gnl

get_next_line.c

@@ -0,0 +1,73 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   get_next_line.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: aortigos <aortigos@student.42malaga.com>   +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/03/15 18:37:44 by aortigos          #+#    #+#             */
+/*   Updated: 2024/03/15 19:31:56 by aortigos         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "get_next_line.h"
+
+char	*ft_read_to_left_str(int fd, char *left_str)
+{
+	char	*buff;
+	int		rd_bytes;
+
+	buff = malloc((BUFFER_SIZE + 1) * sizeof(char));
+	if (!buff)
+		return (NULL);
+	rd_bytes = 1;
+	while (!ft_strchr(left_str, '\n') && rd_bytes != 0)
+	{
+		rd_bytes = read(fd, buff, BUFFER_SIZE);
+		if (rd_bytes == -1)
+		{
+			free(left_str);
+			free(buff);
+			return (NULL);
+		}
+		buff[rd_bytes] = '\0';
+		left_str = ft_strjoin(left_str, buff);
+	}
+	free(buff);
+	return (left_str);
+}
+
+char	*get_next_line(int fd)
+{
+	char		*line;
+	static char	*left_str;
+
+	if (fd < 0 || BUFFER_SIZE <= 0)
+	{
+		return (0);
+	}
+	left_str = ft_read_to_left_str(fd, left_str);
+	if (!left_str)
+	{
+		free(left_str);
+		return (NULL);
+	}
+	line = ft_get_line(left_str);
+	left_str = ft_new_left_str(left_str);
+	return (line);
+}
+
+/*
+int main()
+{
+	int fd = open("test.txt", O_RDONLY);
+	char *line;
+
+	while((line = get_next_line(fd)) != NULL)
+	{
+		printf("Linea leida: %s\n", line);
+		free(line);
+	}
+	close(fd);
+	return (0);
+}*/