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builtin export fixed and refactored

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+ builtin exit, env verif OK
This commit is contained in:
LuckyLaszlo
2021-12-06 03:56:05 +01:00
parent 2d85c34b98
commit 200e043a8c
4 changed files with 41 additions and 34 deletions
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69
srcs/builtins/export.c
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@@ -6,20 +6,20 @@
/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/12/03 13:36:54 by lperrey #+# #+# */
/* Updated: 2021/12/05 18:14:31 by lperrey ### ########.fr */
/* Updated: 2021/12/06 03:19:30 by lperrey ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
char *ft_getenv(char *env_var);
size_t ft_getenv_position(char *env_var);
static int export_var(char *arg);
static int change_var_value(char *arg, char *var_name);
static int change_env_value(char *arg);
#define ERR_ID 1
#define ERR_ID_STR ": not a valid identifier"
#define CMD "builtin_export"
// in complete shell, must mark arguments for export
// (Not implemented in minishell)
int builtin_export(int argc, char *argv[], t_all *c) // 2 lignes de trop... NORME / 20
int builtin_export(int argc, char *argv[], t_all *c)
{
int i;
int exit_value;
@@ -30,51 +30,58 @@ int builtin_export(int argc, char *argv[], t_all *c) // 2 lignes de trop... NORM
i = 1;
while (argv[i])
{
if (ft_strchr(argv[i], '='))
{
ret = change_env_value(argv[i]);
if (ret == -1)
return (EXIT_FAILURE);
else if (ret == EXIT_FAILURE)
exit_value = EXIT_FAILURE;
if (ft_strncmp(argv[i], "PATH=", 5) == 0)
c->path = retrieve_path();
}
else if (!ft_is_posix_name(argv[i]))
{
shell_error("export: ", argv[i], ": not a valid identifier", 0);
ret = export_var(argv[i]);
if (ret == -1)
return (EXIT_FAILURE);
else if (ret == ERR_ID)
exit_value = EXIT_FAILURE;
}
if (ft_strncmp(argv[i], "PATH=", 5) == 0)
c->path = retrieve_path();
i++;
}
return (exit_value);
}
static int change_env_value(char *arg)
// in complete shell, must mark arguments for export
// (Not implemented in minishell)
static int export_var(char *arg)
{
char **var_split;
int env_position;
int ret;
ret = 0;
var_split = ft_split(arg, '=');
if (!var_split)
return (ft_reti_perror(-1, "builtin_export, ft_split()"));
return (ft_reti_perror(-1, CMD", ft_split()"));
if (!ft_is_posix_name(var_split[0]))
{
shell_error("export: ", var_split[0], ": not a valid identifier", 0);
shell_error("export: ", var_split[0], ERR_ID_STR, 0);
ft_free_2d_arr(var_split);
return (EXIT_FAILURE);
return (ERR_ID);
}
env_position = ft_getenv_position(var_split[0]);
if (ft_strchr(arg, '='))
ret = change_var_value(arg, var_split[0]);
ft_free_2d_arr(var_split);
return (ret);
}
static int change_var_value(char *arg, char *var_name)
{
int env_position;
char *tmp;
env_position = ft_getenv_position(var_name);
if (environ[env_position] == NULL)
{
environ = ft_resize_2d_arr(environ, 1);
if (!environ)
return (ft_reti_perror(-1, "builtin_export, ft_resize_2d_arr()"));
return (ft_reti_perror(-1, CMD", ft_resize_2d_arr()"));
}
environ[env_position] = ft_strdup(arg);
if (!environ[env_position])
return (ft_reti_perror(-1, "builtin_export, ft_strdup()"));
tmp = ft_strdup(arg);
if (!tmp)
return (ft_reti_perror(-1, CMD", ft_strdup()"));
free(environ[env_position]);
environ[env_position] = tmp;
return (EXIT_SUCCESS);
}