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Open Source Implementation of Trivial File Transfer Protocol (TFTP)

License: GNU General Public License v3.0

Java 99.73% Dockerfile 0.27%

tftp tftp-client tftp-protocol tftp-server

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sstftp's Issues

Timer issues

Exception in thread "main" java.lang.IllegalStateException: Timer already cancelled.
	at java.base/java.util.Timer.sched(Timer.java:398)
	at java.base/java.util.Timer.schedule(Timer.java:249)
	at pt.cguimaraes.sstftp.socket.TFTPSocket.send(TFTPSocket.java:127)
	at pt.cguimaraes.sstftp.client.TFTPClient.send(TFTPClient.java:104)
	at pt.cguimaraes.sstftp.client.TFTPClient.<init>(TFTPClient.java:95)
	at pt.cguimaraes.sstftp.client.Main.main(Main.java:206)

Retransmission not working

Messages are not being retransmitted upon timeout.

public void run() {
    Logger.getGlobal().info("RUN");
    if (i > retries) {
        ++i;
        try {
            socket.send(socketPacket);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

if (i > retries) shall be if (i < retries) instead.

Communication does not continue

Server accepts connection but does not continue communication.

Server:

$ java -jar sstftp-server/target/sstftp-server-0.2.jar -d ./example-files -p 55555
$ ^C

Client:

$ java -jar sstftp-client/target/sstftp-client-0.2.jar -a get -f f1024.txt -c localhost -p 55555
Aug 05, 2023 10:18:02 AM pt.cguimaraes.sstftp.client.TFTPClient <init>
INFO: Downloading f1024.txt from server in octet mode...
$ ^C

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