Seluj78/Minishell

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   path_parser.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jlasne <marvin@42.fr>                      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2017/02/04 12:57:41 by jlasne            #+#    #+#             */
/*   Updated: 2017/03/09 14:08:21 by jlasne           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "../includes/minishell.h"

static char    *path_dup(char *str, int i, int j)
{
    char    *dup;
    int        k;

    k = 0;
    dup = malloc((j - i + 1) * sizeof(*dup));
    if (dup == NULL)
        ft_printf("Error character\n");
    while (str[i] != '\0')
    {
        dup[k] = str[i];
        ++i;
        ++k;
    }
    dup[k] = '\0';
    return (dup);
}

static char    *get_env(char **env, char *data)
{
    int        i;
    char    *path;

    i = 0;
    while (env[i] != NULL)
    {
        if (str_is_in(env[i], data) != 0)
        {
            path = path_dup(env[i], ft_strlen(data), ft_strlen(env[i]));
            return (path);
        }
        ++i;
    }
    return (NULL);
}

int            count_path_size(char *path, char sep)
{
    int i;
    int count;

    count = 0;
    i = 0;
    while (path[i] != '\0')
    {
        if (path[i] == sep)
            count++;
        i++;
    }
    return (count + 1);
}

char        **path_parser(char **env, t_data *data)
{
    char    **tab;
    char    *path;

    path = NULL;
    tab = NULL;
    if (env[0] == NULL)
        tab = do_absolute();
    else
    {
        path = get_env(env, "PATH=");
        if (path == NULL)
            tab = do_absolute();
        else
            tab = ft_str_to_tab_sep(path, ':', 0);
    }
    data->nb_bin = count_path_size(path, ':');
    free(path);
    return (tab);
}