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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:41:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:41:58 +0000 |
commit | 1852910ef0fd7393da62b88aee66ee092208748e (patch) | |
tree | ad3b659dbbe622b58a5bda4fe0b5e1d80eee9277 /contrib/base32hex.h | |
parent | Initial commit. (diff) | |
download | knot-resolver-1852910ef0fd7393da62b88aee66ee092208748e.tar.xz knot-resolver-1852910ef0fd7393da62b88aee66ee092208748e.zip |
Adding upstream version 5.3.1.upstream/5.3.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'contrib/base32hex.h')
-rw-r--r-- | contrib/base32hex.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/contrib/base32hex.h b/contrib/base32hex.h new file mode 100644 index 0000000..ed90cef --- /dev/null +++ b/contrib/base32hex.h @@ -0,0 +1,60 @@ +/* Copyright (C) 2011-2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + * SPDX-License-Identifier: GPL-3.0-or-later + */ +/*! + * \file + * + * \brief Base32hex implementation (RFC 4648). + * + * \note Input Base32hex string can contain a-v characters. These characters + * are considered as A-V equivalent. + * + * \addtogroup contrib + * @{ + */ + +#pragma once + +#include <stdint.h> + +/*! + * \brief Decodes text data using Base32hex. + * + * \note Input data needn't be terminated with '\0'. + * + * \note Input data must be continuous Base32hex string! + * + * \param in Input text data. + * \param in_len Length of input string. + * \param out Output data buffer. + * \param out_len Size of output buffer. + * + * \retval >=0 length of output data. + * \retval KNOT_E* if error. + */ +int32_t base32hex_decode(const uint8_t *in, + const uint32_t in_len, + uint8_t *out, + const uint32_t out_len); + + +/*! + * \brief Encodes binary data using Base32hex. Lower case is used! + * + * \note Output data buffer contains Base32hex text string which isn't + * terminated with '\0'! + * + * \param in Input binary data. + * \param in_len Length of input data. + * \param out Output data buffer. + * \param out_len Size of output buffer. + * + * \retval >=0 length of output string. + * \retval <0 if error. + */ +int32_t base32hex_encode(const uint8_t *in, + const uint32_t in_len, + uint8_t *out, + const uint32_t out_len); + +/*! @} */ |