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client.c
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client.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* client.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: fatkeski <fatkeski@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/02/25 16:41:51 by fatkeski #+# #+# */
/* Updated: 2024/02/25 16:54:57 by fatkeski ### ########.fr */
/* */
/* ************************************************************************** */
#include "minitalk.h"
static int ft_atoi(const char *str)
{
int i;
int sign;
int result;
i = 0;
sign = 1;
while ((str[i] >= 9 && str[i] <= 13) || str[i] == 32)
i++;
if (str[i] == '-' || str[i] == '+')
{
if (str[i] == '-')
sign = -1;
i++;
}
result = 0;
while (str[i] >= '0' && str[i] <= '9')
{
result = (result * 10) + (str[i] - 48);
i++;
}
return (sign * result);
}
static void send_signal(pid_t id, char *message)
{
int i;
int j;
char result;
i = 0;
while (message[i] != '\0')
{
j = 7;
while (j >= 0)
{
result = (message[i] >> j) & 1;
if (result == 1)
kill(id, SIGUSR1);
else if (result == 0)
kill(id, SIGUSR2);
usleep(142);
j--;
}
i++;
}
}
int main(int argc, char *argv[])
{
pid_t server_id;
if (argc == 3)
{
server_id = ft_atoi(argv[1]);
send_signal(server_id, argv[2]);
}
else
write(1, "the requested number of arguments was not entered", 50);
return (0);
}