mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-21 12:21:49 +03:00
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
// Base32 implementation
|
|
//
|
|
// Copyright 2010 Google Inc.
|
|
// Author: Markus Gutschke
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
// Encode and decode from base32 encoding using the following alphabet:
|
|
// ABCDEFGHIJKLMNOPQRSTUVWXYZ234567
|
|
// This alphabet is documented in RFC 4648/3548
|
|
//
|
|
// We allow white-space and hyphens, but all other characters are considered
|
|
// invalid.
|
|
//
|
|
// All functions return the number of output bytes or -1 on error. If the
|
|
// output buffer is too small, the result will silently be truncated.
|
|
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
|
|
/**
|
|
* @brief Decodes Base-32 encoded bytes into plain bytes.
|
|
* @param encoded Base-32 encoded bytes
|
|
* @param[out] result result output buffer
|
|
* @param bufSize result output buffer size
|
|
* @return Decoded result length in bytes if successfully decoded; \c -1 otherwise
|
|
*/
|
|
int base32_decode(const uint8_t* encoded, uint8_t* result, int bufSize);
|