From b88bb292821fd7742604ec4e280acebd9a049f62 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:36:22 +0200 Subject: Adding upstream version 3.0.5. Signed-off-by: Daniel Baumann --- src/contrib/base32hex.h | 104 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 src/contrib/base32hex.h (limited to 'src/contrib/base32hex.h') diff --git a/src/contrib/base32hex.h b/src/contrib/base32hex.h new file mode 100644 index 0000000..4a6fd8f --- /dev/null +++ b/src/contrib/base32hex.h @@ -0,0 +1,104 @@ +/* Copyright (C) 2020 CZ.NIC, z.s.p.o. + + 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 . + */ + +/*! + * \brief Base32hex implementation (RFC 4648). + * + * \note Input Base32hex string can contain a-v characters. These characters + * are considered as A-V equivalent. Lower-case variant is used for encoding! + */ + +#pragma once + +#include + +/*! + * \brief Encodes binary data using Base32hex. + * + * \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 KNOT_E* if error. + */ +int32_t knot_base32hex_encode(const uint8_t *in, + const uint32_t in_len, + uint8_t *out, + const uint32_t out_len); + +/*! + * \brief Encodes binary data using Base32hex and output stores to own buffer. + * + * \note Output data buffer contains Base32hex text string which isn't + * terminated with '\0'! + * + * \note Output buffer should be deallocated after use. + * + * \param in Input binary data. + * \param in_len Length of input data. + * \param out Output data buffer. + * + * \retval >=0 length of output string. + * \retval KNOT_E* if error. + */ +int32_t knot_base32hex_encode_alloc(const uint8_t *in, + const uint32_t in_len, + uint8_t **out); + +/*! + * \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 knot_base32hex_decode(const uint8_t *in, + const uint32_t in_len, + uint8_t *out, + const uint32_t out_len); + +/*! + * \brief Decodes text data using Base32hex and output stores to own buffer. + * + * \note Input data needn't be terminated with '\0'. + * + * \note Input data must be continuous Base32hex string! + * + * \note Output buffer should be deallocated after use. + * + * \param in Input text data. + * \param in_len Length of input string. + * \param out Output data buffer. + * + * \retval >=0 length of output data. + * \retval KNOT_E* if error. + */ +int32_t knot_base32hex_decode_alloc(const uint8_t *in, + const uint32_t in_len, + uint8_t **out); -- cgit v1.2.3