TCP Server-Client Program in C

This repository contains a steam server-client written in the C programming language.

Features

• Customize IP/hostname and port on the command line for client connection.
• Send simple string between server and client.
• Telnet to the server

Prerequisites

Before compiling and running this program, following prerequisites must be met:

• Linux/Unix based OS
• C Compiler (e.g. Clang, GCC)

Installation

1. Clone this repository to your local machinine.

• SSH: [email protected]:r-karunathilake/tcp_server_client.git
• HTTPS: https://github.com/r-karunathilake/tcp_server_client.git

2. Compile the the server and client programs using your C compiler of choice:
   • Manually: clang -std=gnu17 server.c -o server etc.
   • Makefile: make all
   • Makefile with debug information: make BUILD=DEV

Usage

You can run the server as follows: ./server. This will bind the server to the host IP on port 666 (can be changed by updating the macro in server.c).

Note: require super user privileges to run the program.

The server client can be run by executing the following command: ./client [arguments]

Replace [arguments] with the following:

• -i <Server IP/Hostname>: (Required) Specify the server hostname or IP to connect/
• -p <Server Port Number>: (Required) Specify the listen port for the server on the server host machine.
• -h: (Optional) Display commandline usage information.

License

This packet capture program is open-source and available under the MIT License.

Author

Ravindu Karunathilake 
Email: [email protected]
GitHub: https://github.com/r-karunathilake

References

1. Beej's Guide to Network Programming by Brian Hall