「✨」 feat(heredoc): multiple heredoc implementation

src/exec/heredoc.c

@@ -6,47 +6,101 @@
 /*   By: mmoussou <mmoussou@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/05/20 09:19:39 by mmoussou          #+#    #+#             */
-/*   Updated: 2024/05/21 00:34:48 by mmoussou         ###   ########.fr       */
+/*   Updated: 2024/05/23 07:18:01 by mmoussou         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "minishell.h"
 
+/*
+	# mode
+		0: ouvre un nouveau fichier
+		<fd>: close ce fd
+		-1: pour signifier qu'il faut decrémenter la static
+ */
+int	fd_manager(int mode)
+{
+	static int	index = 0;
+	char		*index_itoa;
+	char		*path;
+	int			fd;
+
+	if (mode > 0)
+		close(mode);
+	if (mode)
+	{
+		index--;
+		return (0);
+	}
+	path = ft_calloc(sizeof(char), 24 + 3);
+	if (!path)
+		return (-1);
+	index_itoa = ft_itoa(index);
+	if (!index_itoa)
+		free(path);
+	if (!index_itoa)
+		return (-1);
+	index++;
+	strcat(path, "/tmp/.minishell-heredoc-");
+	strcat(path, index_itoa);
+	fd = open(path, O_RDONLY | O_WRONLY | O_TRUNC | O_CREAT, 0644);
+	return (fd);
+}
+
+static int	get_input(char *delimiter, int fd)
+{
+	char	*line;
+	int		status;
+
+	printf("%s | ", delimiter);
+	line = readline("heredoc> ");
+	while (ft_strcmp(line, delimiter))
+	{
+		status = write(fd, line, ft_strlen(line));
+		if (status == -1)
+			fd_manager(fd);
+		if (status == -1)
+			return (-1);
+		status = write(fd, "\n", 1);
+		if (status == -1)
+			fd_manager(fd);
+		if (status == -1)
+			return (-1);
+		free(line);
+		line = readline("heredoc> ");
+	}
+	free(line);
+	status = write(fd, "\0", 1);
+	if (status == -1)
+		fd_manager(fd);
+	if (status == -1)
+		return (-1);
+	return (0);
+}
+
 int	ft_heredoc(char *delimiter)
 {
 	int		fork_pid;
-	int		tmp_fd;
+	int		fd;
-	int		status;
-	char	*line;
 
-	tmp_fd = open("/tmp/.minishell-heredoc", O_RDONLY | O_WRONLY | O_TRUNC | O_CREAT, 0644);
+	fd = fd_manager(0);
-	if (tmp_fd == -1)
+	if (fd == -1)
+	{
+		fd_manager(-1);
 		return (-1);
+	}
 	fork_pid = fork();
 	if (fork_pid == -1)
 	{
-		close(tmp_fd);
+		fd_manager(fd);
 		return (-1);
 	}
 	if (!fork_pid)
 	{
-		line = readline("heredoc> ");
+		get_input(delimiter, fd);
-		while (ft_strcmp(line, delimiter))
+		exit(0);
-		{
-			status = write(tmp_fd, line, ft_strlen(line));
-			status = write(tmp_fd, "\n", 1);
-			free(line);
-			line = readline("heredoc> ");
-		}
-		free(line);
-		status = write(tmp_fd, "\0", 1);
-		if (status == -1)
-		{
-			close(tmp_fd);
-			return (-1);
-		}
 	}
 	else
 		waitpid(fork_pid, NULL, 0);
-	return (tmp_fd);
+	return (fd);
 }