From 3d66fbe9a9b09bbbb1c5c9c6d2e19cc965196f14 Mon Sep 17 00:00:00 2001
From: Etienne Rey-bethbeder <erey-bet@1C4.42angouleme.fr>
Date: Fri, 24 Feb 2023 12:46:02 +0100
Subject: [PATCH] =?UTF-8?q?NIQUE=20TA=20GROSSE=20M=C3=88RE=20LA=20SALOPE?=
 =?UTF-8?q?=20PUTE=20PUTE=20-Camille=20Chauvet=202004/2023?=
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---
 Makefile              |  4 ++--
 builtins/exit.c       | 46 +++++++++++++++++++++++++++++++++++++++
 builtins/export.c     |  4 ++--
 minishell.h           | 10 +++++----
 utils/ft_atoi_check.c | 50 +++++++++++++++++++++++++++++++++++++++++++
 utils/utils.h         |  1 +
 6 files changed, 107 insertions(+), 8 deletions(-)
 create mode 100644 builtins/exit.c
 create mode 100644 utils/ft_atoi_check.c

diff --git a/Makefile b/Makefile
index 7b48749..2456888 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
-UTILS_SRC = utils/ft_is_in_quote.c utils/ft_strncpy.c utils/ft_strreplace.c utils/ft_strnchr.c utils/ft_split_quoted.c utils/ft_strshift.c utils/ft_quote_remover.c utils/ft_str_is_empty.c
-SRCS = ${UTILS_SRC} main.c file.c infile.c outfile.c heredoc.c syntatics.c cmd.c cmds.c env.c env2.c env3.c execution.c spacer.c env_fill.c builtins/echo.c builtins/pwd.c builtins/export.c builtins/env.c builtins/cd.c
+UTILS_SRC = utils/ft_is_in_quote.c utils/ft_strncpy.c utils/ft_strreplace.c utils/ft_strnchr.c utils/ft_split_quoted.c utils/ft_strshift.c utils/ft_quote_remover.c utils/ft_str_is_empty.c utils/ft_atoi_check.c
+SRCS = ${UTILS_SRC} main.c file.c infile.c outfile.c heredoc.c syntatics.c cmd.c cmds.c env.c env2.c env3.c execution.c spacer.c env_fill.c builtins/echo.c builtins/pwd.c builtins/export.c builtins/env.c builtins/cd.c builtins/exit.c
 
 OBJS = ${SRCS:.c=.o}
 
diff --git a/builtins/exit.c b/builtins/exit.c
new file mode 100644
index 0000000..688f3a6
--- /dev/null
+++ b/builtins/exit.c
@@ -0,0 +1,46 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   exit.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/02/24 10:17:59 by erey-bet          #+#    #+#             */
+/*   Updated: 2023/02/24 12:44:05 by erey-bet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../minishell.h"
+
+static int	error(int err, char *reason, char *problem, int fd)
+{
+	write(fd, "bash: exit: ", 12);
+	if (problem != NULL)
+	{
+		ft_putstr_fd(problem, fd);
+		write(fd, ": ", 2);
+	}
+	ft_putstr_fd(reason, fd);
+	write(fd, "\n", 1);
+	return (err);
+}
+
+int	ft_exit(char **args, int fd)
+{
+	int	i;
+
+	if (args[0] == NULL)
+		return (0);
+	i = -1;
+	if (ft_atoi_check(args[0]) == 0) 
+		return (error(2, "numeric argument required", args[0], fd));
+	if (args[1] != NULL)
+		return (error(-1, "too many arguments", NULL, fd));
+	return (0);
+}
+
+int	main(int argc, char *argv[])
+{
+	(void)argc;
+	return(ft_exit(argv + 1, 1));
+}
diff --git a/builtins/export.c b/builtins/export.c
index fa00097..92d6520 100644
--- a/builtins/export.c
+++ b/builtins/export.c
@@ -6,13 +6,13 @@
 /*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/02/14 14:27:08 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/02/23 17:15:13 by erey-bet         ###   ########.fr       */
+/*   Updated: 2023/02/24 12:32:22 by erey-bet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "../minishell.h"
 
-int	error(char *str, int fd)
+static int	error(char *str, int fd)
 {
 	write(fd, "bash: export: `", 15);
 	write(fd, str, ft_strlen(str));
diff --git a/minishell.h b/minishell.h
index dce9248..47f1bbe 100644
--- a/minishell.h
+++ b/minishell.h
@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/02/14 13:45:30 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/02/23 16:46:51 by erey-bet         ###   ########.fr       */
+/*   Updated: 2023/02/24 12:31:02 by erey-bet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -74,14 +74,16 @@ int			echo(int fd, char **strs);
 /* PWD */
 int			pwd(int fd);
 char		*get_pwd(int fd);
-/* ENV */
+/* Env */
 int			print_env(t_list **env, int fd);
-/* EXPORT */
+/* Export */
 int			export(t_list **env, char **args, int fd);
 /* CD */
 int			move_folder(char *path, int fd);
-/* UNSET */
+/* Unset */
 int			unset(t_list **env, char **args, int fd);
+/* Exit */
+int			ft_exit(char **args, int fd);
 
 typedef struct s_cmd
 {
diff --git a/utils/ft_atoi_check.c b/utils/ft_atoi_check.c
new file mode 100644
index 0000000..ba7d097
--- /dev/null
+++ b/utils/ft_atoi_check.c
@@ -0,0 +1,50 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_atoi_check.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/07/21 08:21:05 by erey-bet          #+#    #+#             */
+/*   Updated: 2022/12/08 16:37:19 by erey-bet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "utils.h"
+
+static int	ft_isspace(char c)
+{
+	if (c == ' ' || c == '\f'
+		||c == '\n' || c == '\r' || c == '\t' || c == '\v')
+		return (1);
+	return (0);
+}
+
+int	ft_atoi_check(const char *nptr)
+{
+	long	result;
+	int		sign;
+
+	while (ft_isspace(*nptr))
+		nptr++;
+	sign = 1;
+	if (*nptr == '+' || *nptr == '-')
+	{
+		if (*nptr == '-')
+			sign = -1;
+		nptr++;
+	}
+	result = 0;
+	while (*nptr >= '0' && *nptr <= '9')
+	{
+		result = result * 10 + *nptr++ - '0';
+		if ((result > 2147483647 && sign == 1)
+			|| (result > 2147483648 && sign == -1))
+			return (0);
+	}
+	if (*nptr--)
+		return (0);
+	if (*nptr == '-' || *nptr == '+')
+		return (0);
+	return (1);
+}
diff --git a/utils/utils.h b/utils/utils.h
index 6481706..2a12d81 100644
--- a/utils/utils.h
+++ b/utils/utils.h
@@ -25,5 +25,6 @@ int			ft_str_is_empty(const char *str);
 char		**ft_split_quoted(const char *s, char c);
 void		ft_strshift(char *str, int shift);
 char		*ft_quote_remover(char *str);
+int			ft_atoi_check(const char *nptr);
 
 #endif