70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_realpath.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/01/27 14:42:35 by tmaze #+# #+# */
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/* Updated: 2019/01/28 15:32:44 by tmaze ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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char *ft_tabtopath(char **tab_path)
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{
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size_t total_size;
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size_t i;
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char *ret;
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i = 0;
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total_size = 0;
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while (tab_path[i])
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total_size += ft_strlen(tab_path[i++]);
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if ((ret = ft_strnew(total_size + i)) == NULL)
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return (NULL);
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i = 0;
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while (tab_path[i])
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{
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ft_strcat(ret, "/");
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ft_strcat(ret, tab_path[i++]);
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}
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return (ret);
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}
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char *ft_realpath(char *r_path, char **a_path)
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{
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char **tab_path;
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size_t i;
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size_t j;
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int strcmp;
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i = 0;
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if ((tab_path = ft_strsplit(r_path, '/')) == NULL)
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return (NULL);
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while (tab_path[i])
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{
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if ((strcmp = ft_strcmp(tab_path[i], "..")) == 0
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|| ft_strcmp(tab_path[i], ".") == 0)
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{
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j = i;
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if (strcmp == 0 && i != 0)
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i = i - 1;
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ft_strdel(&(tab_path[i]));
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if (strcmp == 0 && i != 0)
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ft_strdel(&(tab_path[j]));
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while (tab_path[++j])
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tab_path[j - ((strcmp == 0 && i != 0) ? 2 : 1)] = tab_path[j];
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if (strcmp == 0 && i != 0)
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tab_path[j - 2] = NULL;
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tab_path[j - 1] = NULL;
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}
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else
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i++;
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}
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*a_path = ft_tabtopath(tab_path);
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ft_del_words_tables(&tab_path);
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return (*a_path);
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}
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