minishell/srcs/cmd_env.c
Tanguy Maze d22bc173f1 feature: added env, setenv & unsetenv builtins
added -i option & command execution to env
added setenv & unsetenv builtins
2019-10-10 16:56:40 +02:00

75 lines
1.9 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* cmd_env.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/09/20 14:33:48 by tmaze #+# #+# */
/* Updated: 2019/10/10 13:49:33 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
static void put_env(t_env *env)
{
t_env *it;
it = env;
while (it)
{
ft_printf("%s=", it->key);
if (it->val)
ft_printf("%s", it->val);
ft_putchar('\n');
it = it->next;
}
}
t_env *envcpy(t_env *env)
{
t_env *cpy;
cpy = NULL;
if (env != NULL && (cpy = (t_env*)ft_memalloc(sizeof(t_env))) != NULL)
if ((cpy->key = ft_strdup(env->key)) == NULL
|| (cpy->val = ft_strdup(env->val)) == NULL)
lstdelelem(&cpy);
return (cpy);
}
int cmd_env(char** argv, t_env** env)
{
int i;
t_env *it;
t_env *new;
t_env *env_cp;
i = 1;
env_cp = NULL;
if (!ft_strequ(argv[i] , "-i") && (env != NULL))
{
it = *env;
while (it)
{
if ((new = envcpy(it)) == NULL)
{
lstdel(&env_cp);
ft_putstr_fd("minishell: env: Env copy error\n", 2);
return (2);
}
lstaddend(&env_cp, new);
it = it->next;
}
}
if (ft_strequ(argv[i] , "-i"))
i++;
if (argv[i])
exec_cmd(argv + i, &env_cp);
else
put_env(env_cp);
lstdel(&env_cp);
return (0);
}