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/* Copyright (C) 2021 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 <https://www.gnu.org/licenses/>.
*/
/*!
* \file
*
* \brief Zone scanner auxiliary functions.
*
* \addtogroup zone_scanner
* @{
*/
#pragma once
#include <stdint.h>
#include "libzscanner/scanner.h"
/*! \brief Transforms digit char to number. */
extern const uint8_t digit_to_num[];
/*! \brief Transforms first hex char to the part of the total number. */
extern const uint8_t first_hex_to_num[];
/*! \brief Transforms second hex char to the part of the total number. */
extern const uint8_t second_hex_to_num[];
/*! \brief Transforms first Base64 char. */
extern const uint8_t first_base64_to_num[];
/*! \brief Transforms left part of the second Base64 char. */
extern const uint8_t second_left_base64_to_num[];
/*! \brief Transforms left part of the second Base64 char. */
extern const uint8_t second_right_base64_to_num[];
/*! \brief Transforms left part of the third Base64 char. */
extern const uint8_t third_left_base64_to_num[];
/*! \brief Transforms left part of the third Base64 char. */
extern const uint8_t third_right_base64_to_num[];
/*! \brief Transforms fourth Base64 char. */
extern const uint8_t fourth_base64_to_num[];
/*! \brief Transforms first Base32hex char. */
extern const uint8_t first_base32hex_to_num[];
/*! \brief Transforms left part of the second Base32hex char. */
extern const uint8_t second_left_base32hex_to_num[];
/*! \brief Transforms right part of the second Base32hex char. */
extern const uint8_t second_right_base32hex_to_num[];
/*! \brief Transforms third Base32hex char. */
extern const uint8_t third_base32hex_to_num[];
/*! \brief Transforms left part of the fourth Base32hex char. */
extern const uint8_t fourth_left_base32hex_to_num[];
/*! \brief Transforms right part of the fourth Base32hex char. */
extern const uint8_t fourth_right_base32hex_to_num[];
/*! \brief Transforms left part of the fifth Base32hex char. */
extern const uint8_t fifth_left_base32hex_to_num[];
/*! \brief Transforms right part of the fifth Base32hex char. */
extern const uint8_t fifth_right_base32hex_to_num[];
/*! \brief Transforms sixth Base32hex char. */
extern const uint8_t sixth_base32hex_to_num[];
/*! \brief Transforms left part of the seventh Base32hex char. */
extern const uint8_t seventh_left_base32hex_to_num[];
/*! \brief Transforms right part of the seventh Base32hex char. */
extern const uint8_t seventh_right_base32hex_to_num[];
/*! \brief Transforms eighth Base32hex char. */
extern const uint8_t eighth_base32hex_to_num[];
/*!
* \brief Converts YYYYMMDDHHMMSS time string to unsigned 32-bit timestamp.
*
* \param buff Buffer containing time string.
* \param timestamp Computed timestamp.
*
* \retval KNOT_EOK if success.
* \retval error_code if error.
*/
int date_to_timestamp(uint8_t *buff, uint32_t *timestamp);
/*!
* \brief Converts wire-format dname to text dname.
*
* \param data Buffer containing wire-format dname.
* \param data_len Length of the buffer.
* \param text Text output.
*/
void wire_dname_to_str(const uint8_t *data,
const uint32_t data_len,
char *text);
/*!
* \brief Converts unsigned integer to mantissa*10^(exponent).
*
* Given number is encoded as two 4-bit numbers. First part is mantissa [0-9],
* second part is decimal exponent [0-15]. Result is concatenation of these
* two blocks.
*
* \param number Number to convert.
*
* \retval number encoded number.
*/
uint8_t loc64to8(uint64_t number);
/*!
* \brief Sorts mandatory parameter values of the SVCB record.
*
* \param list_begin Start of the parameter list.
* \param list_end End of the parameter list.
*/
void svcb_mandatory_sort(uint8_t *list_begin, uint8_t *list_end);
/*!
* \brief Sorts parameters of the SVCB record.
*
* \param scanner Scanner context.
* \param rdata_end Current end of the output data.
*
* \return ZS_*.
*/
int svcb_sort(zs_scanner_t *scanner, uint8_t *rdata_end);
/*!
* \brief Final check of a sorted SVCB record.
*
* \param scanner Scanner context.
* \param rdata_end Current end of the output data.
*
* \return ZS_*.
*/
int svcb_check(zs_scanner_t *scanner, uint8_t *rdata_end);
/*! @} */
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