diff --git a/assignments/ReportingForDuty.md b/assignments/ReportingForDuty.md
index 7d3b4faff9f7c28496cf83c42040e13d7aad0419..b9511a38f34445e00beeb1779fb1d05be59d54ab 100644
--- a/assignments/ReportingForDuty.md
+++ b/assignments/ReportingForDuty.md
@@ -8,13 +8,14 @@ More information on your use of Git is in the parent directory [README.md](../..
- Don Brutzman
-- Brian Pugh
-
---
+
### 2021
- Terry is here!
+- Brian Pugh
+
- Kurt Reynolds
- Rick Lentz
@@ -35,6 +36,8 @@ More information on your use of Git is in the parent directory [README.md](../..
- John Allen
+---
+
### 2020
- Bernd Weissenberger
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework1/McNeelyTCPExample2.java b/assignments/src/MV3500Cohort2021JulySeptember/homework1/McNeelyTCPExample2.java
new file mode 100644
index 0000000000000000000000000000000000000000..fc40c12a19f53e231416efc2d81e898277a8e3c0
--- /dev/null
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework1/McNeelyTCPExample2.java
@@ -0,0 +1,103 @@
+package MV3500Cohort2021JulySeptember.homework1;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.net.InetAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+/**
+ * Very slightly more complex than example1. The only thing this does
+ * differently is introduce a loop into the response, so you don't
+ * have to restart the program after one response. Also, it prints
+ * out the socket pair the server sees. Run the program via telnet
+ * several times and compare the socket pairs.
+ *
+ * <code>telnet localhost 2317</code>
+ *
+ * If you're sophisticated you can contact the instructor's computer
+ * while running this program.
+ *
+ * <code>telnet ipOfServersLaptop 2317</code>
+ *
+ * And have that machine display the socket pairs received.
+ * @author mcgredo
+ * @author brutzman
+ * @author McNeely
+ */
+public class McNeelyTCPExample2
+{
+ public static void main(String[] args)
+ {
+ try
+ {
+ System.out.println("Justin McNeely's TcpExample2 has started and is waiting for a connection...");
+ System.out.println(" help: https://savage.nps.edu/Savage/developers.html#telnet");
+ System.out.println(" enter (nc localhost 2317) or (telnet localhost 2317) to win..." );
+
+ // ServerSocket waits for a connection from a client.
+ // Notice that it is outside the loop; ServerSocket needs to be made only once.
+
+ int connectionCount = 0; // state variable
+ int totalEntrantCount = 31; // spoofed entrants
+
+ ServerSocket serverSocket = new ServerSocket(2317); // server decides here what port to listen on.
+ // of interest: often client doesn't care what port it uses locally when connecting to that server port.
+
+ // Loop, infinitely, waiting for client connections.
+ // Stop the program somewhere else.
+ while(true)
+ {
+ // blocks! then proceeds once a connection is "accept"ed
+ try (Socket clientConnection = serverSocket.accept()) {
+ connectionCount++; // got another one!
+
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+
+ ps.println("This client response was written by server " + McNeelyTCPExample2.class.getName()); // to remote client
+ System.out.println("This server response was written by server " + McNeelyTCPExample2.class.getName()); // to server console
+
+ ps.println("You have attempted " + connectionCount + "times, you are now aplicant number " + totalEntrantCount + " to win. Keep trying!");
+
+ totalEntrantCount = (totalEntrantCount + 24);
+ // Print some information locally about the Socket connection.
+ // This includes the port and IP numbers on both sides (the socket pair.)
+
+ InetAddress localAddress = clientConnection.getLocalAddress();
+ InetAddress remoteAddress = clientConnection.getInetAddress();
+
+ int localPort = clientConnection.getLocalPort();
+ int remotePort = clientConnection.getPort(); // remember the prior question, why are 2 ports different?
+
+ // My socket pair connection looks like this, to localhost:
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 )) note IPv6
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
+ //
+ // Why is first IP/port the same, while the second set has different ports?
