minishell/ft_cd.c at main · mbani01/minishell · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_cd.c                                            :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mamoussa <mamoussa@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/11/10 12:43:12 by mamoussa          #+#    #+#             */
/*   Updated: 2020/12/11 13:57:07 by mamoussa         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "shell.h"

void	path_checker(void)
{
	t_env	*current;

	current = g_env_head;
	while (current)
	{
		if (!ft_strncmp(current->key, "HOME", ft_strlen("HOME")))
		{
			g_tmp = g_cmd_head->string;
			g_cmd_head->string = ft_strjoin(current->value,
			g_cmd_head->string);
			simple_pointer_free(g_tmp);
			break ;
		}
		current = current->next;
	}
}

void	check_for_tilde(void)
{
	char	*str;
	char	*strtmp;

	strtmp = ft_strdup(g_cmd_head->string);
	str = (char*)malloc(ft_strlen(strtmp));
	str_cpy(&str, &strtmp);
	g_tmp = g_cmd_head->string;
	g_cmd_head->string = ft_strdup(str);
	simple_pointer_free(g_tmp);
	path_checker();
	simple_pointer_free(str);
	simple_pointer_free(strtmp);
}

char	*check_for_home(void)
{
	t_env	*current;

	current = g_env_head;
	while (current)
	{
		if (!ft_strncmp(current->key, "HOME", ft_strlen("HOME")))
		{
			return (current->value);
			break ;
		}
		current = current->next;
	}
	return (NULL);
}

void	ft_cd(void)
{
	int	ret;

	if (ft_cd_helper())
		return ;
	if (!ft_strncmp(g_cmd_head->string, "~", ft_strlen("~")))
		check_for_tilde();
	ret = chdir(g_cmd_head->string);
	if (ret < 0)
	{
		ft_error(strerror(errno));
		write(1, ":", 1);
		write(1, g_cmd_head->string, ft_strlen(g_cmd_head->string));
		write(1, "\n", 1);
		g_status = 1;
	}
}