init with functionnal works

2019-12-11 01:00:33 +01:00
commit 7fd709fcac
5 changed files with 513 additions and 0 deletions
--- a/get_next_line.c
+++ b/get_next_line.c
@@ -0,0 +1,140 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   get_next_line.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: hulamy <marvin@42.fr>                      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/12/11 00:27:09 by hulamy            #+#    #+#             */
+/*   Updated: 2019/12/11 00:56:54 by hulamy           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "get_next_line.h"
+
+/*
+**	#include <stdio.h>	//for printf
+**	#include <fcntl.h>	//for open
+**
+**	int		main(int ac, char **av)
+**	{
+**		int		*fd;
+**		int		i;
+**		int		j;
+**		char	*line;
+**
+**		if (ac < 2)
+**			return (0);
+**		line = NULL;
+**		i = 0;
+**		if (!(fd = (int *)malloc(sizeof(int) * ac)))
+**			return (0);
+**		while (++i <= ac - 1)
+**			fd[i - 1] = open(av[i], O_RDONLY);
+**		i = 0;
+**		j = 0;
+**		while (j < ac - 1)
+**		{
+**			if (get_next_line(fd[i], &line) > 0)
+**			{
+**				printf("fd%i| %s\n", fd[i], line);
+**				free(line);
+**				j = 0;
+**			}
+**			else
+**			{
+**				printf("fd%i|*FINI*\n", fd[i]);
+**				j++;
+**			}
+**			i++;
+**			if (i >= ac - 1)
+**				i = 0;
+**		}
+**		while (1);
+**		return (0);
+**	}
+*/
+
+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->string = ft_strdup("")))
+			return (0);
+		if (*lst)
+		{
+			tmp->next = (*lst)->next;
+			(*lst)->next = tmp;
+		}
+		else
+			tmp->next = tmp;
+		*lst = tmp;
+	}
+	return (1);
+}
+
+char	*ft_strjoinfree(char const *s1, char const *s2)
+{
+	char	*str;
+	int		len;
+	int		j;
+
+	if (!s1 || !s2)
+		return (NULL);
+	len = ft_strlen(s1) + ft_strlen(s2);
+	if (!(str = (char *)malloc(sizeof(char) * (len + 1))))
+		return (NULL);
+	len = 0;
+	j = 0;
+	while (s1[j] != '\0')
+		str[len++] = s1[j++];
+	j = 0;
+	while (s2[j] != '\0')
+		str[len++] = s2[j++];
+	str[len] = '\0';
+	free((char*)s1);
+	return (str);
+}
+
+int		hasnewline(char *str, t_gnlist *lst, char **line)
+{
+	str[0] = '\0';
+	if (!(*line = ft_strdup(lst->string)))
+		return (-1);
+	ft_memmove(lst->string, str + 1, ft_strlen(str + 1) + 1);
+	return (1);
+}
+
+int		get_next_line(const int fd, char **line)
+{
+	char				buf[BUFF_SIZE + 1];
+	int					ret;
+	static t_gnlist		*lst = NULL;
+	char				*str;
+
+	if (!(multi_fd(fd, &lst)) || !(ret = 1) || !line || fd < 0)
+		return (-1);
+	while (ret > 0)
+	{
+		if ((str = ft_strchr(lst->string, '\n')))
+			return (hasnewline(str, lst, line));
+		if ((ret = read(fd, buf, BUFF_SIZE)) < 0)
+			return (-1);
+		buf[ret] = '\0';
+		if (!(lst->string = ft_strjoinfree(lst->string, buf)))
+			return (-1);
+	}
+	if (*(lst->string) && !(*line = ft_strdup(lst->string)))
+		return (-1);
+	if (*(lst->string) && ++ret == 1)
+		(lst->string)[0] = '\0';
+	return (ret);
+}