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/*
This file is part of TALER
Copyright (C) 2014, 2015, 2016 GNUnet e.V.
TALER 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 3, or (at your option) any later version.
TALER 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
TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file json/json.c
* @brief helper functions for JSON processing using libjansson
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include "taler_util.h"
#include "taler_json_lib.h"
/**
* Hash a JSON for binary signing.
*
* @param[in] json some JSON value
* @param[out] hc resulting hash code
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
TALER_JSON_hash (const json_t *json,
struct GNUNET_HashCode *hc)
{
char *wire_enc;
size_t len;
if (NULL == (wire_enc = json_dumps (json,
JSON_COMPACT | JSON_SORT_KEYS)))
return GNUNET_SYSERR;
len = strlen (wire_enc) + 1;
GNUNET_CRYPTO_hash (wire_enc,
len,
hc);
free (wire_enc);
return GNUNET_OK;
}
/* End of json/json.c */
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