mirror of
https://github.com/trezor/trezor-firmware.git
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65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/**
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* Copyright (c) 2016 Pavol Rusnak
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include "base58.h"
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#include "script.h"
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int script_output_to_address(const uint8_t *script, int scriptlen, char *addr, int addrsize)
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{
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uint8_t raw[35];
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// P2PKH
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if (scriptlen == 25 && script[0] == 0x76 && script[1] == 0xA9 && script[2] == 0x14 && script[23] == 0x88 && script[24] == 0xAC) {
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raw[0] = 0x00;
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memcpy(raw + 1, script + 3, 20);
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return base58_encode_check(raw, 1 + 20, HASHER_SHA2, addr, addrsize);
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}
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// P2SH
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if (scriptlen == 23 && script[0] == 0xA9 && script[1] == 0x14 && script[22] == 0x87) {
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raw[0] = 0x05;
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memcpy(raw + 1, script + 2, 20);
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return base58_encode_check(raw, 1 + 20, HASHER_SHA2, addr, addrsize);
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}
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// P2WPKH
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if (scriptlen == 22 && script[0] == 0x00 && script[1] == 0x14) {
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raw[0] = 0x06;
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raw[1] = 0x00;
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raw[2] = 0x00;
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memcpy(raw + 3, script + 2, 20);
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return base58_encode_check(raw, 3 + 20, HASHER_SHA2, addr, addrsize);
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}
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// P2WSH
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if (scriptlen == 34 && script[0] == 0x00 && script[1] == 0x20) {
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raw[0] = 0x0A;
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raw[1] = 0x00;
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raw[2] = 0x00;
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memcpy(raw + 3, script + 2, 32);
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return base58_encode_check(raw, 3 + 32, HASHER_SHA2, addr, addrsize);
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}
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return 0;
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}
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