66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
#include <fc/io/raw.hpp>
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#include <graphene/peerplays_sidechain/bitcoin/bitcoin_script.hpp>
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#include <graphene/peerplays_sidechain/bitcoin/serialize.hpp>
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namespace graphene { namespace peerplays_sidechain { namespace bitcoin {
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script_builder &script_builder::operator<<(op opcode) {
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const auto op_byte = static_cast<uint8_t>(opcode);
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if (op_byte < 0 || op_byte > 0xff)
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throw std::runtime_error("script_builder::operator<<(OP): invalid opcode");
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script.push_back(op_byte);
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return *this;
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}
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script_builder &script_builder::operator<<(uint32_t number) {
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if (number == 0) {
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script.push_back(static_cast<uint8_t>(op::_0));
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} else if (number <= 16) {
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script.push_back(static_cast<uint8_t>(op::_1) + number - 1);
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} else {
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bytes pack_buf;
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while (number) {
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pack_buf.push_back(number & 0xff);
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number >>= 8;
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}
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// - If the most significant byte is >= 0x80 and the value is positive, push a
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// new zero-byte to make the significant byte < 0x80 again. So, the result can
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// be 5 bytes max.
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if (pack_buf.back() & 0x80)
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pack_buf.push_back(0);
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*this << pack_buf;
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}
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return *this;
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}
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script_builder &script_builder::operator<<(size_t size) {
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write_compact_size(script, size);
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return *this;
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}
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script_builder &script_builder::operator<<(const bytes &sc) {
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write_compact_size(script, sc.size());
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script.insert(script.end(), sc.begin(), sc.end());
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return *this;
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}
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script_builder &script_builder::operator<<(const fc::sha256 &hash) {
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write_compact_size(script, hash.data_size());
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script.insert(script.end(), hash.data(), hash.data() + hash.data_size());
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return *this;
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}
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script_builder &script_builder::operator<<(const fc::ripemd160 &hash) {
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write_compact_size(script, hash.data_size());
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script.insert(script.end(), hash.data(), hash.data() + hash.data_size());
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return *this;
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}
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script_builder &script_builder::operator<<(const fc::ecc::public_key_data &pubkey_data) {
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write_compact_size(script, pubkey_data.size());
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script.insert(script.end(), pubkey_data.begin(), pubkey_data.begin() + pubkey_data.size());
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return *this;
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}
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}}} // namespace graphene::peerplays_sidechain::bitcoin
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