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server_src/main.c

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   main.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/01/20 15:19:31 by cchauvet          #+#    #+#             */
+/*   Updated: 2023/01/20 17:22:03 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <signal.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "../libftx/libftx.h"
+
+char	*ft_tab_int_to_str(int *tab, size_t len)
+{
+	char	*str;
+	size_t	i;
+
+	str = ft_calloc(len / (sizeof(char) * 8) + 1, sizeof(char));
+	i = 0;
+	while (i < len)
+	{
+		str[i / (sizeof(char) * 8)] = str[i / (sizeof(char) * 8)] * 2 + tab[i];
+		i++;
+	}
+	return (str);
+}
+
+int	ft_is_finished(int *tab, size_t len)
+{
+	size_t			i;
+	unsigned long	sum;
+
+	if (len >= sizeof(char) * 8 && len % sizeof(char) * 8 == 0)
+	{
+		sum = 0;
+		i = len - sizeof(char) * 8;
+		while (i < len)
+		{
+			sum += tab[i];
+			i++;
+		}
+		return (sum == 0);
+	}
+	return (0);
+}
+
+void	handler(int num)
+{
+	static int		*tab = NULL;
+	static size_t	len = 0;
+	char			*str;
+
+	tab = ft_realloc(tab, len, len + 1, sizeof(int));
+	if (tab == NULL)
+		return ;
+	if (len == 0)
+		tab[0] = num;
+	else
+		tab[len] = num == tab[0];
+	len++;
+	if (ft_is_finished(tab + 1, len - 1))
+	{
+		str = ft_tab_int_to_str(tab + 1, len - 1);
+		ft_printf("%s\n", str);
+		str = NULL;
+		len = 0;
+	}
+}
+
+int	main(void)
+{
+	signal(SIGUSR1, handler);
+	signal(SIGUSR2, handler);
+	ft_printf("PID: %d\n", getpid());
+	while (1)
+		;
+}