did single command exec

exec.c

@@ -6,7 +6,7 @@
 /*   By: marde-vr <marde-vr@42angouleme.fr>         +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/02/07 14:12:49 by tomoron           #+#    #+#             */
-/*   Updated: 2024/02/13 16:23:01 by marde-vr         ###   ########.fr       */
+/*   Updated: 2024/02/16 14:11:39 by marde-vr         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -21,7 +21,7 @@ int	exec_builtin(t_cmd *parsed_cmd, t_env *env)
 	else if (!ft_strcmp(parsed_cmd->token, "env"))
 		g_return_code = print_env(env);
 	else if (!ft_strcmp(parsed_cmd->token, "exit"))
-		ft_exit(parsed_cmd, env);
+		exit_bt(parsed_cmd, env);
 	else if (!ft_strcmp(parsed_cmd->token, "pwd"))
 		g_return_code = pwd();
 	else
@@ -29,9 +29,127 @@ int	exec_builtin(t_cmd *parsed_cmd, t_env *env)
 	return (STDOUT_FILENO);
 }
 
+void	ft_exit(t_cmd *parsed_cmd, t_env *env, int exit_code)
+{
+	free_cmd(parsed_cmd);
+	free_env(env);
+	exit(exit_code);
+}
+
+int	get_args_count(t_cmd *parsed_cmd)
+{
+	int		count;
+	t_cmd	*cur_cmd;
+
+	count = 0;
+	cur_cmd = parsed_cmd;
+	while (cur_cmd->next != 0 && cur_cmd->type == ARG)
+	{
+		cur_cmd = cur_cmd->next;
+		count++;
+	}
+	if (cur_cmd->type == ARG)
+		count++;
+	return (count);
+}
+
+char	**split_paths_from_env(t_env *env)
+{
+	t_env	*cur_env_var;
+	int		path_in_envp;
+
+	path_in_envp = 0;
+	cur_env_var = env;
+	while (cur_env_var->next != 0)
+	{
+		if (!ft_strcmp(cur_env_var->name, "PATH"))
+		{
+			path_in_envp = 1;
+			break ;
+		}
+		cur_env_var = cur_env_var->next;
+	}
+	if (!path_in_envp)
+	{
+		// error: PATH not found
+		return (0);
+	}
+	return (ft_split(cur_env_var->value, ':'));
+}
+
+void	find_cmd_path(t_cmd *cmd, t_env *env, char **paths, int *found)
+{
+	char	*tmp;
+	char	*path;
+	int		i;
+
+	i = 0;
+	while (paths[i])
+	{
+		path = paths[i];
+		tmp = ft_strjoin(path, "/");
+		if (!tmp)
+			ft_exit(cmd, env, 1);
+		path = ft_strjoin(tmp, cmd->token);
+		if (!path)
+			ft_exit(cmd, env, 1);
+		free(tmp);
+		if (access(path, X_OK) != -1)
+		{
+			*found = 1;
+			free(cmd->token);
+			cmd->token = path;
+			break ;
+		}
+		free(path);
+		i++;
+	}
+}
+
+void	get_cmd_path(t_cmd *cmd, t_env *env)
+{
+	char	**paths;
+	int		found;
+
+	found = 0;
+	if (access(cmd->token, X_OK != -1))
+		found = 1;
+	else
+	{
+		paths = split_paths_from_env(env);
+		if (!paths)
+			ft_exit(cmd, env, 1);
+		find_cmd_path(cmd, env, paths, &found);
+	}
+	if (!found)
+	{
+		// error message: cmd->token command not found
+		free(cmd->token);
+		cmd->token = 0;
+	}
+}
+
 void	exec_command(t_cmd *parsed_cmd, t_env *env)
 {
+	t_cmd	*cur_cmd;
+	int		args_count;
+	char	**cmd_args;
+	int		i;
+
 	if (!parsed_cmd || exec_builtin(parsed_cmd, env))
 		return ;
-	ft_printf("not a builtin\n");
+	cur_cmd = parsed_cmd;
+	args_count = get_args_count(parsed_cmd);
+	cmd_args = calloc(args_count, sizeof(char *));
+	if (!cmd_args)
+		ft_exit(parsed_cmd, env, 1);
+	i = 0;
+	while (i < args_count)
+	{
+		cmd_args[i] = cur_cmd->token;
+		cur_cmd = cur_cmd->next;
+		i++;
+	}
+	get_cmd_path(parsed_cmd, env);
+	execve(parsed_cmd->token, cmd_args, env_to_char_tab(env));
 }

exit.c

@@ -6,7 +6,7 @@
 /*   By: marde-vr <marde-vr@42angouleme.fr>         +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/02/07 16:04:11 by tomoron           #+#    #+#             */
-/*   Updated: 2024/02/14 12:44:03 by tomoron          ###   ########.fr       */
+/*   Updated: 2024/02/16 13:07:01 by marde-vr         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,7 +19,7 @@ void	print_numeric_arg_err(char *arg)
 	ft_putstr_fd(": numeric argument required\n", 2);
 }
 
-void	ft_exit(t_cmd *args, t_env *env)
+void	exit_bt(t_cmd *args, t_env *env)
 {
 	t_cmd	*start;	
 	int		exit_code;