server.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   server.c                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: gudaniel <gudaniel@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/07/29 08:45:33 by gudaniel          #+#    #+#             */
/*   Updated: 2024/07/30 12:12:07 by gudaniel         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minitalk.h"

void	server_art(void)
{
	ft_printf(RED "   \t\t\t\t     ▄████  █    ██   ██████             \n");
	ft_printf(RED "   \t\t\t\t     ██▒ ▀█▒ ██  ▓██▒▒██    ▒             \n");
	ft_printf(RED "   \t\t\t\t   ▒██░▄▄▄░▓██  ▒██░░ ▓██▄               \n");
	ft_printf(RED "   \t\t\t\t   ░▓█  ██▓▓▓█  ░██░  ▒   ██▒            \n");
	ft_printf(RED "   \t\t\t\t   ░▒▓███▀▒▒▒█████▓ ▒██████▒▒            \n");
	ft_printf(RED "   \t\t\t\t   ░▒   ▒ ░▒▓▒ ▒ ▒ ▒ ▒▓▒ ▒ ░            \n");
	ft_printf(RED "   \t\t\t\t    ░   ░ ░░▒░ ░ ░ ░ ░▒  ░ ░            \n");
	ft_printf(RED "   \t\t\t\t\t   ░ ░   ░  ░░░ ░ ░ ░  ░  ░              \n");
	ft_printf(RED "   \t\t\t\t\t         ░    ░           ░              \n");
	ft_printf("                                                     \n");
	ft_printf(RED "\t\t\t ██████ ▓█████  ██▀███   ██▒   █▓▓█████  ██▀███  \n");
	ft_printf(RED "\t\t\t▒██    ▒ ▓█   ▀ ▓██ ▒ ██▒▓██░   █▒▓█   ▀ ▓██ ▒ ██▒\n");
	ft_printf(RED "\t\t\t░ ▓██▄   ▒███   ▓██ ░▄█ ▒ ▓██  █▒░▒███   ▓██ ░▄█ ▒\n");
	ft_printf(RED "\t\t\t  ▒   ██▒▒▓█  ▄ ▒██▀▀█▄    ▒██ █░░▒▓█  ▄ ▒██▀▀█▄  \n");
	ft_printf(RED "\t\t\t▒██████▒▒░▒████▒░██▓ ▒██▒   ▒▀█░  ░▒████▒░██▓ ▒██▒\n");
	ft_printf(RED "\t\t\t▒ ▒▓▒ ▒ ░░░ ▒░ ░░ ▒▓ ░▒▓░   ░ ▐░  ░░ ▒░ ░░ ▒▓ ░▒▓░\n");
	ft_printf(RED "\t\t\t░ ░▒  ░ ░ ░ ░  ░  ░▒ ░ ▒░   ░ ░░   ░ ░  ░  ░▒ ░ ▒░\n");
	ft_printf(RED "\t\t\t░  ░  ░     ░     ░░   ░      ░░     ░     ░░   ░ \n");
	ft_printf(RED "\t\t\t      ░     ░  ░   ░           ░     ░  ░   ░     \n");
	ft_printf(RED "\t\t                               ░                   \n");
	ft_printf("\n");
}
/**
 * @brief Join a string with a character
 * @param s1 The string to join
 * @param c The character to join
 * @param string The new string
 * @param size The size of the string
 * @param i The index
 * @return char*
 */

char	*ft_strcjoin(char const *s1, char c)
{
	int		size;
	int		i;
	char	*string;

	if (s1)
		size = ft_strlen(s1);
	else
		size = 0;
	string = (char *)malloc(sizeof(char) * (size + 2));
	if (!string)
	{
		free(string);
		return (NULL);
	}
	i = -1;
	while (s1[++i])
		string[i] = s1[i];
	string[i++] = c;
	string[i] = '\0';
	return (string);
}

/**
 * @brief Convert the bits to ascii
 * @param sig The signal
 * @param bits The number of bits
 * @param i The index
 * @param str The string
 * @param temp The temporary string
 * @return void
 */
void	bit_ascii(int sig)
{
	static int	bits;
	static int	i;
	static char	*str;
	char		*temp;

	if (!str)
		str = ft_calloc(1, 1);
	if (sig == SIGUSR1)
		i |= (1 << bits);
	bits++;
	if (bits == 8)
	{
		temp = ft_strcjoin(str, (char)i);
		free(str);
		str = temp;
		if (i == 0)
		{
			ft_printf("%s\n", str);
			free(str);
			str = NULL;
		}
		bits = 0;
		i = 0;
	}
}

/**
 * @brief The core of the server side, where we receive 
 * the string from the client
 * @param argc The number of arguments
 * @param argv The arguments
 * @param pid The process id
 * @return int
 */
int	main(int argc, char **argv)
{
	int	pid;

	(void)argv;
	if (argc != 1)
	{
		ft_printf("%s", "Error\n");
		return (1);
	}
	pid = getpid();
	server_art();
	ft_printf(WHT "The server is open\n");
	ft_printf(WHT "$ [PID]: %d \n", pid);
	ft_printf(WHT "$ %s \n", "Output:");
	while (argc == 1)
	{
		signal(SIGUSR1, bit_ascii);
		signal(SIGUSR2, bit_ascii);
		pause();
	}
	return (0);
}