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/* Copyright (C) 2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
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 3 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, see <http://www.gnu.org/licenses/>.
*/
/*!
* \file
*
* \brief Coversion between HEX strings and bytes.
*
* \addtogroup knot_utils
* @{
*/
#pragma once
#include <stdint.h>
#include <stdlib.h>
/*!
* \brief Convert string encoded in hex to bytes.
*
* \param input Hex encoded input string.
* \param output Decoded bytes.
* \param output_size Size of the output.
*
* \return Error code, KNOT_EOK if successful.
*/
int hex_decode(const char *input, uint8_t **output, size_t *output_size);
/*! @} */
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