main_client_bonus.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   main_client_bonus.c                                :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: HINATA <HINATA@student.42tokyo.jp>         +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/09/29 20:38:07 by HINATA            #+#    #+#             */
/*   Updated: 2021/09/29 20:38:07 by HINATA           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minitalk.h"

void	write_error(char *s)
{
	ft_putendl_fd(s, 1);
	exit(0);
}

static void	pid_handler(char *s_pid, char *s)
{
	unsigned int	pid;
	int				i;
	int				j;

	pid = ft_atoi(s_pid);
	j = 0;
	while (s[j] != '\0')
	{
		i = 0;
		while (i < 8)
		{
			if (kill(pid, (int []){SIGUSR1, SIGUSR2}[(s[j] >> i) & 1]) == -1)
				write_error("\e[31mBAD PID( !_!)\e[m");
			usleep(600);
			i++;
		}
		j++;
	}
}

int	main(int argc, char **argv)
{
	if (argc != 3)
		write_error("\e[31mCOMMAND( !_!): ./client [server-pid] [message]\e[m");
	pid_handler(argv[1], argv[2]);
	return (0);
}