71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
#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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{
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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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{
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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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{
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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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{
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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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{
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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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{
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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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} } }
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