diff --git a/src/sig/sig.c b/src/sig/sig.c
new file mode 100644
index 0000000..494aed1
--- /dev/null
+++ b/src/sig/sig.c
@@ -0,0 +1,81 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   sig.c                                              :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jguelen <marvin@42.fr>                     +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/02/20 10:26:05 by jguelen           #+#    #+#             */
+/*   Updated: 2025/02/20 18:03:06 by jguelen          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "sig.h"
+
+// TODO Check the return values and implement handlers
+
+int set_interactive_mode_sig_handling(void)
+{
+	struct sigaction	sig_act;
+
+	ft_bzero(&sig_act);
+	sig_act.sa_handler = &sig_int_new_prompt;
+	if (sigemptyset(sig_act.sa_mask) == -1)
+		return (-1);
+	if (sigaction(SIGINT, &sig_act, NULL) == -1)
+		return (-1);
+	sig_act.sa_handler = SIG_IGN;
+	if (sigaction(SIGQUIT, &sig_act, NULL) == -1)
+		return (-1);
+	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)
+{
+	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_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)
+		return (-1);
+	return (0);
+}
+
+/*
+** Can be used at the start of a child process.
+** Check if necessary since execve is executed.
+** @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)
+{
+	struct sigaction	sig;
+	int					i;
+
+	ft_bzero(&sig);
+	sig.sa_handler = SIG_DFL;
+	if (sigemptyset(sig.sa_mask) == -1)
+		return (-1);
+	i = 0;
+	while (i < 128)
+	{
+		if (sigaction(i, &sig, NULL) == -1)
+			return (-1);
+		i++;
+	}
+	return (0);
+}
diff --git a/src/sig/sig.h b/src/sig/sig.h
new file mode 100644
index 0000000..6cfb533
--- /dev/null
+++ b/src/sig/sig.h
@@ -0,0 +1,24 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   sig.h                                              :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   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       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef SIG_H
+# define SIG_H
+
+# include <signal.h>
+# include <stddef.h>
+# include <asm-generic/signal-defs.h>
+
+int		set_interactive_mode_sig_handling(void);
+int		set_exec_mode_sig_handling(void);
+int		set_default_sig_handling(void);
+
+#endif