114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
|
/* ************************************************************************** */
|
||
|
|
/* */
|
||
|
|
/* ::: :::::::: */
|
||
|
|
/* get_next_line.c :+: :+: :+: */
|
||
|
|
/* +:+ +:+ +:+ */
|
||
|
|
/* By: gtertysh <marvin@42.fr> +#+ +:+ +#+ */
|
||
|
|
/* +#+#+#+#+#+ +#+ */
|
||
|
|
/* Created: 2017/01/28 18:15:15 by gtertysh #+# #+# */
|
||
|
|
/* Updated: 2017/03/24 20:41:17 by gtertysh ### ########.fr */
|
||
|
|
/* */
|
||
|
|
/* ************************************************************************** */
|
||
|
|
|
||
|
|
#include "libft.h"
|
||
|
|
|
||
|
|
t_fd *new_node(int fd)
|
||
|
|
{
|
||
|
|
t_fd *new;
|
||
|
|
|
||
|
|
new = NULL;
|
||
|
|
if ((new = (t_fd *)malloc(sizeof(t_fd))))
|
||
|
|
{
|
||
|
|
new->fd = fd;
|
||
|
|
new->n = NULL;
|
||
|
|
new->next = NULL;
|
||
|
|
new->t = 0;
|
||
|
|
}
|
||
|
|
return (new);
|
||
|
|
}
|
||
|
|
|
||
|
|
t_fd *find_fd(int fd, t_fd **cur_fd)
|
||
|
|
{
|
||
|
|
if (!*cur_fd)
|
||
|
|
return ((*cur_fd = new_node(fd)));
|
||
|
|
while ((*cur_fd))
|
||
|
|
{
|
||
|
|
if ((*cur_fd)->fd == fd)
|
||
|
|
return (*cur_fd);
|
||
|
|
cur_fd = &((*cur_fd)->next);
|
||
|
|
}
|
||
|
|
return ((*cur_fd = new_node(fd)));
|
||
|
|
}
|
||
|
|
|
||
|
|
int check_reminder(t_fd *c, char **line)
|
||
|
|
{
|
||
|
|
char *substr;
|
||
|
|
char *old_line;
|
||
|
|
|
||
|
|
old_line = *line;
|
||
|
|
if (c->n)
|
||
|
|
{
|
||
|
|
if ((c->t = ft_strchr(c->n, '\n')))
|
||
|
|
{
|
||
|
|
substr = ft_strsub(c->n, 0, c->t - c->n);
|
||
|
|
*line = ft_strjoin(*line, substr);
|
||
|
|
free(substr);
|
||
|
|
c->n = ++(c->t);
|
||
|
|
return (1);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
*line = ft_strjoin(*line, c->n);
|
||
|
|
c->n = 0;
|
||
|
|
}
|
||
|
|
free(old_line);
|
||
|
|
}
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int check_buf(t_fd *c, char **line)
|
||
|
|
{
|
||
|
|
char *substr;
|
||
|
|
char *old_line;
|
||
|
|
|
||
|
|
old_line = *line;
|
||
|
|
while ((c->readed = read(c->fd, c->b, BUFF_SIZE)))
|
||
|
|
{
|
||
|
|
if (c->readed == -1)
|
||
|
|
return (-1);
|
||
|
|
c->b[c->readed] = 0;
|
||
|
|
if ((c->n = ft_strchr(c->b, '\n')))
|
||
|
|
{
|
||
|
|
substr = ft_strsub(c->b, 0, c->n++ - c->b);
|
||
|
|
old_line = *line;
|
||
|
|
*line = ft_strjoin(*line, substr);
|
||
|
|
free(substr);
|
||
|
|
free(old_line);
|
||
|
|
break ;
|
||
|
|
}
|
||
|
|
old_line = *line;
|
||
|
|
*line = ft_strjoin(*line, c->b);
|
||
|
|
free(old_line);
|
||
|
|
}
|
||
|
|
return (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
int get_next_line(const int fd, char **line)
|
||
|
|
{
|
||
|
|
static t_fd *head_fd;
|
||
|
|
t_fd *c;
|
||
|
|
|
||
|
|
if (fd < 0 || !line)
|
||
|
|
return (-1);
|
||
|
|
*line = ft_strnew(0);
|
||
|
|
c = find_fd(fd, &head_fd);
|
||
|
|
c->readed = 0;
|
||
|
|
if (check_reminder(c, line))
|
||
|
|
return (1);
|
||
|
|
if (check_buf(c, line) == -1)
|
||
|
|
return (-1);
|
||
|
|
if ((c->readed == 0) && !ft_strlen(*line))
|
||
|
|
return (0);
|
||
|
|
return (1);
|
||
|
|
}
|