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"
 
/*
Functionality:
- Exit the shell
- Free the environment
- Exit with the exit status
 */
 
void    clear_history_file(void)
{
    remove(HISTORY_PATH);
}
 
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);
    exit(NUMERIC_REQUIRED);
}
 
void    handle_too_many_args_error(t_ms_data *data)
{
    exit_status_handler(data, TOO_MANY_ARGS, "exit");
    exit(TOO_MANY_ARGS);
}
 
void    handle_exit(t_ms_data *data, int status)
{
    char    *exit_status_str;
 
    ft_putendl_fd("exit", STDOUT_FILENO);
    data->exit_status = status;
    exit_status_str = ft_itoa(data->exit_status);
    set_shell_var(&data->shell_variables, "?", exit_status_str);
    free(exit_status_str);
    clear_history_file();
    free_ms_data(data);
    exit(status);
}
 
int builtin_exit(t_ms_data *data)
{
    int number;
 
    number = 0;
    if (data->args[1])
    {
        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]);
            handle_exit(data, number);
        }
    }
    else
        handle_exit(data, 0);
    return (0);
}