1 files changed, 91 insertions, 0 deletions
diff --git a/server_bonus.c b/server_bonus.c
new file mode 100644
index 0000000..f47fd62
--- /dev/null
+++ b/server_bonus.c
@@ -0,0 +1,91 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   server_bonus.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: kdx    <kdx   @student.42angouleme.fr      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/10/09 03:37:08 by kdx               #+#    #+#             */
+/*   Updated: 2022/10/12 05:40:59 by kdx              ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft/libft.h"
+#include <unistd.h>
+#include <signal.h>
+
+static uint8_t	*g_buffer;
+
+static void	buffer_append(uint8_t byte)
+{
+	uint8_t	*new_buffer;
+	size_t	len;
+
+	if (g_buffer == NULL)
+	{
+		g_buffer = ft_calloc(2, sizeof(char));
+		if (g_buffer == NULL)
+			exit(1);
+		g_buffer[0] = byte;
+	}
+	else
+	{
+		len = ft_strlen((char *)g_buffer);
+		new_buffer = ft_calloc(len + 2, sizeof(char));
+		if (new_buffer == NULL)
+		{
+			ft_free(g_buffer);
+			exit(1);
+		}
+		ft_strlcpy((char *)new_buffer, (char *)g_buffer, -1);
+		new_buffer[len] = byte;
+		ft_free(g_buffer);
+		g_buffer = new_buffer;
+	}
+}
+
+static void	handler(int signum)
+{
+	static uint8_t	byte;
+	static size_t	bit;
+
+	byte |= (signum == SIGUSR2) << bit;
+	bit += 1;
+	if (bit >= 8)
+	{
+		if (g_buffer != NULL && byte == 0)
+		{
+			write(1, g_buffer, ft_strlen((char *)g_buffer));
+			ft_free(g_buffer);
+			g_buffer = NULL;
+		}
+		else if (byte != 0)
+			buffer_append(byte);
+		byte = 0;
+		bit = 0;
+	}
+	return ;
+}
+
+static void	sigint_handler(int signum)
+{
+	(void)signum;
+	ft_free(g_buffer);
+	exit(0);
+}
+
+int	main(void)
+{
+	pid_t	pid;
+
+	pid = getpid();
+	if (signal(SIGUSR1, handler) == SIG_ERR || signal(SIGUSR2, handler))
+		return (1);
+	if (signal(SIGINT, sigint_handler) == SIG_ERR)
+		return (1);
+	ft_puti128_fd(pid, 1);
+	ft_putchar_fd('\n', 1);
+	while (1)
+		;
+	return (0);
+}