Add example remote command program.

RemoteCommand.cpp

@@ -0,0 +1,73 @@
+/*
+ *   Copyright (C) 2019 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "RemoteCommand.h"
+
+#include "UDPSocket.h"
+
+#include <cstdio>
+
+int main(int argc, char** argv)
+{
+	if (argc < 3) {
+		::fprintf(stderr, "Usage: RemoteCommand <port> <command>\n");
+		return 1;
+	}
+
+	unsigned int port = (unsigned int)::atoi(argv[1]);
+	std::string command = std::string(argv[2]);
+
+	if (port == 0U) {
+		::fprintf(stderr, "RemoteCommand: invalid port number - %s\n", argv[1]);
+		return 1;
+	}
+
+	CRemoteCommand command(port);
+
+	return send(command);
+}
+
+CRemoteCommand::CRemoteCommand(unsigned int port) :
+m_port(port)
+{
+}
+
+CRemoteCommand::~CRemoteCommand()
+{
+}
+
+int CRemoteCommand::send(const std::string& command)
+{
+	CUDPSocket socket(0U);
+
+	bool ret = socket.open();
+	if (!ret)
+		return 1;
+
+	in_addr address = CUDPSocket::lookup("localhost");
+
+	ret = socket.write(command.c_str(), command.len(), address, m_port);
+	if (!ret) {
+		socket.close();
+		return 1;
+	}
+
+	socket.close();
+
+	return 0;
+}

RemoteCommand.h

@@ -0,0 +1,36 @@
+/*
+ *   Copyright (C) 2019 by Jonathan Naylor G4KLX
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef RemoteCommand_H
+#define RemoteCommand_H
+
+#include <string>
+
+class CRemoteCommand
+{
+public:
+	CRemoteCommand(unsigned int port);
+	~CRemoteCommand();
+
+	int send(const std::string& command);
+
+private:
+	unsigned int m_port;
+};
+
+#endif