private void sendExit(int tag, OtpErlangPid from, OtpErlangPid dest, OtpErlangObject reason) { if (!connected) { throw new IOException("Not connected"); } OtpOutputStream header = new OtpOutputStream(headerLen); // preamble: 4 byte length + "passthrough" tag header.write4BE(0); // reserve space for length header.write1(passThrough); header.write1(version); // header header.write_tuple_head(4); header.write_long(tag); header.write_any(from); header.write_any(dest); header.write_any(reason); // fix up length in preamble header.poke4BE(0, header.size() - 4); do_send(header); }
/* * Send an auth error to peer because he sent a bad cookie. The auth error * uses his cookie (not revealing ours). This is just like send_reg * otherwise */ private void cookieError(OtpLocalNode local, OtpErlangAtom cookie) { try { OtpOutputStream header = new OtpOutputStream(headerLen); // preamble: 4 byte length + "passthrough" tag + version header.write4BE(0); // reserve space for length header.write1(passThrough); header.write1(version); header.write_tuple_head(4); header.write_long(regSendTag); header.write_any(local.createPid()); // disposable pid header.write_atom(cookie.atomValue()); // important: his cookie, // not mine... header.write_atom("auth"); // version for payload header.write1(version); // the payload // the no_auth message (copied from Erlang) Don't change this // (Erlang will crash) // {$gen_cast, {print, "~n** Unauthorized cookie ~w **~n", // [foo@aule]}} OtpErlangObject[] msg = new OtpErlangObject[2]; OtpErlangObject[] msgbody = new OtpErlangObject[3]; msgbody[0] = new OtpErlangAtom("print"); msgbody[1] = new OtpErlangString("~n** Bad cookie sent to " + local + " **~n"); // Erlang will crash and burn if there is no third argument here... msgbody[2] = new OtpErlangList(); // empty list msg[0] = new OtpErlangAtom("$gen_cast"); msg[1] = new OtpErlangTuple(msgbody); OtpOutputStream payload = new OtpOutputStream(new OtpErlangTuple(msg)); // fix up length in preamble header.poke4BE(0, header.size() + payload.size() - 4); try { do_send(header, payload); } catch (IOException) { } // ignore } finally { close(); } throw new OtpAuthException("Remote cookie not authorized: " + cookie.atomValue()); }
protected void sendName(int dist, int flags) { OtpOutputStream obuf = new OtpOutputStream(); String str = self.Node; obuf.write2BE(str.Length + 7); // 7 bytes + nodename obuf.write1(AbstractNode.NTYPE_R6); obuf.write2BE(dist); obuf.write4BE(flags); obuf.write(Encoding.GetEncoding("iso-8859-1").GetBytes(str)); obuf.WriteTo(socket.GetOutputStream()); if (traceLevel >= handshakeThreshold) { log.Debug("-> " + "HANDSHAKE sendName" + " flags=" + flags + " dist=" + dist + " local=" + self); } }
protected void sendChallengeReply(int challenge, byte[] digest) { OtpOutputStream obuf = new OtpOutputStream(); obuf.write2BE(21); obuf.write1(ChallengeReply); obuf.write4BE(challenge); obuf.write(digest); obuf.WriteTo(socket.GetOutputStream()); if (traceLevel >= handshakeThreshold) { log.Debug("-> " + "HANDSHAKE sendChallengeReply" + " challenge=" + challenge + " digest=" + hex(digest) + " local=" + self); } }
/** * Send a pre-encoded message to a process on a remote node. * * @param dest * the Erlang PID of the remote process. * @param msg * the encoded message to send. * * @exception java.io.IOException * if the connection is not active or a communication error * occurs. */ protected void sendBuf(OtpErlangPid from, OtpErlangPid dest, OtpOutputStream payload) { if (!connected) { throw new IOException("Not connected"); } OtpOutputStream header = new OtpOutputStream(headerLen); // preamble: 4 byte length + "passthrough" tag + version header.write4BE(0); // reserve space for length header.write1(passThrough); header.write1(version); // header info header.write_tuple_head(3); header.write_long(sendTag); if (sendCookie) { header.write_atom(self.Cookie); } else { header.write_atom(""); } header.write_any(dest); // version for payload header.write1(version); // fix up length in preamble header.poke4BE(0, header.size() + payload.size() - 4); do_send(header, payload); }
private void r4_names(TcpClient s, OtpInputStream ibuf) { try { if (traceLevel >= traceThreshold) { log.Debug("<- NAMES(r4) "); } OtpOutputStream obuf = new OtpOutputStream(); obuf.write4BE(EpmdPort.get()); lock (portmap) { foreach (KeyValuePair<string, OtpPublishedNode> pair in portmap) { OtpPublishedNode node = pair.Value; string info = String.Format("name {0} at port {1}\n", node.Alive, node.Port); byte[] bytes = Encoding.GetEncoding("iso-8859-1").GetBytes(info); obuf.writeN(bytes); } } obuf.WriteTo(s.GetStream()); } catch (IOException) { if (traceLevel >= traceThreshold) { log.Debug("<- (no response)"); } throw new IOException("Request not responding"); } return; }