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unset.c
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unset.c
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#include "minishell.h"
void unset_export(t_source *src, char *arg)
{
int i;
char *tmp;
i = 0;
while (src->export[i] != NULL)
{
if (is_equal(src->export[i], arg))
{
tmp = src->export[i];
while ((src->export[i] != NULL))
{
src->export[i] = src->export[i + 1];
i++;
}
src->lastexp--;
free(tmp);
src->export[i] = NULL;
break ;
}
i++;
}
}
void unset_env(t_source *src, char *arg)
{
int i;
char *tmp;
i = 0;
while (src->our_envp[i] != NULL)
{
if (is_equal(src->our_envp[i], arg))
{
tmp = src->our_envp[i];
while ((src->our_envp[i] != NULL))
{
src->our_envp[i] = src->our_envp[i + 1];
i++;
}
src->lastenv--;
free (tmp);
src->our_envp[i] = NULL;
break ;
}
i++;
}
}
int ft_unset(char **args, t_source *src)
{
int env;
int exp;
int j;
int n;
j = 0;
while (args[j])
{
n = check_exsyn(args[j]);
if (n)
{
write (2, "Minishell : not a valid identifier\n", 35);
g_global.return_value = 1;
j++;
continue ;
}
env = ft_search(src->our_envp, args[j]);
exp = ft_search(src->export, args[j]);
if (exp)
unset_export(src, args[j]);
if (env)
unset_env(src, args[j]);
j++;
}
return (0);
}