127 lines
2.7 KiB
C
127 lines
2.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* export.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tordner <[email protected]> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/04/23 11:54:38 by lfirmin #+# #+# */
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/* Updated: 2025/06/01 21:30:55 by tordner ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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int update_env_var(char **env, char *var)
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{
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int i;
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char *equal_sign;
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int var_name_len;
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equal_sign = ft_strchr(var, '=');
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if (!equal_sign)
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return (0);
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var_name_len = equal_sign - var;
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i = 0;
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while (env[i])
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{
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if (ft_strncmp(env[i], var, var_name_len) == 0
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&& (env[i][var_name_len] == '=' || env[i][var_name_len] == '\0'))
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{
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free(env[i]);
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env[i] = ft_strdup(var);
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if (!env[i])
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return (-1);
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return (1);
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}
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i++;
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}
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return (0);
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}
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int handle_export_validation(char *arg)
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{
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int validity;
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validity = is_valid_identifier(arg);
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if (validity <= 0)
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{
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ft_putstr_fd("export: '", 2);
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ft_putstr_fd(arg, 2);
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if (validity == -1)
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{
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ft_putstr_fd("': option invalide\n", 2);
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return (2);
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}
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else
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ft_putstr_fd("': not a valid identifier\n", 2);
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return (1);
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}
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return (0);
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}
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int process_single_export_arg(t_shell *shell, char *arg)
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{
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int validation_result;
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int status;
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validation_result = handle_export_validation(arg);
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if (validation_result > 0)
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{
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if (validation_result == 2)
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return (2);
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return (1);
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}
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if (ft_strchr(arg, '='))
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{
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status = handle_env_var(shell, arg);
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if (status != 0)
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return (status);
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}
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return (0);
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}
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int process_export_args(t_shell *shell, char **args, int i)
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{
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int ret;
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int status;
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int success;
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ret = 1;
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success = 0;
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while (args[i])
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{
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status = process_single_export_arg(shell, args[i]);
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if (status == 2)
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return (2);
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if (status == 1)
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{
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i++;
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continue ;
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}
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if (status == 0)
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success = 1;
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i++;
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}
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if (success)
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ret = 0;
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return (ret);
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}
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int ft_export(t_shell *shell, t_cmd *cmd)
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{
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int i;
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if (!cmd->args[1])
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{
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i = 0;
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while (shell->env[i])
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{
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printf("declare -x %s\n", shell->env[i]);
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i++;
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}
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return (0);
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}
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return (process_export_args(shell, cmd->args, 1));
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}
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