tcp-socket-options

TCP client-server program to list and manipulate socket options.

Prerequisites

This application is primarily designed to run on Texas State (TXST) Linux servers. Eros: EROS.CS.TXSTATE.EDU (147.26.231.153) Zeus: ZEUS.CS.TXSTATE.EDU (147.26.231.156)

You may use WinSCP, FileZilla or equivalent to transer the ZIP to a TXST Linux host.
Drop the ZIP in a directory you own (e.g., /home/Students/bss64)

Open permissions: chmod 755 *.zip Unzip: unzip <zip-file-name>.zip Go into directory: cd tcp-socket-options-main

The g++ compiler with support for C++11, Make, Zip, and standard Linux libraries are required.

Report

The assignment report is located under: resources/reports directory.

To navigate there, cd into the directory:

cd resources/reports

How To: Build this program

In the root directory: make

This will produce two binary files.

1. server
2. client

To manually build this application without using Make:

1. g++ -o client src/tcp_client.cpp -g -std=c++11
2. g++ -o server src/tcp_server.cpp -g -std=c++11

How To: Run this program

Ensure you are in the root project directory. First, invoke the TCP server binary: ./server

Next, invoke the client ideally from a different TXST server. For example, run the server on Eros and the Client on Zeus.

./client <hostname> <port>

Full example invocation: ./client eros.cs.txstate.edu 5001

Why C++11?

A small aside but worth mentioning. Why use c++11 compiler? C++11 now supports:

• lambda expressions,
• automatic type deduction of objects,
• uniform initialization syntax,
• delegating constructors,
• deleted and defaulted function declarations,
• nullptr,
• rvalue references "The C++11 Standard Library was also revamped with new algorithms, new container classes, atomic operations, type traits, regular expressions, new smart pointers, async() facility, and of course a multithreading library"

References

[1] https://stackoverflow.com/questions/9402254/how-do-you-run-a-function-on-exit-in-c
[2] https://notes.shichao.io/unp/ch7/#so_broadcast-socket-option
[3] https://www.bogotobogo.com/cplusplus/sockets_server_client.php
[4] https://www.beej.us/guide/bgnet/html/
[5] https://smartbear.com/blog/develop/the-biggest-changes-in-c11-and-why-you-should-care/ [6] https://stackoverflow.com/questions/4654636/how-to-determine-if-a-string-is-a-number-with-c [7] https://linux.die.net/man/7/tcp
[8] W. R. Stevens, Bill Fenner, and Andrew M. Rudoff. UNIX Network Programming – Networking APIs: Sockets and XTI (3nd ed.). Addison-Wesley, 2004. ISBN: 0-13-141155-1.