100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* ms_env.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2019/01/13 14:44:20 by tmaze #+# #+# */
|
|
/* Updated: 2019/01/13 19:02:04 by tmaze ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "minishell.h"
|
|
|
|
t_envelem *elem_new(char *key, char *val)
|
|
{
|
|
t_envelem *elem;
|
|
|
|
if ((elem = (t_envelem*)ft_memalloc(sizeof(t_envelem))) == NULL)
|
|
return (NULL);
|
|
if ((elem->key = ft_strdup(key)) == NULL)
|
|
{
|
|
ft_memdel((void**)&elem);
|
|
return (NULL);
|
|
}
|
|
if (val != NULL && (elem->val = ft_strdup(val)) == NULL)
|
|
{
|
|
ft_strdel(&(elem->key));
|
|
ft_memdel((void**)&elem);
|
|
return (NULL);
|
|
}
|
|
elem->val = (val == NULL) ? NULL : elem->val;
|
|
return (elem);
|
|
}
|
|
|
|
t_envelem *env_getelemfromkey(char *key, t_list *env)
|
|
{
|
|
t_list *tmp;
|
|
|
|
tmp = env;
|
|
while (tmp)
|
|
{
|
|
if (ft_strcmp(((t_envelem*)(tmp->content))->key, key) == 0)
|
|
return ((t_envelem*)(tmp->content));
|
|
tmp = tmp->next;
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
t_envelem *env_addupdate(char *key, char *val, t_list **env)
|
|
{
|
|
t_list *new;
|
|
t_envelem *elem;
|
|
char *tmp;
|
|
|
|
if ((elem = env_getelemfromkey(key, *env)) != NULL)
|
|
{
|
|
if (val == NULL)
|
|
tmp = val;
|
|
else if ((tmp = ft_strdup(val)) == NULL)
|
|
return (NULL);
|
|
ft_strdel(&(elem->val));
|
|
elem->val = tmp;
|
|
return (elem);
|
|
}
|
|
if ((elem = elem_new(key, val)) == NULL
|
|
|| (new = ft_lstnew(elem, sizeof(t_envelem))) == NULL)
|
|
return (NULL);
|
|
ft_lstaddend(env, new);
|
|
ft_memdel((void**)&elem);
|
|
return ((t_envelem*)(new->content));
|
|
}
|
|
|
|
void env_delelem(char *key, t_list **env)
|
|
{
|
|
t_list *tmp;
|
|
t_list *prec;
|
|
|
|
if (ft_strcmp(((t_envelem*)((*env)->content))->key, key) == 0)
|
|
{
|
|
tmp = *env;
|
|
*env = (*env)->next;
|
|
ft_lstdelone(&tmp, &ft_lstdelenvelem);
|
|
return ;
|
|
}
|
|
tmp = (*env)->next;
|
|
prec = (*env);
|
|
while (tmp)
|
|
{
|
|
if (ft_strcmp(((t_envelem*)(tmp->content))->key, key) == 0)
|
|
{
|
|
prec->next = tmp->next;
|
|
ft_lstdelone(&tmp, &ft_lstdelenvelem);
|
|
return ;
|
|
}
|
|
prec = tmp;
|
|
tmp = tmp->next;
|
|
}
|
|
}
|