ed4e10628a
Defining out_buffer_size as uint8_t triggers warnings with static analysers when sizeof() is used on the output buffer. There is no reason to use uint8_t here.
91 lines
3.1 KiB
C
91 lines
3.1 KiB
C
/*******************************************************************************
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* Ledger Ethereum App
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* (c) 2016-2019 Ledger
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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********************************************************************************/
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#ifndef _ETHUTILS_H_
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#define _ETHUTILS_H_
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#include <stdint.h>
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#include "cx.h"
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#include "chainConfig.h"
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#include "eth_plugin_interface.h"
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/**
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* @brief Decode an RLP encoded field - see
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* https://github.com/ethereum/wiki/wiki/RLP
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* @param [in] buffer buffer containing the RLP encoded field to decode
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* @param [out] fieldLength length of the RLP encoded field
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* @param [out] offset offset to the beginning of the RLP encoded field from the
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* buffer
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* @param [out] list true if the field encodes a list, false if it encodes a
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* string
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* @return true if the RLP header is consistent
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*/
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bool rlpDecodeLength(uint8_t *buffer, uint32_t *fieldLength, uint32_t *offset, bool *list);
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bool rlpCanDecode(uint8_t *buffer, uint32_t bufferLength, bool *valid);
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void getEthAddressFromKey(cx_ecfp_public_key_t *publicKey, uint8_t *out, cx_sha3_t *sha3Context);
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void getEthAddressStringFromKey(cx_ecfp_public_key_t *publicKey,
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char *out,
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cx_sha3_t *sha3Context,
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uint64_t chainId);
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void u64_to_string(uint64_t src, char *dst, uint8_t dst_size);
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void getEthAddressStringFromBinary(uint8_t *address,
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char *out,
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cx_sha3_t *sha3Context,
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uint64_t chainId);
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void getEthDisplayableAddress(uint8_t *in,
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char *out,
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size_t out_len,
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cx_sha3_t *sha3,
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uint64_t chainId);
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uint8_t *getNftContractAddress(const ethQueryContractUI_t *const msg);
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bool adjustDecimals(const char *src,
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size_t srcLength,
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char *target,
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size_t targetLength,
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uint8_t decimals);
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static __attribute__((no_instrument_function)) inline int allzeroes(void *buf, size_t n) {
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uint8_t *p = (uint8_t *) buf;
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for (size_t i = 0; i < n; ++i) {
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if (p[i]) {
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return 0;
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}
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}
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return 1;
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}
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static __attribute__((no_instrument_function)) inline int ismaxint(uint8_t *buf, int n) {
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for (int i = 0; i < n; ++i) {
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if (buf[i] != 0xff) {
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return 0;
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}
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}
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return 1;
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}
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static const char HEXDIGITS[] = "0123456789abcdef";
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#endif /* _ETHUTILS_H_ */
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