112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* export.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: marde-vr <marde-vr@42angouleme.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2024/02/18 18:29:20 by marde-vr #+# #+# */
|
|
/* Updated: 2024/03/24 08:49:17 by marde-vr ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "minishell.h"
|
|
|
|
void print_env_declare(t_env *env)
|
|
{
|
|
while (env)
|
|
{
|
|
if (strcmp(env->name, "_"))
|
|
printf("declare -x %s=\"%s\"\n", env->name, env->value);
|
|
env = env->next;
|
|
}
|
|
}
|
|
|
|
int check_var_name(char *name)
|
|
{
|
|
if (ft_isdigit(*name) || !*name)
|
|
return (0);
|
|
while (*name)
|
|
{
|
|
if (!ft_isalnum(*name) && *name != '_')
|
|
return (0);
|
|
name++;
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
int ft_export(t_msh *msh)
|
|
{
|
|
t_cmd *cmd;
|
|
char *arg;
|
|
char *name;
|
|
char *value;
|
|
int len;
|
|
|
|
cmd = msh->cmds;
|
|
if (cmd && (!cmd->next || (cmd->next && cmd->next->type != ARG)))
|
|
print_env_declare(msh->env);
|
|
if (cmd && cmd->next && cmd->next->type == ARG && (!cmd->next->next
|
|
|| (cmd->next->next && cmd->next->next->type != ARG)))
|
|
{
|
|
arg = cmd->next->token;
|
|
len = 0;
|
|
while (arg[len] && arg[len] != '=')
|
|
len++;
|
|
name = ft_substr(arg, 0, len);
|
|
if (!name || !check_var_name(name))
|
|
{
|
|
ft_putstr_fd("minishell: export: `", 2);
|
|
ft_putstr_fd(arg, 2);
|
|
ft_putstr_fd("': not a valid identifier\n", 2);
|
|
free(name);
|
|
return (1);
|
|
}
|
|
if (arg[len])
|
|
len++;
|
|
value = ft_strdup(arg + len);
|
|
msh->env = env_add_back(msh->env, name, value);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void delete_from_env(t_msh *msh, char *name)
|
|
{
|
|
t_env *tmp_env;
|
|
t_env *prev;
|
|
|
|
tmp_env = msh->env;
|
|
prev = 0;
|
|
while (tmp_env)
|
|
{
|
|
if (!strcmp(name, tmp_env->name))
|
|
{
|
|
free(tmp_env->name);
|
|
free(tmp_env->value);
|
|
if (!prev)
|
|
msh->env = tmp_env->next;
|
|
else
|
|
prev->next = tmp_env->next;
|
|
free(tmp_env);
|
|
return ;
|
|
}
|
|
prev = tmp_env;
|
|
tmp_env = tmp_env->next;
|
|
}
|
|
}
|
|
|
|
int ft_unset(t_msh *msh)
|
|
{
|
|
t_cmd *cmd;
|
|
|
|
cmd = msh->cmds;
|
|
if (cmd)
|
|
cmd = cmd->next;
|
|
while (cmd && cmd->type == ARG)
|
|
{
|
|
delete_from_env(msh, cmd->token);
|
|
cmd = cmd->next;
|
|
}
|
|
return (0);
|
|
}
|