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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:07:20 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:07:20 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdint.h>
#include <unistd.h>
static char
*ft_strjoin_gnl(char *s1, char *s2)
{
size_t i;
size_t j;
char *dst;
size_t size1;
size_t size2;
i = -1;
j = -1;
size1 = ft_strlen_gnl(s1, 10);
size2 = ft_strlen_gnl(s2, 10);
if (!(dst = (char*)malloc((size1 + size2 + 1) * sizeof(char))))
return (NULL);
while (++i < size1)
dst[i] = s1[i];
while (++j < size2)
dst[i + j] = s2[j];
dst[i + j] = '\0';
ft_memdel((void**)&s1);
return (dst);
}
static int
ft_read_gnl(int fd, char **line, t_gnl *curr)
{
char *buf;
char *end;
int64_t size;
if (!(buf = malloc(BUFFER_SIZE + 1)))
return (-1);
*buf = 0;
*line = ft_strjoin_gnl(*line, curr->rest);
size = BUFFER_SIZE;
while ((end = ft_strchr_gnl(buf, 10)) == NULL && size == BUFFER_SIZE)
{
*line = ft_strjoin_gnl(*line, buf);
if ((size = read(fd, buf, BUFFER_SIZE)) == -1)
ft_memdel((void**)&buf);
if (size == -1)
return (-1);
buf[size] = 0;
}
*line = ft_strjoin_gnl(*line, buf);
if (end)
curr->rest = ft_swap_gnl(end + 1, curr->rest);
ft_memdel((void**)&buf);
if (!end)
return (0);
return (size);
}
int
get_next_line(int fd, char **line)
{
static t_gnl *list;
t_gnl *curr;
char *end;
int size;
if (fd < 0 || BUFFER_SIZE <= 0)
return (-1);
if (!(*line = (char *)malloc(1 * sizeof(char))))
return (-1);
**line = 0;
curr = ft_find_fd(fd, &list);
if (ft_strchr_gnl(curr->rest, 10) == NULL)
size = ft_read_gnl(fd, line, curr);
else
{
end = ft_strchr_gnl(curr->rest, 10);
*line = ft_strjoin_gnl(*line, curr->rest);
curr->rest = ft_swap_gnl(end + 1, curr->rest);
size = 1;
}
if (size > 0)
return (1);
ft_free_gnl(fd, &list);
return ((size == -1) ? -1 : 0);
}
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