minishell/main.c at master · MKcodes2/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
95
96
97
98
99
100
101
102
103
104
105
106
107
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   main.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mevangel <mevangel@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/01/17 11:00:27 by frapp             #+#    #+#             */
/*   Updated: 2024/03/27 22:55:21 by mevangel         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "headers/minishell.h"

void	add_global_data(t_ast *ast, t_shared_data *shared_data)
{
	if (!ast)
		return ;
	add_global_data(ast->left, shared_data);
	add_global_data(ast->right, shared_data);
	ast->fd_to_close = INIT_VAL;
	ast->fd_to_close_read = INIT_VAL;
	ast->fd_to_close_write = INIT_VAL;
	ast->shared_data = shared_data;
	ast->exit_status = DEFAULT_EXIT_STATUS;
}

static bool	init_shared_data(t_shared_data *shared_data,
	char **base_env, char ***env_list, char ***exp_list)
{
	if (!shared_data)
		return (false);
	shared_data->stop_execution = false;
	*env_list = ft_initialize_env(base_env);
	if (*env_list == NULL)
		return (get_last_exit());
	*exp_list = ft_initialize_env(base_env);
	if (*exp_list == NULL)
		return (ft_free_2darr(*env_list), get_last_exit());
	get_env_list(env_list);
	shared_data->envs = env_list;
	shared_data->env_exp = exp_list;
	return (true);
}

t_result	init_main(int ac, t_shared_data *shared_data)
{
	errno = 0;
	set_signals();
	set_last_exit(0);
	shared_data->env_exp = NULL;
	shared_data->envs = NULL;
	shared_data->main_pid = get_pid();
	if (ac > 2)
	{
		print_error(true, NULL, NULL, "max one arg allowed");
		exit(1);
	}
	if (!shared_data->main_pid)
		return (1);
	return (SUCCESS);
}

void	main_loop(t_cleanup_data *cleanup_data, t_shared_data *shared_data)
{
	t_ast	*ast;

	ast = get_input(cleanup_data);
	if (TESTER && !cleanup_data->input)
		main_exit(cleanup_data, true, false);
	if (!ast)
		main_exit(cleanup_data, full_exit_status(false) == true, false);
	while (1)
	{
		if (ast)
		{
			add_global_data(ast, shared_data);
			ast->shared_data->cleanup_data = cleanup_data;
			run_node(ast);
			main_exit(cleanup_data, full_exit_status(false) == true, false);
		}
		ast = get_input(cleanup_data);
		if (!ast)
			main_exit(cleanup_data, full_exit_status(false) == true, false);
	}
}

int	main(int ac, char **av, char **base_env)
{
	t_cleanup_data	cleanup_data;
	t_shared_data	shared_data;
	char			**env_list;
	char			**exp_list;

	if (isatty(0) && tcgetattr(0, &shared_data.base_term_settings) == -1)
		return (errno);
	get_base_term(true, &shared_data.base_term_settings);
	cleanup_data.shared_data = &shared_data;
	if (init_main(ac, &shared_data) == ERROR)
		return (1);
	if (!init_shared_data(&shared_data, base_env, &env_list, &exp_list))
		return (ERROR);
	(void)av;
	shared_data.cleanup_data = &cleanup_data;
	main_loop(&cleanup_data, &shared_data);
	return (1);
}