/* 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-string.h"

#include "util-thash.h"

#include "util-print.h"

#include "util-base64.h"    // decode base64

#include "util-hash-lookup3.h"

#include "rust.h"

#if 0

static int StringAsAscii(const void *s, char *out, size_t out_size)

{

    const StringType *str = s;

    uint32_t offset = 0;

    PrintRawUriBuf(out, &offset, out_size, str->ptr, str->len);

    if (out[0] == '\0')

        return 0;

    strlcat(out, "\n", out_size);

    return strlen(out);

}

#endif

int StringAsBase64(const void *s, char *out, size_t out_size)

{

    const StringType *str = s;

    unsigned long len = Base64EncodeBufferSize(str->len);

    if (len + 2 > out_size) {

        // linefeed and final zero : signal we need more space

        return (int)len + 2;

    }

    if (Base64Encode((unsigned char *)str->ptr, str->len, (uint8_t *)out, &len) != SC_BASE64_OK)

        return 0;

    strlcat(out, "\n", out_size);

    return strlen(out);

}

int StringSet(void *dst, void *src)

{

    StringType *src_s = src;

    StringType *dst_s = dst;

    SCLogDebug("dst %p src %p, src_s->ptr %p src_s->len %u", dst, src, src_s->ptr, src_s->len);

    dst_s->len = src_s->len;

    dst_s->ptr = SCMalloc(dst_s->len);

    BUG_ON(dst_s->ptr == NULL);

    memcpy(dst_s->ptr, src_s->ptr, dst_s->len);

    dst_s->rep = src_s->rep;

    SCLogDebug("dst %p src %p, dst_s->ptr %p dst_s->len %u", dst, src, dst_s->ptr, dst_s->len);

    return 0;

}

bool StringCompare(void *a, void *b)

{

    const StringType *as = a;

    const StringType *bs = b;

    if (as->len != bs->len)

        return false;

    return (memcmp(as->ptr, bs->ptr, as->len) == 0);

}

uint32_t StringHash(uint32_t hash_seed, void *s)

{

    StringType *str = s;

    return hashlittle_safe(str->ptr, str->len, hash_seed);

}

// base data stays in hash

void StringFree(void *s)

{

    StringType *str = s;

    SCFree(str->ptr);

}