From 83d88681a2df4b2c6984385a102d413f1c5c2f1c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Gu=C3=A9len?=
 <jguelen@student.42lehavre.fr>
Date: Fri, 21 Feb 2025 15:10:46 +0100
Subject: [PATCH] Signal: A basic version for the capture of signals.

---
 src/sig/sig.c | 41 ++++++++++++++++++++++++-----------------
 src/sig/sig.h |  6 +++++-
 2 files changed, 29 insertions(+), 18 deletions(-)

diff --git a/src/sig/sig.c b/src/sig/sig.c
index 494aed1..2bd4b11 100644
--- a/src/sig/sig.c
+++ b/src/sig/sig.c
@@ -6,15 +6,31 @@
 /*   By: jguelen <marvin@42.fr>                     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/02/20 10:26:05 by jguelen           #+#    #+#             */
-/*   Updated: 2025/02/20 18:03:06 by jguelen          ###   ########.fr       */
+/*   Updated: 2025/02/21 14:48:48 by jguelen          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "sig.h"
 
-// TODO Check the return values and implement handlers
+int	g_signum = 0;
 
-int set_interactive_mode_sig_handling(void)
+static void	sig_interactive(int signum)
+{
+	g_signum = signum;
+}
+
+/*
+** Ignores the signal if it was sent by a kill command.
+*/
+static void	ignoreif_sent_by_kill(int signum, siginfo_t *siginfo, void *context)
+{
+	(void *)context;
+	if (siginfo->si_code == SI_USER)
+		return ;
+	g_signum = signum;
+}
+
+int	set_interactive_mode_sig_handling(void)
 {
 	struct sigaction	sig_act;
 
@@ -30,27 +46,18 @@ int set_interactive_mode_sig_handling(void)
 	return (0);
 }
 
-/*
-** in case a SIGINT is sent by kill
-** deals with a SIGQUIT the same way as above
-*/
-int set_exec_mode_sig_handling(void)
+int	set_exec_mode_sig_handling(void)
 {
 	struct sigaction	sig_act;
-	struct sigaction	sig_hand;
 
 	ft_bzero(&sig_act);
 	if (sigemptyset(sig_act.sa_mask) == -1)
 		return (-1);
-	sig_act.sa_sigaction = &ignoreif_sent_by_kill; //ignore if code == SI_USER
+	sig_act.sa_sigaction = &ignoreif_sent_by_kill;
 	sig_act.sa_flags |= SA_SIGINFO;
 	if (sigaction(SIGINT, &sig_act, NULL) == -1)
 		return (-1);
-	ft_bzero(&sig_hand);
-	if (sigemptyset(sig_hand.sa_mask) == -1)
-		return (-1);
-	sig_hand.sa_handler = SIG_DFL;
-	if (sigaction(SIGQUIT, &sig_hand, NULL) == -1)
+	if (sigaction(SIGQUIT, &sig_act, NULL) == -1)
 		return (-1);
 	return (0);
 }
@@ -61,7 +68,7 @@ int set_exec_mode_sig_handling(void)
 ** @RETURN Return 0 i case of success, -1 in case of error and errno is set
 ** to indicate the error.
 */
-int set_default_sig_handling(void)
+int	set_default_sig_handling(void)
 {
 	struct sigaction	sig;
 	int					i;
@@ -71,7 +78,7 @@ int set_default_sig_handling(void)
 	if (sigemptyset(sig.sa_mask) == -1)
 		return (-1);
 	i = 0;
-	while (i < 128)
+	while (i < NSIG)
 	{
 		if (sigaction(i, &sig, NULL) == -1)
 			return (-1);
diff --git a/src/sig/sig.h b/src/sig/sig.h
index 6cfb533..c46fe50 100644
--- a/src/sig/sig.h
+++ b/src/sig/sig.h
@@ -6,7 +6,7 @@
 /*   By: jguelen <jguelen@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/02/19 18:21:55 by jguelen           #+#    #+#             */
-/*   Updated: 2025/02/20 16:37:19 by jguelen          ###   ########.fr       */
+/*   Updated: 2025/02/21 13:52:47 by jguelen          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,6 +17,10 @@
 # include <stddef.h>
 # include <asm-generic/signal-defs.h>
 
+# define NSIG 64
+
+extern int	g_signum;
+
 int		set_interactive_mode_sig_handling(void);
 int		set_exec_mode_sig_handling(void);
 int		set_default_sig_handling(void);