fuzzy.h

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#ifndef FUZZY_H
#define FUZZY_H

/*
 * Copyright (C) ManTech International Corporation 2010
 * Copyright (C) Kyrus 2012
 * Copyright (C) 2013 Helmut Grohne <helmut@subdivi.de>
 *
 * $Id$
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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 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 St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Earlier versions of this code can be found at:
 *     http://ssdeep.sf.net/
 */




#include <stdint.h>
#include <stdio.h>

#ifdef __cplusplus
extern "C" {
#endif

#define FUZZY_FLAG_ELIMSEQ 0x1u

#define FUZZY_FLAG_NOTRUNC 0x2u

struct fuzzy_state;

extern /*@only@*/ /*@null@*/ struct fuzzy_state *fuzzy_new(void);

extern /*@only@*/ /*@null@*/ struct fuzzy_state *fuzzy_clone(const struct fuzzy_state *state);

extern int fuzzy_set_total_input_length(struct fuzzy_state *state, uint_least64_t total_fixed_length);

extern int fuzzy_update(struct fuzzy_state *state,
                        const unsigned char *buffer,
                        size_t buffer_size);

extern int fuzzy_digest(const struct fuzzy_state *state,
                        /*@out@*/ char *result,
                        unsigned int flags);

extern void fuzzy_free(/*@only@*/ struct fuzzy_state *state);

extern int fuzzy_hash_buf(const unsigned char *buf,
                          uint32_t buf_len,
                          /*@out@*/ char *result);

extern int fuzzy_hash_file(FILE *handle, /*@out@*/ char *result);

extern int fuzzy_hash_stream(FILE *handle, /*@out@*/ char *result);

extern int fuzzy_hash_filename(const char *filename, /*@out@*/ char * result);

extern int fuzzy_compare(const char *sig1, const char *sig2);

#define SPAMSUM_LENGTH 64

#define FUZZY_MAX_RESULT (2 * SPAMSUM_LENGTH + 20)

#ifdef __cplusplus
}
#endif

#endif