+
+ System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( " +
+ remoteAddress.toString() + ", " + remotePort + " ))");
+
+ System.out.println("got another connection! WINNING!, #" + connectionCount); // report progress
+
+ // Notice the use of flush() and close(). Without
+ // the close() to Socket object may stay open for
+ // a while after the client has stopped needing this
+ // connection. Close() explicitly ends the connection.
+ ps.flush();
+ }
+ }
+ }
+ catch(IOException e)
+ {
+ System.err.println("Problem with " + McNeelyTCPExample2.class.getName() + " networking:"); // describe what is happening
+ System.err.println("Error: " + e);
+ // Provide more helpful information to user if exception occurs due to running twice at one time
+ if (e instanceof java.net.BindException)
+ System.err.println("*** Be sure to stop any other running instances of programs using this port!");
+ }
+ }
+
+}
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework1/PughTcp2ConnectionCounting b/assignments/src/MV3500Cohort2021JulySeptember/homework1/PughTcp2ConnectionCounting
new file mode 100644
index 0000000000000000000000000000000000000000..492e78f857cc84ca5d90e986e9ba2cb65c5b6538
--- /dev/null
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework1/PughTcp2ConnectionCounting
@@ -0,0 +1,103 @@
+package MV3500Cohort2021JulySeptember.homework1.Pugh;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * Very slightly more complex than example1. The only thing this does
+ * differently is introduce a loop into the response, so you don't have to
+ * restart the program after one response. Also, it prints out the socket pair
+ * the server sees. Run the program via telnet several times and compare the
+ * socket pairs.
+ *
+ * <code>telnet localhost 2317</code>
+ *
+ * If you're sophisticated you can contact the instructor's computer while
+ * running this program.
+ *
+ * <code>telnet ipOfServersLaptop 2317</code>
+ *
+ * And have that machine display the socket pairs received.
+ *
+ * @author pugh
+ * @author brutzman
+ */
+public class PughTcp2ConnectionCounting {
+
+ /**
+ * Program invocation, execution starts here
+ *
+ * @param args command-line arguments
+ */
+ public static void main(String[] args) {
+ try {
+ System.out.println("TcpExample2ConnectionCounting has started and is waiting for a connection.");
+ System.out.println("Get Ready To Network!!!");
+ System.out.println(" help: https://savage.nps.edu/Savage/developers.html#telnet");
+ System.out.println(" enter (nc localhost 2317) or (telnet localhost 2317)...");
+
+ // ServerSocket waits for a connection from a client.
+ // Notice that it is outside the loop; ServerSocket needs to be made only once.
+ int connectionCount = 0; // state variable
+
+ ServerSocket serverSocket = new ServerSocket(2317); // server decides here what port to listen on.
+ // of interest: often client doesn't care what port it uses locally when connecting to that server port.
+
+ // Loop, infinitely, waiting for client connections.
+ // Stop the program somewhere else.
+ while (true) {
+ // blocks! then proceeds once a connection is "accept"ed
+ try ( Socket clientConnection = serverSocket.accept()) {
+ connectionCount++; // got another one!
+
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+
+ ps.println("This client response was written by server " + PughTcp2ConnectionCounting.class.getName()); // to remote client
+ System.out.println("This server response was written by server " + PughTcp2ConnectionCounting.class.getName() + "\n"); // to server console
+ if (connectionCount % 2 == 1) {
+ System.out.println("Go\n");
+ }
+ if (connectionCount % 2 == 0) {
+ System.out.println("Gators!\n");
+ }
+ if (connectionCount % 3 == 1 && connectionCount != 0) {
+ System.out.println("O'Doyle Rules!!! \n");
+ }
+ ps.println("You were connection #" + connectionCount + ", by my count");
+
+ // Print some information locally about the Socket connection.
+ // This includes the port and IP numbers on both sides (the socket pair.)
+ InetAddress localAddress = clientConnection.getLocalAddress();
+ InetAddress remoteAddress = clientConnection.getInetAddress();
+
+ int localPort = clientConnection.getLocalPort();
+ int remotePort = clientConnection.getPort(); // remember the prior question, why are 2 ports different?
