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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* env.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/28 09:21:24 by cacharle #+# #+# */
/* Updated: 2020/04/01 17:03:50 by charles ### ########.fr */
/* */
/* ************************************************************************** */
/*
** \file env.c
** \brief Environment hash table manipulation
*/
#include "minishell.h"
/*
** \brief Number of buckets of an environment hash table
*/
#define MS_ENV_HT_SIZE 2048
/*
** \brief Convert array of string to environment hash table
** \param envp array of string (each in the format `name=value`)
** \return Environment hash table or NULL on error
*/
t_env env_from_array(char **envp)
{
t_env env;
int i;
char *key;
char *value;
if (envp == NULL)
return (NULL);
if ((env = ft_htnew(MS_ENV_HT_SIZE)) == NULL)
return (NULL);
i = -1;
while (envp[++i] != NULL)
{
// free stuff on error
if ((value = ft_strchr(envp[i], '=')) == NULL)
return (NULL);
if ((key = ft_strndup(envp[i], ft_strcspn(envp[i], "="))) == NULL)
return (NULL);
if ((value = ft_strdup(value + 1)) == NULL)
return (NULL);
if (ft_htset(env, key, value, ht_del_str_entry) == NULL)
return (NULL);
free(key);
}
return (env);
}
/*
** \brief Convert environment to array of string
** \param env Environment hash table
** \return Array of string on NULL on error
*/
char **env_to_array(t_env env)
{
(void)env;
return (NULL);
}
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