ms_cd.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ms_cd.c                                            :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: siychoi <siychoi@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/05/06 15:35:28 by siychoi           #+#    #+#             */
/*   Updated: 2024/07/01 15:26:29 by siychoi          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minishell.h"

static int	print_cd_error(char *str, int error_type);
static int	ms_cd_no_options(t_envp **my_envp, char *old_pwd);
void		ms_cd2(t_envp **my_envp, char *argv[], char *pwd, int *status);

int	ms_cd(t_envp **my_envp, char **argv)
{
	int		status;
	char	*pwd;

	status = 0;
	pwd = getcwd(NULL, 0);
	if (argv[1] == NULL || (argv[1][0] == '~' && argv[1][1] == '\0'))
	{
		free_2d_array(argv);
		return (ms_cd_no_options(my_envp, pwd));
	}
	if (argv[1][0] == '-' && argv[1][1] != '\0')
	{
		free(pwd);
		free_2d_array(argv);
		return (print_cd_error(NULL, 1));
	}
	ms_cd2(my_envp, argv, pwd, &status);
	free_2d_array(argv);
	return (status);
}

void	ms_cd2(t_envp **my_envp, char *argv[], char *pwd, int *status)
{
	if (chdir(argv[1]) == -1)
	{
		print_code_error_builtin(errno, argv[0]);
		*status = 1;
		free(pwd);
	}
	else
	{
		change_value(my_envp, "OLDPWD", pwd);
		change_value(my_envp, "PWD", getcwd(NULL, 0));
	}
}

static int	ms_cd_no_options(t_envp **my_envp, char *old_pwd)
{
	char	*home_path;

	home_path = find_value(my_envp, "HOME");
	if (chdir(home_path) == -1)
	{
		ft_putstr_fd("minishell : cd: HOME not set\n", 2);
		free(old_pwd);
		free(home_path);
		return (1);
	}
	else
	{
		change_value(my_envp, "OLDPWD", old_pwd);
		change_value(my_envp, "PWD", getcwd(NULL, 0));
	}
	free(home_path);
	return (0);
}

static int	print_cd_error(char *str, int error_type)
{
	if (error_type == 1)
	{
		ft_putstr_fd("minishell: cd: can't have options\n", 2);
	}
	else if (error_type == 2)
	{
		ft_putstr_fd("minishell: cd: ", 2);
		ft_putstr_fd(str, 2);
		ft_putstr_fd(": No such file or directory\n", 2);
	}
	return (1);
}