Minishell/here_doc.c at main · badi361/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
85
86
87
88
89
90
91
92
93
94
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   here_doc.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: yturgut <yturgut@student.42istanbul.com    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/09/09 15:45:13 by bguzel            #+#    #+#             */
/*   Updated: 2023/09/10 15:27:41 by yturgut          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minishell.h"

void	ft_here_doc(char *data, int k)
{
	char	*str;
	int		fd;

	str = NULL;
	unlink_to_hd();
	g_var.hd_flag = 0;
	fd = open(".temporary", O_RDWR | O_CREAT, 0777);
	g_var.cmds[k]->f_in = fd;
	here_doc_helper(fd, data, str);
	if (g_var.hd_flag == 2)
		g_var.exit = 0;
	close(fd);
	fd = open(".temporary", O_RDONLY, 0777);
	g_var.cmds[k]->f_in = fd;
	g_var.hd_flag = 1;
}

void	write_on_fd(char *str, int fd)
{
	write(fd, str, ft_strlen(str));
	write(fd, "\n", 1);
}

void	unlink_to_hd(void)
{
	char	*temporary;
	char	str[128];

	if (g_var.hd_flag == 1)
	{
		getcwd(str, sizeof(str));
		temporary = ft_strjoin(str, "/.temporary");
		unlink(temporary);
		free(temporary);
	}
}

int	ft_strcmp(char *s1, char *s2)
{
	int	i;

	i = 0;
	while ((s1[i] != '\0' || s2[i] != '\0'))
	{
		if (s1[i] != s2[i])
			return (((unsigned char *)s1)[i] - ((unsigned char *)s2)[i]);
		i++;
	}
	return (0);
}

void	here_doc_helper(int fd, char *data, char *str)
{
	while (1)
	{
		str = readline("> ");
		if (!str)
		{
			write(1, "\033[2D", 5);
			break ;
		}
		if (g_var.hd_flag == 2)
		{
			g_var.hd_flag = 1;
			unlink_to_hd();
			g_var.hd_flag = 2;
			break ;
		}
		if (!ft_strncmp(str, "> ", ft_strlen(str)))
			write(fd, "\n", 1);
		else if (!ft_strcmp(data, str))
			break ;
		else
			write_on_fd(str, fd);
		free(str);
	}
	free(str);
}