75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* get_next_line.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: adjoly <adjoly@student.42angouleme.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2023/12/01 17:11:59 by adjoly #+# #+# */
|
|
/* Updated: 2024/02/04 14:23:07 by adjoly ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "get_next_line.h"
|
|
|
|
char check_line(char *res, char *buf)
|
|
{
|
|
int i;
|
|
int j;
|
|
|
|
i = 0;
|
|
j = 0;
|
|
while (res[i] && res[i] != '\n')
|
|
i++;
|
|
if (res[i] == '\n')
|
|
{
|
|
i++;
|
|
while (res[i])
|
|
{
|
|
buf[j] = res[i];
|
|
i++;
|
|
j++;
|
|
}
|
|
buf[j] = 0;
|
|
res[i - j] = 0;
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
char *ft_read_error(char **buf, char *res)
|
|
{
|
|
free(*buf);
|
|
*buf = NULL;
|
|
if (res[0] != 0)
|
|
return (res);
|
|
free(res);
|
|
return (NULL);
|
|
}
|
|
|
|
char *get_next_line(int fd)
|
|
{
|
|
static char *buf;
|
|
char *res;
|
|
ssize_t bytes_read;
|
|
|
|
if (BUFFER_SIZE <= 0 || fd < 0 || fd > 1023)
|
|
return (NULL);
|
|
if (!buf)
|
|
buf = ft_calloc(sizeof(char), BUFFER_SIZE + 1);
|
|
res = ft_calloc(1, 1);
|
|
while (buf)
|
|
{
|
|
res = ft_strjoin_gnl(res, buf);
|
|
if (!res)
|
|
return (NULL);
|
|
if (check_line(res, buf))
|
|
return (res);
|
|
bytes_read = read(fd, buf, BUFFER_SIZE);
|
|
if (bytes_read < 1)
|
|
return (ft_read_error(&buf, res));
|
|
buf[bytes_read] = 0;
|
|
}
|
|
return (NULL);
|
|
}
|