54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2014, 2015, 2016 GNUnet e.V.
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file json/json.c
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* @brief helper functions for JSON processing using libjansson
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* @author Sree Harsha Totakura <sreeharsha@totakura.in>
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*/
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#include "platform.h"
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#include <gnunet/gnunet_util_lib.h>
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#include "taler_util.h"
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#include "taler_json_lib.h"
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/**
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* Hash a JSON for binary signing.
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*
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* @param[in] json some JSON value
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* @param[out] hc resulting hash code
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* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
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*/
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int
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TALER_JSON_hash (const json_t *json,
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struct GNUNET_HashCode *hc)
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{
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char *wire_enc;
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size_t len;
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if (NULL == (wire_enc = json_dumps (json,
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JSON_COMPACT | JSON_SORT_KEYS)))
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return GNUNET_SYSERR;
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len = strlen (wire_enc) + 1;
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GNUNET_CRYPTO_hash (wire_enc,
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len,
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hc);
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free (wire_enc);
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return GNUNET_OK;
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}
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/* End of json/json.c */
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