public static byte[] EncodeVersionPayload(VersionPayload versionPayload, bool withRelay)
{
using (var stream = new MemoryStream())
using (var writer = new BinaryWriter(stream))
{
EncodeVersionPayload(writer, versionPayload, withRelay);
return(stream.ToArray());
}
}
public static void EncodeVersionPayload(BinaryWriter writer, VersionPayload versionPayload, bool withRelay)
{
writer.WriteUInt32(versionPayload.ProtocolVersion);
writer.WriteUInt64(versionPayload.ServicesBitfield);
writer.WriteUInt64((ulong)versionPayload.Time.ToUnixTimeSeconds());
EncodeNetworkAddress(writer, versionPayload.RemoteAddress);
EncodeNetworkAddress(writer, versionPayload.LocalAddress);
writer.WriteUInt64(versionPayload.Nonce);
writer.WriteVarString(versionPayload.UserAgent);
writer.WriteUInt32(versionPayload.StartBlockHeight);
if (withRelay)
{
writer.WriteBool(versionPayload.Relay);
}
}
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 byte[] EncodeVersionPayload(VersionPayload versionPayload, bool withRelay)
{
var stream = new MemoryStream();
EncodeVersionPayload(stream, versionPayload, withRelay);
return stream.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 VersionPayload DecodeVersionPayload(Stream stream, int payloadLength)
{
using (var reader = new BinaryReader(stream, Encoding.ASCII, leaveOpen: true))
{
var position = stream.Position;
var versionPayload = new VersionPayload
(
ProtocolVersion: reader.Read4Bytes(),
ServicesBitfield: reader.Read8Bytes(),
UnixTime: reader.Read8Bytes(),
RemoteAddress: DecodeNetworkAddress(stream),
LocalAddress: DecodeNetworkAddress(stream),
Nonce: reader.Read8Bytes(),
UserAgent: reader.ReadVarString(),
StartBlockHeight: reader.Read4Bytes(),
Relay: false
);
var readCount = stream.Position - position;
if (versionPayload.ProtocolVersion >= VersionPayload.RELAY_VERSION && payloadLength - readCount == 1)
versionPayload = versionPayload.With(Relay: reader.ReadBool());
return versionPayload;
}
}
