Minishell/srcs/built_in/unset.c

89 lines
2.2 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* unset.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/03/11 18:26:29 by sadjigui #+# #+# */
/* Updated: 2022/04/09 04:59:24 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "../../includes/minishell.h"
void unset_variable(t_s_cmd *cmd, int i)
{
int a;
int b;
char **tmp;
a = 0;
b = 0;
tmp = malloc(sizeof(char *) * tab_len(cmd->big_cmd->env));
if (!tmp)
printf("no tmp\n");
//ft_exit(cmd);
while (cmd->big_cmd->env[a])
{
// if (a == i)
// a++;
// printf("%s\n", cmd->big_cmd->env[a]);
if (a != i)
{
tmp[b] = ft_substr(cmd->big_cmd->env[a], 0, ft_strlen(cmd->big_cmd->env[a]));
b++;
}
a++;
}
tmp[b] = NULL;
free_double(cmd->big_cmd->env);
a = 0;
cmd->big_cmd->env = malloc(sizeof(char *) * (tab_len(tmp) + 1));
if (!cmd->big_cmd->env)
printf("no env\n");
//ft_exit(cmd);
while (tmp[a])
{
cmd->big_cmd->env[a] = ft_strdup(tmp[a]);
// printf("%s\n", cmd->big_cmd->env[a]);
a++;
}
cmd->big_cmd->env[a] = NULL;
if (tmp)
free_double(tmp);
}
void find_variable(char *variable, t_s_cmd *cmd)
{
// char *str;
int i;
int j;
i = find_it(cmd->big_cmd->env, variable);
// str = ft_strjoin(variable, "=");
j = 0;
// while (str[j])
// j++;
// while (cmd->big_cmd->env[i] && !(ft_strncmp(cmd->big_cmd->env[i], str, j) == 0))
// i++;
if (i == tab_len(cmd->big_cmd->env))
return ;
unset_variable(cmd, i);
// free(str);
}
void ft_unset(t_s_cmd *cmd)
{
int i;
i = 1;
while (cmd->args[i])
{
find_variable(cmd->args[i], cmd);
i++;
}
}