60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* Copyright (C) CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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/*!
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* \file
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*
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* \brief Base32hex implementation (RFC 4648).
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*
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* \note Input Base32hex string can contain a-v characters. These characters
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* are considered as A-V equivalent.
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*
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* \addtogroup contrib
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* @{
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*/
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#pragma once
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#include <stdint.h>
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/*!
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* \brief Decodes text data using Base32hex.
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*
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* \note Input data needn't be terminated with '\0'.
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*
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* \note Input data must be continuous Base32hex string!
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*
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* \param in Input text data.
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* \param in_len Length of input string.
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* \param out Output data buffer.
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* \param out_len Size of output buffer.
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*
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* \retval >=0 length of output data.
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* \retval KNOT_E* if error.
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*/
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int32_t base32hex_decode(const uint8_t *in,
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const uint32_t in_len,
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uint8_t *out,
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const uint32_t out_len);
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/*!
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* \brief Encodes binary data using Base32hex. Lower case is used!
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*
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* \note Output data buffer contains Base32hex text string which isn't
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* terminated with '\0'!
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*
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* \param in Input binary data.
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* \param in_len Length of input data.
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* \param out Output data buffer.
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* \param out_len Size of output buffer.
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*
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* \retval >=0 length of output string.
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* \retval <0 if error.
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*/
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int32_t base32hex_encode(const uint8_t *in,
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const uint32_t in_len,
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uint8_t *out,
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const uint32_t out_len);
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/*! @} */
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