diff --git a/Makefile b/Makefile
index e725a23..22d7640 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@ NAME	=	libft.a
 CC		=	gcc
 VPATH	=	srcs/
 
-IDIR	=	.
+IDIR	=	./includes
 _DEP	=	libft.h
 DEPS	=	$(_DEP:%.h=$(IDIR)/%.h)
 
@@ -91,7 +91,9 @@ SRCS	=	ft_memset.c \
 			ft_foreach.c \
 			ft_issort.c \
 			ft_arraymap.c \
-			ft_strmultisplit.c
+			ft_strmultisplit.c \
+			\
+			get_next_line.c
 
 ODIR	=	./builds
 OBJS	=	$(SRCS:%.c=$(ODIR)/%.o)
diff --git a/includes/get_next_line.h b/includes/get_next_line.h
new file mode 100644
index 0000000..d8c3d58
--- /dev/null
+++ b/includes/get_next_line.h
@@ -0,0 +1,35 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   get_next_line.h                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/01/29 10:19:37 by hulamy            #+#    #+#             */
+/*   Updated: 2020/02/25 18:48:49 by hulamy           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef GET_NEXT_LINE_H
+# define GET_NEXT_LINE_H
+
+# include <string.h>
+# include <unistd.h>
+# include <stdlib.h>
+
+# ifndef BUFFER_SIZE
+#  define BUFFER_SIZE 1
+# endif
+
+typedef struct		s_gnlist
+{
+	int				lfd;
+	char			*str;
+	struct s_gnlist	*next;
+}					t_gnlist;
+
+int					get_next_line(const int fd, char **line);
+int					multi_fd(int fd, t_gnlist **lst);
+int					free_lst(t_gnlist **lst, int ret);
+
+#endif
diff --git a/libft.h b/includes/libft.h
similarity index 96%
rename from libft.h
rename to includes/libft.h
index 639bb19..a802bbc 100644
--- a/libft.h
+++ b/includes/libft.h
@@ -6,7 +6,7 @@
 /*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/11/25 14:45:53 by hulamy            #+#    #+#             */
-/*   Updated: 2020/02/16 15:10:37 by hulamy           ###   ########.fr       */
+/*   Updated: 2020/02/25 18:43:18 by hulamy           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -15,6 +15,7 @@
 # include <string.h>
 # include <unistd.h>
 # include <stdlib.h>
+# include "get_next_line.h"
 
 void				*ft_memset(void *b, int c, size_t len);
 void				ft_bzero(void *s, size_t n);
@@ -101,5 +102,6 @@ int					ft_issort(int *tab, int length, int (*f)(int, int));
 int					*ft_arraymap(int *tab, int length, int(*f)(int));
 void				ft_putnbrendl(int n);
 void				ft_putnbrendl_fd(int n, int fd);
+int					get_next_line(const int fd, char **line);
 
 #endif
diff --git a/srcs/get_next_line.c b/srcs/get_next_line.c
new file mode 100644
index 0000000..65e545c
--- /dev/null
+++ b/srcs/get_next_line.c
@@ -0,0 +1,136 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   get_next_line.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/12/31 17:05:53 by hulamy            #+#    #+#             */
+/*   Updated: 2020/02/25 18:48:55 by hulamy           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+/*
+**	#include <stdio.h>	//for printf
+**	#include <fcntl.h>	//for open
+**
+**	int		main(int ac, char **av)
+**	{
+**		int		*fd;
+**		int		i = 0;
+**		int		j = 0;
+**		int		ret;
+**		char	*line = NULL;
+**
+**		fd = (int *)malloc(sizeof(int) * ac);
+**		while (++i <= ac - 1)
+**			fd[i - 1] = open(av[i], O_RDONLY);
+**		i = 0;
+**		while (j < ac - 1)
+**		{
+**			if ((ret = get_next_line(fd[i], &line)) > 0)
+**			{
+**				printf(" [fd%i-%i] %s\n", fd[i], ret, line);
+**				free(line);
+**				j = 0;
+**			}
+**			else if (ret == -1)
+**			{
+**				printf("[fd%i-%i] *ERROR*\n", fd[i], ret);
+**				free(line);
+**				j++;
+**			}
+**			else if (*line != '\0')
+**				printf(" [fd%i-%i] %s\n", fd[i], ret, line);
+**			else
+**			{
+**				printf("[fd%i-%i] %s *FINI*\n", fd[i], ret, line);
+**				free(line);
+**				j++;
+**			}
+**			i++;
+**			if (i >= ac - 1)
+**				i = 0;
+**		}
+**		free(fd);
+**		//while (1);
+**		return (0);
+**	}
+*/
+
+int		free_lst(t_gnlist **lst, int ret)
+{
+	t_gnlist	*tmp;
+
+	tmp = *lst;
+	while (tmp->next != *lst)
+		tmp = tmp->next;
+	tmp->next = (*lst)->next;
+	free((*lst)->str);
+	if (*lst == (*lst)->next)
+	{
+		free(*lst);
+		*lst = NULL;
+	}
+	else
+	{
+		free(*lst);
+		*lst = tmp;
+	}
+	return (ret);
+}
+
+int		multi_fd(int fd, t_gnlist **lst)
+{
+	t_gnlist	*tmp;
+
+	tmp = *lst;
+	while (*lst && (*lst)->lfd != fd && (*lst)->next != tmp)
+		*lst = (*lst)->next;
+	if (!tmp || ((*lst)->next == tmp && (*lst)->lfd != fd))
+	{
+		if (!(tmp = (t_gnlist*)malloc(sizeof(*tmp))))
+			return (0);
+		tmp->lfd = fd;
+		if (!(tmp->str = ft_strdup("")))
+			return (0);
+		if (*lst)
+		{
+			tmp->next = (*lst)->next;
+			(*lst)->next = tmp;
+		}
+		else
+			tmp->next = tmp;
+		*lst = tmp;
+	}
+	return (1);
+}
+
+int		get_next_line(const int fd, char **line)
+{
+	char				buf[BUFFER_SIZE + 1];
+	int					ret;
+	static t_gnlist		*lst = NULL;
+	char				*str;
+
+	ret = 1;
+	if (!(multi_fd(fd, &lst)) || !line || BUFFER_SIZE < 1)
+		return (free_lst(&lst, -1));
+	while (!(str = ft_strchr(lst->str, '\n')) && ret != 0)
+	{
+		if ((ret = read(fd, buf, BUFFER_SIZE)) < 0)
+			return (free_lst(&lst, -1));
+		buf[ret] = '\0';
+		if (!(lst->str = ft_strjoinfree(lst->str, buf)))
+			return (free_lst(&lst, -1));
+	}
+	if (str != NULL)
+		str[0] = '\0';
+	if (!(*line = ft_strdup(lst->str)))
+		return (free_lst(&lst, -1));
+	if (str != NULL)
+		return (ft_memmove(lst->str, str + 1, ft_strlen(str + 1) + 1) != NULL);
+	return (free_lst(&lst, 0));
+}