exit.c

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   exit.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: dmdemirk <dmdemirk@student.42london.c      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/06/03 16:32:42 by dmdemirk          #+#    #+#             */
/*   Updated: 2024/09/09 13:10:47 by dmdemirk         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "shell.h"
#include "libft.h"
#include <stdlib.h>
#include <stdio.h>
#include "env.h"
#include "exit_status.h"
#include "tokens.h"
#include "signals.h"
#include "builtins.h"
 
/*
Functionality:
- Exit the shell
- Free the environment
- Exit with the exit status
 */
 
void    cleanup_exit_resources(t_ms_data *data)
{
    clear_history_file();
    free_ms_data(data);
    free_signal_context();
}
 
void    handle_numeric_error(t_ms_data *data, const char *arg)
{
    char    *temp_str;
 
    temp_str = ft_strjoin("exit: ", arg);
    exit_status_handler(data, NUMERIC_REQUIRED, temp_str);
    free(temp_str);
    handle_exit(data, 0);
}
 
void    handle_too_many_args_error(t_ms_data *data)
{
    exit_status_handler(data, TOO_MANY_ARGS, "exit");
    handle_exit(data, TOO_MANY_ARGS);
}
 
void    handle_exit(t_ms_data *data, int status)
{
    if (status != 0 && status != TOO_MANY_ARGS)
        ft_putendl_fd("exit", STDOUT_FILENO);
    cleanup_exit_resources(data);
    exit(status);
}
 
int builtin_exit(t_ms_data *data)
{
    int number;
 
    number = 0;
    if (!data->args || !data->args[1])
    {
        ft_free_2d_arr(data->args);
        data->args = NULL;
        ft_putendl_fd("exit", STDOUT_FILENO);
        handle_exit(data, 0);
        return (0);
    }
    if (ft_isnumber(data->args[1]) == 0)
        handle_numeric_error(data, data->args[1]);
    else if (data->args[2])
        handle_too_many_args_error(data);
    else
    {
        number = ft_atoi(data->args[1]);
        ft_free_2d_arr(data->args);
        data->args = NULL;
        handle_exit(data, number);
    }
    return (EXIT_SUCCESS);
}