client.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   client.c                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: isel-azz <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/05/15 12:53:31 by isel-azz          #+#    #+#             */
/*   Updated: 2024/05/15 12:53:35 by isel-azz         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minitalk.h"

int	ft_atoi(const char *str)
{
	int	neg;
	int	i;
	int	num;

	i = 0;
	neg = 1;
	num = 0;
	while (str[i] == ' ' || str[i] == '\n' || str[i] == '\t'
		|| str[i] == '\v' || str[i] == '\f' || str[i] == '\r')
		i++;
	if (str[i] == '-' || str[i] == '+')
	{
		if (str[i] == '-')
			neg *= -1;
		i++;
	}
	while (str[i] >= 48 && str[i] <= 57)
	{
		num = num * 10 + (str[i] - 48);
		i++;
	}
	return (num * neg);
}

void	send_signals(int pid, char c)
{
	int				i;

	i = 7;
	while (i >= 0)
	{
		if (((c >> i) & 1) == 1)
			kill(pid, SIGUSR1);
		else
			kill(pid, SIGUSR2);
		usleep(200);
		i--;
	}
}

void	handler(int sig, siginfo_t *info, void *context)
{
	info = NULL;
	context = NULL;
	if (sig == SIGUSR1)
		write(1, "well recieved\n", 14);
	exit(0);
}

int	main(int argc, char **argv)
{
	int					i;

	if (argc == 3)
	{
		i = 0;
		while (argv[2][i])
			send_signals(ft_atoi(argv[1]), argv[2][i++]);
		send_signals(ft_atoi(argv[1]), '\0');
	}
	else
		write(1, "Error\n", 6);
	return (0);
}