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export append

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This commit is contained in:
whaffman 2025-03-06 17:45:03 +01:00
parent 5ad220e434
commit 2c5499a72f
1 changed files with 64 additions and 14 deletions
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78
src/builtin/builtin_export.c
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@ -6,7 +6,7 @@
/* By: whaffman <whaffman@student.codam.nl> +#+ */
/* +#+ */
/* Created: 2025/02/20 11:32:53 by whaffman #+# #+# */
/* Updated: 2025/03/04 16:41:06 by whaffman ######## odam.nl */
/* Updated: 2025/03/06 17:41:54 by whaffman ######## odam.nl */
/* */
/* ************************************************************************** */
@ -24,29 +24,79 @@ static int ft_isvalid_identifier(char *str)
}
return (TRUE);
}
static int actually_append(t_minishell *msh, char *name, char *value)
{
char *value_old;
if (name != NULL && value != NULL)
{
if (environment_get(msh, name) == NULL)
environment_update(msh, name, value);
else
{
value_old = environment_get(msh, name)->value;
value = ft_strjoin_safe(msh, value_old, value);
environment_update(msh, name, value);
}
return (SUCCESS);
}
return (FAILURE);
}
static int handle_append(t_minishell *msh, char *arg)
{
char *name;
char *name_end;
char *value;
int ret;
ret = FAILURE;
name_end = ft_strnstr(arg, "+=", ft_strlen(arg));
if (name_end == NULL)
return (FAILURE);
name = ft_substr_safe(msh, arg, 0, name_end - arg);
value = ft_strdup_safe(msh, ft_strchr(arg, '=') + 1);
if (name != NULL && value != NULL)
ret = actually_append(msh, name, value);
free_safe(msh, (void **)&name);
free_safe(msh, (void **)&value);
return (ret);
}
static int handle_argument(t_minishell *msh, char *arg)
{
char **arr;
char *err;
arr = NULL;
if (ft_strnstr(arg, "+=", ft_strlen(arg)) != NULL)
return (handle_append(msh, arg));
arr = ft_split_safe(msh, arg, '=');
if (arr != NULL && arr[0] != NULL
&& ft_isvalid_identifier(arr[0]) == TRUE)
environment_update(msh, arr[0], arr[1]);
else
{
err = ft_strjoin_safe(msh, arg, ": not a valid identifier");
error_msg("export", err);
return (ft_free_arr_safe(msh, arr), FAILURE);
}
ft_free_arr_safe(msh, arr);
return (SUCCESS);
}
int builtin_export(t_minishell *msh, t_command *cmd)
{
char *err;
char **arr;
int i;
i = 0;
arr = NULL;
if (cmd->args[1] == NULL)
environment_print(msh, TRUE);
while (cmd->args[++i] != NULL)
{
arr = ft_split_safe(msh, cmd->args[i], '=');
if (arr != NULL && arr[0] != NULL && ft_isvalid_identifier(arr[0]) == TRUE)
environment_update(msh, arr[0], arr[1]);
else
{
err = ft_strjoin_safe(msh, cmd->args[1], ": not a valid identifier");
error_msg("export", err);
return (ft_free_arr_safe(msh, arr), EXIT_FAILURE);
}
ft_free_arr_safe(msh, arr);
if (!handle_argument(msh, cmd->args[i]))
return (EXIT_FAILURE);
}
return (EXIT_SUCCESS);
}