authors: Tomasz Kojm
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it 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
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *  MA 02110-1301, USA.
 */

#ifndef __MATCHER_BM_H
#define __MATCHER_BM_H

#include "matcher.h"
#include "filetypes.h"
#include "clamav-types.h"
#include "fmap.h"
#include "others.h"

#define BM_BOUNDARY_EOL 1

struct cli_bm_patt {
    unsigned char *pattern, *prefix;
    char *virname;
    uint32_t offdata[4], offset_min, offset_max;
    struct cli_bm_patt *next;
    uint16_t length, prefix_length;
    uint16_t cnt;
    unsigned char pattern0;
    uint32_t boundary, filesize;
};

struct cli_bm_off {
    uint32_t *offset, *offtab, cnt, pos;
};

cl_error_t cli_bm_addpatt(struct cli_matcher *root, struct cli_bm_patt *pattern, const char *offset);
cl_error_t cli_bm_init(struct cli_matcher *root);
cl_error_t cli_bm_initoff(const struct cli_matcher *root, struct cli_bm_off *data, const struct cli_target_info *info);
void cli_bm_freeoff(struct cli_bm_off *data);
cl_error_t cli_bm_scanbuff(const unsigned char *buffer, uint32_t length, const char **virname, const struct cli_bm_patt **patt, const struct cli_matcher *root, uint32_t offset, const struct cli_target_info *info, struct cli_bm_off *offdata, cli_ctx *ctx);
void cli_bm_free(struct cli_matcher *root);

#endif
