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app-ethereum/src/rlp_utils.h
2024-02-02 11:23:28 +01:00

38 lines
1.4 KiB
C

/*******************************************************************************
* Ledger Ethereum App
* (c) 2016-2019 Ledger
*
* 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.
********************************************************************************/
#pragma once
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
/**
* @brief Decode an RLP encoded field - see
* https://github.com/ethereum/wiki/wiki/RLP
* @param [in] buffer buffer containing the RLP encoded field to decode
* @param [out] fieldLength length of the RLP encoded field
* @param [out] offset offset to the beginning of the RLP encoded field from the
* buffer
* @param [out] list true if the field encodes a list, false if it encodes a
* string
* @return true if the RLP header is consistent
*/
bool rlpDecodeLength(uint8_t *buffer, uint32_t *fieldLength, uint32_t *offset, bool *list);
bool rlpCanDecode(uint8_t *buffer, uint32_t bufferLength, bool *valid);