+
+ // My socket pair connection looks like this, to localhost:
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 )) note IPv6
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
+ //
+ // Why is first IP/port the same, while the second set has different ports?
+ System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( "
+ + remoteAddress.toString() + ", " + remotePort + " ))");
+
+ System.out.println("got another connection, #" + connectionCount); // report progress
+
+ // Notice the use of flush() and close(). Without
+ // the close() to Socket object may stay open for
+ // a while after the client has stopped needing this
+ // connection. Close() explicitly ends the connection.
+ ps.flush();
+ }
+ }
+ } catch (IOException e) {
+ System.err.println("Problem with " + PughTcp2ConnectionCounting.class.getName() + " networking:"); // describe what is happening
+ System.err.println("Error: " + e);
+ // Provide more helpful information to user if exception occurs due to running twice at one time
+ if (e instanceof java.net.BindException) {
+ System.err.println("*** Be sure to stop any other running instances of programs using this port!");
+ }
+ }
+ }
+}
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework1/PughTcp2ConnectionCounting.java b/assignments/src/MV3500Cohort2021JulySeptember/homework1/PughTcp2ConnectionCounting.java
new file mode 100644
index 0000000000000000000000000000000000000000..492e78f857cc84ca5d90e986e9ba2cb65c5b6538
--- /dev/null
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework1/PughTcp2ConnectionCounting.java
@@ -0,0 +1,103 @@
+package MV3500Cohort2021JulySeptember.homework1.Pugh;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * Very slightly more complex than example1. The only thing this does
+ * differently is introduce a loop into the response, so you don't have to
+ * restart the program after one response. Also, it prints out the socket pair
+ * the server sees. Run the program via telnet several times and compare the
+ * socket pairs.
+ *
+ * <code>telnet localhost 2317</code>
+ *
+ * If you're sophisticated you can contact the instructor's computer while
+ * running this program.
+ *
+ * <code>telnet ipOfServersLaptop 2317</code>
+ *
+ * And have that machine display the socket pairs received.
+ *
+ * @author pugh
+ * @author brutzman
+ */
+public class PughTcp2ConnectionCounting {
+
+ /**
+ * Program invocation, execution starts here
+ *
+ * @param args command-line arguments
+ */
+ public static void main(String[] args) {
+ try {
+ System.out.println("TcpExample2ConnectionCounting has started and is waiting for a connection.");
+ System.out.println("Get Ready To Network!!!");
+ System.out.println(" help: https://savage.nps.edu/Savage/developers.html#telnet");
+ System.out.println(" enter (nc localhost 2317) or (telnet localhost 2317)...");
+
+ // ServerSocket waits for a connection from a client.
+ // Notice that it is outside the loop; ServerSocket needs to be made only once.
+ int connectionCount = 0; // state variable
+
+ ServerSocket serverSocket = new ServerSocket(2317); // server decides here what port to listen on.
+ // of interest: often client doesn't care what port it uses locally when connecting to that server port.
+
+ // Loop, infinitely, waiting for client connections.
+ // Stop the program somewhere else.
+ while (true) {
+ // blocks! then proceeds once a connection is "accept"ed
+ try ( Socket clientConnection = serverSocket.accept()) {
+ connectionCount++; // got another one!
+
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+
+ ps.println("This client response was written by server " + PughTcp2ConnectionCounting.class.getName()); // to remote client
+ System.out.println("This server response was written by server " + PughTcp2ConnectionCounting.class.getName() + "\n"); // to server console
+ if (connectionCount % 2 == 1) {
+ System.out.println("Go\n");
+ }
+ if (connectionCount % 2 == 0) {
+ System.out.println("Gators!\n");
+ }
+ if (connectionCount % 3 == 1 && connectionCount != 0) {
+ System.out.println("O'Doyle Rules!!! \n");
+ }
+ ps.println("You were connection #" + connectionCount + ", by my count");
+
+ // Print some information locally about the Socket connection.
+ // This includes the port and IP numbers on both sides (the socket pair.)
