public static Packet FromByteArray(byte[] data)
{
using (MemoryStream ms = new MemoryStream(data, false))
using (BinaryReader reader = new BinaryReader(ms))
{
ulong magic = reader.ReadUInt64();
if (magic != STEAM_DISCOVERY_MAGIC)
{
throw new IOException("Invalid packet, bad magic number: 0x" + magic.ToString("X16"));
}
Packet packet = new Packet();
uint hdrLen = reader.ReadUInt32();
byte[] hdrData = reader.ReadBytes((int)hdrLen);
CMsgRemoteClientBroadcastHeader hdr = CMsgRemoteClientBroadcastHeader.Parser.ParseFrom(hdrData);
packet.clientId = hdr.ClientId;
packet.instanceId = hdr.InstanceId;
packet.type = hdr.MsgType;
if (ms.Position < ms.Length)
{
uint payloadLen = reader.ReadUInt32();
packet.payload = reader.ReadBytes((int)payloadLen);
}
return(packet);
}
}
public byte[] payload; // optional
public byte[] ToByteArray()
{
using (MemoryStream ms = new MemoryStream())
using (BinaryWriter writer = new BinaryWriter(ms))
{
writer.Write(STEAM_DISCOVERY_MAGIC);
CMsgRemoteClientBroadcastHeader hdr = new CMsgRemoteClientBroadcastHeader()
{
ClientId = clientId,
InstanceId = instanceId,
MsgType = type
};
byte[] hdrData = hdr.ToByteArray();
writer.Write((uint)hdrData.Length);
writer.Write(hdrData);
if (payload != null)
{
writer.Write((uint)payload.Length);
writer.Write(payload);
}
writer.Flush();
return(ms.ToArray());
}
}
