public static byte[] EncodeTransaction(UInt32 Version, ImmutableArray<TxInput> Inputs, ImmutableArray<TxOutput> Outputs, UInt32 LockTime)
{
var stream = new MemoryStream();
using (var writer = new BinaryWriter(stream))
{
writer.Write4Bytes(Version);
writer.WriteVarInt((UInt64)Inputs.Length);
foreach (var input in Inputs)
{
writer.Write32Bytes(input.PreviousTxOutputKey.TxHash);
writer.Write4Bytes(input.PreviousTxOutputKey.TxOutputIndex);
writer.WriteVarBytes(input.ScriptSignature.ToArray());
writer.Write4Bytes(input.Sequence);
}
writer.WriteVarInt((UInt64)Outputs.Length);
foreach (var output in Outputs)
{
writer.Write8Bytes(output.Value);
writer.WriteVarBytes(output.ScriptPublicKey.ToArray());
}
writer.Write4Bytes(LockTime);
return stream.ToArray();
}
}
public static void EncodeTxOutput(Stream stream, TxOutput txOutput)
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, leaveOpen: true))
{
writer.Write8Bytes(txOutput.Value);
writer.WriteVarBytes(txOutput.ScriptPublicKey.ToArray());
}
}
public static void EncodeVersionPayload(Stream stream, VersionPayload versionPayload, bool withRelay)
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, leaveOpen: true))
{
writer.Write4Bytes(versionPayload.ProtocolVersion);
writer.Write8Bytes(versionPayload.ServicesBitfield);
writer.Write8Bytes(versionPayload.UnixTime);
EncodeNetworkAddress(stream, versionPayload.RemoteAddress);
EncodeNetworkAddress(stream, versionPayload.LocalAddress);
writer.Write8Bytes(versionPayload.Nonce);
writer.WriteVarString(versionPayload.UserAgent);
writer.Write4Bytes(versionPayload.StartBlockHeight);
if (withRelay)
writer.WriteBool(versionPayload.Relay);
}
}
public static void EncodeNetworkAddress(Stream stream, NetworkAddress networkAddress)
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, leaveOpen: true))
{
writer.Write8Bytes(networkAddress.Services);
writer.WriteBytes(16, networkAddress.IPv6Address.ToArray());
writer.Write2BytesBE(networkAddress.Port);
}
}
