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https://github.com/trezor/trezor-firmware.git
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85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "coins.h"
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#include <string.h>
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#include "address.h"
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#include "base58.h"
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#include "ecdsa.h"
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const CoinInfo *coinByName(const char *name) {
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if (!name) return 0;
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for (int i = 0; i < COINS_COUNT; i++) {
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if (strcmp(name, coins[i].coin_name) == 0) {
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return &(coins[i]);
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}
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}
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return 0;
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}
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const CoinInfo *coinByAddressType(uint32_t address_type) {
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for (int i = 0; i < COINS_COUNT; i++) {
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if (address_type == coins[i].address_type) {
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return &(coins[i]);
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}
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}
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return 0;
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}
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const CoinInfo *coinBySlip44(uint32_t coin_type) {
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if (coin_type == SLIP44_TESTNET) {
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// The slip44 coin type is the same for all testnets, so we return the
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// Bitcoin Testnet.
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return coinByName("Testnet");
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}
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for (int i = 0; i < COINS_COUNT; i++) {
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if (coin_type == coins[i].coin_type) {
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return &(coins[i]);
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}
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}
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return 0;
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}
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bool coinExtractAddressType(const CoinInfo *coin, const char *addr,
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uint32_t *address_type) {
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if (!addr) return false;
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uint8_t addr_raw[MAX_ADDR_RAW_SIZE] = {0};
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int len = base58_decode_check(addr, coin->curve->hasher_base58, addr_raw,
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MAX_ADDR_RAW_SIZE);
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if (len >= 21) {
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return coinExtractAddressTypeRaw(coin, addr_raw, address_type);
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}
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return false;
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}
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bool coinExtractAddressTypeRaw(const CoinInfo *coin, const uint8_t *addr_raw,
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uint32_t *address_type) {
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if (address_check_prefix(addr_raw, coin->address_type)) {
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*address_type = coin->address_type;
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return true;
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}
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if (address_check_prefix(addr_raw, coin->address_type_p2sh)) {
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*address_type = coin->address_type_p2sh;
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return true;
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}
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*address_type = 0;
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return false;
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}
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