42_minishell/builtins/unset.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   unset.c                                            :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/02/22 13:28:27 by erey-bet          #+#    #+#             */
/*   Updated: 2023/02/23 15:49:21 by erey-bet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "./builtins_private.h"

int	error(char *str, int fd)
{
	write(fd, "bash: unset: `", 14);
	write(fd, str, ft_strlen(str));
	write(fd, "': not a valid identifier", 25);
	return (1);
}

int	unset(t_list **env, char **args, int fd)
{
	int	i;
	int	err;

	i = -1;
	err = 0;
	while (args[++i])
		if (delete_by_key(args[i], env))
			if (!possible_key(args[i]))
				err = error(args[i], fd);
	return (err);
}