Otp.AbstractConnection.recvChallenge C# (CSharp) Method

        protected internal virtual int recvChallenge()
        {
            
            int challenge;
            
            try
            {
                byte[] buf = read2BytePackage();
                OtpInputStream ibuf = new OtpInputStream(buf);
                peer.ntype = ibuf.read1();
                if (peer.ntype != AbstractNode.NTYPE_R6)
                {
                    throw new System.IO.IOException("Unexpected peer type");
                }
                peer._distLow = (peer._distHigh = ibuf.read2BE());
                peer.flags = ibuf.read4BE();
                challenge = ibuf.read4BE();
                byte[] tmpname = new byte[buf.Length - 11];
                ibuf.readN(tmpname);
                char[] tmpChar;
                tmpChar = new char[tmpname.Length];
                tmpname.CopyTo(tmpChar, 0);
                System.String hisname = new System.String(tmpChar);
                int i = hisname.IndexOf((System.Char) '@', 0);
                peer._node = hisname;
                peer._alive = hisname.Substring(0, (i) - (0));
                peer._host = hisname.Substring(i + 1, (hisname.Length) - (i + 1));
            }
            catch (Erlang.Exception)
            {
                throw new System.IO.IOException("Handshake failed - not enough data");
            }
            
            if (traceLevel >= OtpTrace.Type.handshakeThreshold)
            {
                OtpTrace.TraceEvent("<- " + "HANDSHAKE recvChallenge" + " from=" + peer._node + " challenge=" + challenge + " local=" + self);
            }
            
            return challenge;
        }