builtins

srcs/builtins/cd.c

@@ -1,6 +1,65 @@
 #include "../../includes/builtins.h"
 
-void	builtin_cd(char *str)
+char	**update_oldpwd(char **envp)
 {
-	(void)str;	
+	char	**new_envp;
+	int		i;
+
+	i = 0;
+	while (envp[i])
+		i++;
+	new_envp = malloc(sizeof(char *) * i + 1);
+	if (!new_envp)
+		return (perror("malloc"), NULL);
+	new_envp[i] = NULL;
+	i = -1;
+	while (envp[++i])
+	{
+		if (ft_strnstr(envp[i], "OLDPWD=", 7) == NULL)
+			new_envp[i] = ft_strdup(envp[i]);
+		else
+			new_envp[i] = ft_strjoin("OLDPWD=", getcwd(NULL, 0));
+	}
+	return (new_envp);
+}
+
+char	**update_pwd(char **envp)
+{
+	char	**new_envp;
+	int		i;
+
+	i = 0;
+	while (envp[i])
+		i++;
+	new_envp = malloc(sizeof(char *) * i + 1);
+	if (!new_envp)
+		return (perror("malloc"), NULL);
+	new_envp[i] = NULL;
+	i = -1;
+	while (envp[++i])
+	{
+		if (ft_strnstr(envp[i], "PWD=", 4) == NULL)
+			new_envp[i] = ft_strdup(envp[i]);
+		else
+			new_envp[i] = ft_strjoin("PWD=", getcwd(NULL, 0));
+	}
+	return (new_envp);
+}
+
+char	**builtin_cd(char **arg, char **envp)
+{
+	/*
+	 * OLDPWD = getcwd()
+	 */
+	envp = update_oldpwd(envp);
+	if (chdir(arg[1]) == -1)
+	{
+		perror("cd");
+		return (envp);
+	}
+	envp = update_pwd(envp);
+	/*
+	 * PWD = getcwd()
+	 */
+	return (envp);
 }

srcs/builtins/env.c

@@ -8,7 +8,7 @@ void	builtin_env(char *str, char **envp)
 	(void)str;
 	while (envp[i])
 	{
-		if (envp[i][0])
+		if (envp[i][0] && ft_strchr(envp[i], '=') != NULL)
 			printf("%s\n", envp[i]);
 		i++;
 	}

srcs/builtins/exit.c

@@ -23,7 +23,7 @@ void	bash_exit(int code)
 	exit(code);
 }
 
-void	bash_exit_error(char *arg)
+void	bash_exit_errornum(char *arg)
 {
 	ft_putendl_fd("exit", 2);
 	ft_put_s_fd("minishell: exit: ", 2);
@@ -44,6 +44,39 @@ static	char	*get_arg(char *str)
 	return (&str[i]);
 }
 
+int	is_sep(char c)
+{
+	if ((c >= 9 && c <= 13) || c == ' ' || c == '\0')
+		return (1);
+	else
+		return (0);
+}
+
+int	count_arg(char *str)
+{
+	int	count;
+	int	i;
+
+	count = 0;
+	i = 0;
+	while (str[i] && str[i + 1])
+	{
+		if (!is_sep(str[i]) && is_sep(str[i + 1]))
+			count++;
+		i++;
+	}
+	return (count);
+}
+
+void	bash_exiterrorcount(void)
+{
+	ft_putendl_fd("exit", 2);
+	ft_putendl_fd("minishell: exit: too many arguments", 2);
+	/*
+	 * SET EXIT CODE WITHOUT EXITING MINISHELL
+	 */
+}
+
 void	builtin_exit(char *str, bool depth)
 {
 	char 	*arg;
@@ -51,6 +84,11 @@ void	builtin_exit(char *str, bool depth)
 	arg = get_arg(str);
 	if (depth == true)
 	{
+		if (count_arg(str) >= 2)
+		{
+			ft_putendl_fd("minishell: exit: too many arguments", 2);
+			exit (1);
+		}
 		if (!ft_isnumeric(arg))
 		{
 			ft_put_s_fd("minishell: exit: ", 2);
@@ -60,8 +98,10 @@ void	builtin_exit(char *str, bool depth)
 		}
 		exit(ft_atoi(arg));
 	}
-	if (ft_isnumeric(arg))
+	if (count_arg(str) >= 2)
+		bash_exiterrorcount();
+	else if (ft_isnumeric(arg))
 		bash_exit(ft_atoi(arg));
 	else
-		bash_exit_error(arg);
+		bash_exit_errornum(arg);
 }

srcs/builtins/export.c

@@ -1 +1,89 @@
 #include "../../includes/builtins.h"
+
+void	check_format(char **arg)
+{
+	(void)arg;
+}
+
+void	print_error(char *str, int *code)
+{
+	ft_put_s_fd("minishell: export: ", 2);
+	ft_put_s_fd(str, 2);
+	ft_putendl_fd(": not a valid identifier", 2);
+	*code = 1;
+}
+
+void	print_arr(char **envp)
+{
+	int		i;
+	char	*equal;
+
+	(void)equal;
+	i = -1;
+	while (envp[++i])
+	{
+			ft_printf("declare -x %s\n", envp[i]);
+	}
+}
+
+void	print_export(char **envp)
+{
+	int		i;
+	int		j;
+	char	*tmp;
+	int		len;
+
+	i = 0;
+	len = 0;
+	while (envp[len])
+		len++;
+	while (i < len - 1)
+	{
+		j = 0;
+		while (j < len - i - 1)
+		{
+			if (ft_strncmp(envp[j], envp[j + 1], ft_strlen(envp[j])) > 0)
+			{
+				tmp = envp[j];
+				envp[j] = envp[j + 1];
+				envp[j + 1] = tmp;
+			}
+			j++;
+		}
+		i++;
+	}
+	print_arr(envp);
+}
+
+char	**builtin_export(char **arg, char **envp)
+{
+	char	**new_envp;
+	int		i;
+	// int		code;
+
+	i =0;
+	while (envp[i])
+		i++;
+	new_envp = malloc(sizeof(char *) * i + 1);
+	new_envp[i] = NULL;
+	i = -1;
+	while (envp[++i])
+		new_envp[i] = ft_strdup(envp[i]);
+	// code = 0;
+	i = 0;
+	while (arg[i])
+		i++;
+	if (i == 1)
+		return(print_export(new_envp), envp);
+	return (envp);
+	// i = -1;
+	// while (arg[++i])
+	// {
+	// 	if (check_format(arg[i]))
+	// 	{
+	//
+	// 	}
+	// 	else
+	// 		print_error(arg[i], &code);
+	// }
+}