cryptnox-pos/tron__tx_8h_source.html

/*

 * SPDX-License-Identifier: LGPL-3.0-or-later

 * Copyright (c) 2026 Cryptnox SA

 */


#ifndef TRON_TX_H

#define TRON_TX_H


#include <stdint.h>

#include <stdbool.h>

#include <stddef.h>


#ifdef __cplusplus

extern "C" {

#endif


#define TRON_ADDR_HEX_LEN  42U


#define TRON_SIG_HEX_LEN   130U


#define TRON_TRC20_SELECTOR       "a9059cbb"


#define TRON_TRC20_PARAM_HEX_LEN  128U


#define TRON_TX_MAX_EXPIRY_MS     (15ULL * 60ULL * 1000ULL)


size_t tron_varint_hex(uint64_t v, char *out, size_t out_size);


bool tron_tx_contract_ok(const char *raw_data_hex, const char *owner_hex,

                         const char *to_hex, uint64_t amount_sun,

                         uint64_t now_ms, uint64_t *expiration_ms);


size_t tron_trc20_param_hex(const char *to_hex, uint64_t amount,

                            char *out, size_t out_size);


bool tron_tx_trc20_ok(const char *raw_data_hex, const char *owner_hex,

                      const char *contract_hex, const char *to_hex,

                      uint64_t amount, uint64_t fee_limit_sun,

                      uint64_t now_ms, uint64_t *expiration_ms);


size_t tron_tx_envelope_hex(const char *raw_data_hex, const char *sig_hex,

                            char *out, size_t out_size);


#ifdef __cplusplus

}

#endif


#endif /* TRON_TX_H */

now_ms
static uint64_t now_ms(void)
Unix time in ms, 0 if the clock is unset (the checks then refuse).
Definition tron_rpc.cpp:117

tron_tx_contract_ok
bool tron_tx_contract_ok(const char *raw_data_hex, const char *owner_hex, const char *to_hex, uint64_t amount_sun, uint64_t now_ms, uint64_t *expiration_ms)
Verify that a node-serialised raw_data really transfers what we asked.
Definition tron_tx.cpp:316

tron_tx_trc20_ok
bool tron_tx_trc20_ok(const char *raw_data_hex, const char *owner_hex, const char *contract_hex, const char *to_hex, uint64_t amount, uint64_t fee_limit_sun, uint64_t now_ms, uint64_t *expiration_ms)
Verify that a node-serialised raw_data really is the TRC-20 transfer we asked for.
Definition tron_tx.cpp:365

tron_trc20_param_hex
size_t tron_trc20_param_hex(const char *to_hex, uint64_t amount, char *out, size_t out_size)
ABI-encode the arguments of transfer(address,uint256), hex.
Definition tron_tx.cpp:341

tron_varint_hex
size_t tron_varint_hex(uint64_t v, char *out, size_t out_size)
Hex-encode a value as a protobuf base-128 varint.
Definition tron_tx.cpp:76

tron_tx_envelope_hex
size_t tron_tx_envelope_hex(const char *raw_data_hex, const char *sig_hex, char *out, size_t out_size)
Build the hex of a signed Transaction protobuf for broadcasthex.
Definition tron_tx.cpp:406