minitalk's Introduction

Minitalk

Overview

Minitalk is a communication program implemented in C, utilizing UNIX signals to enable message exchange between a client and a server. This project is part of the 42 School curriculum, showcasing skills in system programming and inter-process communication.

Components

Server (server.c): The server program runs continuously, waiting for messages from clients. It prints the received message to the standard output. The server's PID is displayed upon startup.
Client (client.c): The client program sends a string to the server. It requires the server's PID and the string to be sent as command-line arguments.
Utilities (utils.c): This file contains utility functions like ft_strlen, ft_atoi, and ft_putnbr used by both the client and server.
Header File (minitalk.h): The header file includes necessary library imports and declarations of utility functions.

Compilation

The project can be compiled using the provided Makefile:

To compile both the server and client: make all
To clean up object files: make clean
To remove objects and binary files: make fclean
To recompile: make re

Usage

Start the server to get its PID:
```
./server
```
Use the client to send a message to the server using its PID:
```
./client [Server_PID] [Message]
```

Implementation Details

The server uses signal handlers to assemble characters from bits sent by the client.
The client sends characters as a series of bits using UNIX signals (SIGUSR1 for 0, SIGUSR2 for 1).
Both programs handle errors and edge cases, ensuring robust communication.

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