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suricata/src/datasets-sha256.c

65 lines
1.6 KiB
C

/* Copyright (C) 2017-2019 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 Victor Julien <victor@inliniac.net>
*/
#include "suricata-common.h"
#include "conf.h"
#include "datasets.h"
#include "datasets-sha256.h"
#include "util-thash.h"
#include "util-print.h"
#include "util-base64.h" // decode base64
int Sha256StrSet(void *dst, void *src)
{
Sha256Type *src_s = src;
Sha256Type *dst_s = dst;
memcpy(dst_s->sha256, src_s->sha256, sizeof(dst_s->sha256));
dst_s->rep = src_s->rep;
return 0;
}
bool Sha256StrCompare(void *a, void *b)
{
Sha256Type *as = a;
Sha256Type *bs = b;
return (memcmp(as->sha256, bs->sha256, sizeof(as->sha256)) == 0);
}
uint32_t Sha256StrHash(void *s)
{
Sha256Type *str = s;
uint32_t hash = 5381;
for (int i = 0; i < (int)sizeof(str->sha256); i++) {
hash = ((hash << 5) + hash) + str->sha256[i]; /* hash * 33 + c */
}
return hash;
}
// data stays in hash
void Sha256StrFree(void *s)
{
// no dynamic data
}