+ InetAddress localAddress = clientConnection.getLocalAddress();
+ InetAddress remoteAddress = clientConnection.getInetAddress();
+
+ int localPort = clientConnection.getLocalPort();
+ int remotePort = clientConnection.getPort(); // remember the prior question, why are 2 ports different?
+
+ // My socket pair connection looks like this, to localhost:
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 )) note IPv6
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
+ //
+ // Why is first IP/port the same, while the second set has different ports?
+ System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( "
+ + remoteAddress.toString() + ", " + remotePort + " ))");
+
+ System.out.println("got another connection, #" + connectionCount); // report progress
+
+ // Notice the use of flush() and close(). Without
+ // the close() to Socket object may stay open for
+ // a while after the client has stopped needing this
+ // connection. Close() explicitly ends the connection.
+ ps.flush();
+ }
+ }
+ } catch (IOException e) {
+ System.err.println("Problem with " + PughTcp2ConnectionCounting.class.getName() + " networking:"); // describe what is happening
+ System.err.println("Error: " + e);
+ // Provide more helpful information to user if exception occurs due to running twice at one time
+ if (e instanceof java.net.BindException) {
+ System.err.println("*** Be sure to stop any other running instances of programs using this port!");
+ }
+ }
+ }
+}
diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework1/SchlesselTcpExample1Telnet.java b/assignments/src/MV3500Cohort2021JulySeptember/homework1/SchlesselTcpExample1Telnet.java
new file mode 100644
index 0000000000000000000000000000000000000000..fa2565785de76a5753d4368ab87c75adce506373
--- /dev/null
+++ b/assignments/src/MV3500Cohort2021JulySeptember/homework1/SchlesselTcpExample1Telnet.java
@@ -0,0 +1,65 @@
+package TcpExamples;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * Homework 1
+ *
+ * @author max schlessel
+ */
+public class SchlesselTcpExample1Telnet
+{
+ /**
+ * Program invocation, execution starts here
+ * @param args command-line arguments
+ */
+ public static void main(String[] args)
+ {
+ try
+ {
+ System.out.println(SchlesselTcpExample1Telnet.class.getName() + " has started and is waiting for a connection.");
+ System.out.println(" help: https://savage.nps.edu/Savage/developers.html#telnet");
+ System.out.println(" enter (telnet localhost 2317) or (nc localhost 2317)..." );
+
+ // The ServerSocket waits for a connection from a client.
+ // It returns a Socket object when the connection occurs.
+ ServerSocket serverSocket = new ServerSocket(2317);
+
+ // Use Java io classes to write text (as opposed to
+ // unknown bytes of some sort) to the client
+
+ // The Socket object represents the connection between
+ // the server and client, including a full duplex connection
+ try (Socket clientConnection = serverSocket.accept()) // wait here for a client to connect
+ {
+ // OK we got something, time to respond!
+ // Use Java io classes to write text (as opposed to
+ // unknown bytes of some sort) to the client
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+
+ ps.println("This client response was written by Max's client " + SchlesselTcpExample1Telnet.class.getName()); // to remote client
+ ps.println("aka the shot heard round the world");
+ System.out.println("This server response was written by Max's server " + SchlesselTcpExample1Telnet.class.getName()); // to server console
+ System.out.println("boom");
+
+ // "flush()" in important in that it forces a write
+ // across what is in fact a slow connection
+ ps.flush();
+ }
+ System.out.println(SchlesselTcpExample1Telnet.class.getName() + " completed successfully.");
+ }
+ catch(IOException e)
+ {
+ System.err.println("Exception with " + SchlesselTcpExample1Telnet.class.getName() + " networking:"); // describe what is happening
+ System.err.println(e);
+ // Provide more helpful information to user if exception occurs due to running twice at one time
+
+ // brute force exception checking, can be brittle if exception message changes
+ // if (e.getMessage().equals("Address already in use: NET_Bind"))
+ if (e instanceof java.net.BindException)
+ System.err.println("*** Be sure to stop any other running instances of programs using this port!");
+ }
+ }
+}