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Resolved infinite loop in extension revolving

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WIP norming in cd
This commit is contained in:
Tanguy Maze 2020-01-24 00:33:56 +01:00
parent 4f7e1a56ef
commit 40718a99ac
3 changed files with 22 additions and 30 deletions
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25
srcs/cmd_cd.c
View File

@ -6,18 +6,19 @@
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/01/07 16:44:40 by tmaze #+# #+# */
/* Updated: 2019/11/11 01:09:36 by tmaze ### ########.fr */
/* Updated: 2020/01/23 23:37:53 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
void put_error_cd(char *file, char *msg)
void *put_error_cd(char *file, char *msg)
{
ft_putstr("cd: ");
ft_putstr(file);
ft_putstr(": ");
ft_putendl(msg);
return (NULL);
}
char *check_path_slash_cd(char *exec)
@ -29,22 +30,14 @@ char *check_path_slash_cd(char *exec)
if (exec[0] == '/')
{
if ((i = access(exec, F_OK)) != 0)
put_error_cd(exec, "no such file or directory");
if (i != 0)
return (NULL);
return (put_error_cd(exec, "no such file or directory"));
if ((i = lstat(exec, &info)) != 0)
put_error_cd(exec, "can't determine info");
if (i != 0)
return (NULL);
if (!S_ISDIR(info.st_mode) || (S_ISLNK(info.st_mode) && ((i = stat(exec, &info2)) != 0 || !S_ISDIR(info2.st_mode))))
{
put_error_cd(exec, "not a directory");
return (NULL);
}
return (put_error_cd(exec, "can't determine info"));
if (!S_ISDIR(info.st_mode) || (S_ISLNK(info.st_mode)
&& ((i = stat(exec, &info2)) != 0 || !S_ISDIR(info2.st_mode))))
return (put_error_cd(exec, "not a directory"));
if ((i = access(exec, X_OK)) != 0)
put_error_cd(exec, "permission denied");
if (i != 0)
return (NULL);
return (put_error_cd(exec, "permission denied"));
return (exec);
}
return (NULL);

2
srcs/main.c
View File

@ -6,7 +6,7 @@
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/09/19 17:08:46 by tmaze #+# #+# */
/* Updated: 2019/11/10 21:24:36 by tmaze ### ########.fr */
/* Updated: 2020/01/24 00:24:19 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */

25
srcs/ms_ext.c
View File

@ -6,7 +6,7 @@
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/10/25 18:21:47 by tmaze #+# #+# */
/* Updated: 2020/01/23 00:23:24 by tmaze ### ########.fr */
/* Updated: 2020/01/24 00:23:59 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
@ -18,6 +18,14 @@ void *return_null(char *msg)
return (NULL);
}
void ft_strreplace(char **dst, char *src, int *index, t_env *elem)
{
if (*dst != NULL)
ft_strdel(dst);
*dst = src;
*index = ft_strlen(elem->val);
}
t_env *search_key(t_env *env, char *cmd, int index)
{
t_env *it;
@ -37,10 +45,7 @@ t_env *search_key(t_env *env, char *cmd, int index)
j++;
}
if (!it->key[i] && (!ret || ft_strlen(it->key) > ft_strlen(ret->key)))
{
ft_printf("found key: %s\n", it->key);
ret = it;
}
it = it->next;
}
return (ret);
@ -73,9 +78,7 @@ char *resolve_complete_key(char **src, int *index, t_env *env)
if ((ret = replace_env(*src, tmp, ft_strlen(tmp->key)
+ 1, *index)) != NULL)
{
ft_strdel(src);
*src = ret;
*index += ft_strlen(tmp->val);
ft_strreplace(src, ret, index, tmp);
return (*src);
}
else
@ -98,15 +101,11 @@ char **res_ext(char **av, t_env *env)
{
if (av[i[0]][i[1]] == '~' && (tmp = ft_envgetelem("HOME", env))
!= NULL && (ret = replace_env(av[i[0]], tmp, 1, i[1])) != NULL)
{
ft_strdel(&av[i[0]]);
av[i[0]] = ret;
i[1] += ft_strlen(tmp->val);
}
ft_strreplace(&av[i[0]], ret, &i[1], tmp);
else if (av[i[0]][i[1]] == '$'
&& resolve_complete_key(&av[i[0]], &i[1], env) == NULL)
return (NULL);
else if (av[i[0]][i[1]] != '$' && av[i[0]][i[1]] == '~')
else if (av[i[0]][i[1]] != '$' && av[i[0]][i[1]] != '~')
i[1]++;
}
i[0]++;