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/*
* Support for PCRE regex variant
*
* Copyright (C) 2015 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
* Copyright (C) 2007-2013 Sourcefire, Inc.
* All Rights Reserved.
*
* Authors: Kevin Lin
*
* 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 _REGEX_PCRE_H_
#define _REGEX_PCRE_H_
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#if HAVE_PCRE
#include <pcre.h>
#include "cltypes.h"
#include "mpool.h"
/* used for setting overrides */
#define CLI_PCREMATCH_NOOFFSETOVERRIDE -1
/* must be multiple of 3 */
#define OVECCOUNT 300
struct cli_pcre_data {
pcre *re; /* compiled pcre regex */
pcre_extra *ex; /* pcre extra data - limits */
int options; /* pcre options */
char *expression; /* copied regular expression */
uint32_t search_offset; /* start offset to search at for pcre_exec */
};
int cli_pcre_init_internal();
int cli_pcre_addoptions(struct cli_pcre_data *pd, const char **opt, int errout);
int cli_pcre_compile(struct cli_pcre_data *pd, long long unsigned match_limit, long long unsigned match_limit_recursion, unsigned int options, int opt_override);
int cli_pcre_match(struct cli_pcre_data *pd, const unsigned char *buffer, uint32_t buflen, int override_offset, int options, int *ovector, size_t ovlen);
void cli_pcre_report(const struct cli_pcre_data *pd, const unsigned char *buffer, uint32_t buflen, int rc, int *ovector, size_t ovlen);
void cli_pcre_free_single(struct cli_pcre_data *pd);
#endif /* HAVE_PCRE */
#endif /*_REGEX_PCRE_H_*/
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