/*
* Copyright (c) Martin Schoeberl, martin@jopdesign.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Martin Schoeberl
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
package ejip.examples;
import ejip.*;
import util.Timer;
/**
* Test main for TCP.
*/
public class Telnetd extends TcpHandler {
static Net net;
static LinkLayer ipLink;
StringBuffer sb = new StringBuffer();
StringBuffer cmd = new StringBuffer();
/**
* Start network and enter forever loop.
*/
public static void main(String[] args) {
Ejip ejip = new Ejip();
//
// start TCP/IP
//
net = new Net(ejip);
// don't use CS8900 when simulating on PC or for BG263
int[] eth = {0x00, 0xe0, 0x98, 0x33, 0xb0, 0xf8};
int ip = Ejip.makeIp(192, 168, 0, 123);
ipLink = new CS8900(ejip, eth, ip);
// a telnet server
net.getTcp().addHandler(23, new Telnetd());
forever();
}
private static void forever() {
for (;;) {
for (int i=0; i<1000; ++i) {
ipLink.run();
net.run();
}
Timer.wd();
}
}
public Packet request(Packet p) {
StringBuffer hello = new StringBuffer("Hello from JOP\r\n");
Ip.getData(p, Tcp.DATA, sb);
StringBuffer resp = null;
if (sb.length()!=0) {
System.out.print("Telnet data:");
System.out.println(sb);
for (int i=0; i<sb.length(); ++i) {
char ch = sb.charAt(i);
if (ch!='\n' && ch!='\r') {
cmd.append(ch);
} else {
String s = cmd.toString();
if (s.equals("hello")) {
resp = hello;
}
cmd.setLength(0);
}
}
}
if (resp!=null) {
Ip.setData(p, Tcp.DATA, resp);
} else {
p.len = Tcp.DATA<<2;
}
return p;
}
public Packet established(Packet p) {
Ip.setData(p, Tcp.DATA, "Welcome to JOP\r\n");
return p;
}
public boolean finished() {
// TODO Auto-generated method stub
return false;
}
}