42_minitalk/client_src/main.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   main.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/01/20 17:06:30 by cchauvet          #+#    #+#             */
/*   Updated: 2023/01/20 18:36:25 by cchauvet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <signal.h>
#include "../libftx/libftx.h"

void	ft_char2signal(int pid, char c)
{
	size_t	i;

	i = sizeof(char) * 8;
	while (i > 0)
	{
		if ((c >> (i - 1)) & 1)
			kill(pid, SIGUSR2);
		else
			kill(pid, SIGUSR1);
		usleep(5);
		i--;
	}
}

int	main(int ac, char **av)
{
	int		pid;
	size_t	i;

	if (ac != 3 || !ft_isnum(av[1]))
	{
		ft_printf("Argument error !");
		return (1);
	}
	pid = ft_atoi(av[1]);
	kill(pid, SIGUSR2);
	i = 0;
	while (av[2][i] != '\0')
	{
		ft_char2signal(pid, av[2][i]);
		i++;
	}
	ft_char2signal(pid, '\0');
	return (0);
}