123 lines
2.8 KiB
C
Executable File
123 lines
2.8 KiB
C
Executable File
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* export.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: marde-vr <marde-vr@42angouleme.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2024/02/18 18:29:20 by marde-vr #+# #+# */
|
|
/* Updated: 2024/04/26 10:29:05 by tomoron ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "minishell.h"
|
|
|
|
int export_invalid_identifier(char *arg, char *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);
|
|
}
|
|
|
|
t_env *set_env(t_env *env, char *name, char *value, int append)
|
|
{
|
|
t_env *tmp;
|
|
|
|
tmp = env;
|
|
while (tmp)
|
|
{
|
|
if (!ft_strcmp(name, tmp->name))
|
|
{
|
|
free(name);
|
|
if (!*value)
|
|
{
|
|
free(value);
|
|
return (env);
|
|
}
|
|
if (append)
|
|
value = ft_strjoin_free(tmp->value, value, 2);
|
|
if (!value)
|
|
return (env);
|
|
free(tmp->value);
|
|
tmp->value = value;
|
|
return (env);
|
|
}
|
|
tmp = tmp->next;
|
|
}
|
|
return (env_add_back(env, name, value));
|
|
}
|
|
|
|
t_env *export_set_env(t_env *env, char *name, char *value, int append)
|
|
{
|
|
if (!value || !name)
|
|
{
|
|
free(name);
|
|
free(value);
|
|
ft_printf_fd(2, "minishell: malloc failed");
|
|
return (env);
|
|
}
|
|
return (set_env(env, name, value, append));
|
|
}
|
|
|
|
int export_var(t_token *cmd, t_env *env)
|
|
{
|
|
char *arg;
|
|
char *name;
|
|
char *value;
|
|
int len;
|
|
int append;
|
|
len = 0;
|
|
|
|
arg = cmd->value;
|
|
while (arg[len] && arg[len] != '=' && arg[len] != '+')
|
|
len++;
|
|
name = ft_substr(arg, 0, len);
|
|
append = arg[len] == '+';
|
|
if (arg[len] == '=' || (arg[len] == '+' && arg[len + 1] == '='))
|
|
len += 1 + (arg[len] == '+');
|
|
if (!name || !check_var_name(name) || arg[len] == '+')
|
|
return (export_invalid_identifier(arg, name));
|
|
value = ft_strdup(arg + len);
|
|
env = export_set_env(env, name, value, append);
|
|
return (0);
|
|
}
|
|
|
|
int ft_export(t_msh *msh, t_token *cmd, t_env *env)
|
|
{
|
|
int error;
|
|
|
|
error = 0;
|
|
if (cmd && !cmd->next)
|
|
{
|
|
print_env_declare(msh, env);
|
|
return (0);
|
|
}
|
|
cmd = cmd->next;
|
|
while (cmd->next)
|
|
{
|
|
if (export_var(cmd, env))
|
|
error = 1;
|
|
cmd = cmd->next;
|
|
}
|
|
if (export_var(cmd, env))
|
|
error = 1;
|
|
return (error);
|
|
}
|
|
|
|
int ft_unset(t_msh *msh)
|
|
{
|
|
t_token *cmd;
|
|
|
|
cmd = msh->tokens;
|
|
if (cmd)
|
|
cmd = cmd->next;
|
|
while (cmd)
|
|
{
|
|
delete_from_env(msh, cmd->value);
|
|
cmd = cmd->next;
|
|
}
|
|
return (0);
|
|
}
|