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