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server_bonus.c
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server_bonus.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* server_bonus.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ttavares <ttavares@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/01/19 10:47:26 by ttavares #+# #+# */
/* Updated: 2023/01/19 12:17:51 by ttavares ### ########.fr */
/* */
/* ************************************************************************** */
#include "minitalk.h"
void one(int signal, siginfo_t *info, void *s)
{
static char c = 0xFF;
static int total = 0;
(void)s;
if (signal == SIGUSR1)
c ^= 128 >> total;
else if (signal == SIGUSR2)
c |= 128 >> total;
total++;
if (total == 8)
{
if (c != 0)
write(1, &c, 1);
else
{
write(1, "\n", 1);
kill(info->si_pid, SIGUSR1);
}
total = 0;
c = 0xFF;
}
}
int main(int argc, char **argv)
{
int pid;
struct sigaction sa;
(void)argv;
if (argc != 1)
{
ft_printf("Error, too many arguments! Quitting... \n");
return (0);
}
pid = getpid();
ft_printf("PID: %d\n", pid);
sa.sa_handler = SIG_DFL;
sa.sa_sigaction = one;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
sigaction(SIGUSR1, &sa, NULL);
sigaction(SIGUSR2, &sa, NULL);
while (1)
pause();
return (0);
}