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get_next_line_bonus.c
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get_next_line_bonus.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line_bonus.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mouaammo <mouaammo@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/11/02 17:26:54 by mouaammo #+# #+# */
/* Updated: 2022/11/06 12:02:42 by mouaammo ### ########.fr */
/* */
/* ************************************************************************** */
#include "get_next_line_bonus.h"
#ifndef BUFFER_SIZE
# define BUFFER_SIZE 5
#endif
char *get_next_line(int fd)
{
char *buffer;
static char *stash[OPEN_MAX];
int bytes;
char *line;
if (fd < 0 || BUFFER_SIZE <= 0 || BUFFER_SIZE >= INT_MAX
|| read(fd, NULL, 0) < 0)
return (NULL);
line = NULL;
while (check_new_line(stash[fd]) == -1)
{
buffer = (char *) malloc(sizeof(char) * (BUFFER_SIZE + 1));
if (!buffer)
return (NULL);
bytes = (int) read(fd, buffer, BUFFER_SIZE);
buffer[bytes] = 0;
stash[fd] = str_join(stash[fd], buffer);
if (!bytes && stash[fd] && !stash[fd][0])
break ;
if (!bytes)
return (get_reminder(&stash[fd], 0));
}
if (check_new_line(stash[fd]) != -1)
return (get_my_line(&stash[fd], line, check_new_line(stash[fd])));
return (free(stash[fd]), stash[fd] = NULL, NULL);
}
int check_new_line(char *str)
{
int i;
if (!str)
return (-1);
i = 0;
while (str[i])
{
if (str[i] == '\n')
return (i);
i++;
}
return (-1);
}
char *get_my_line(char **temp, char *line, int ln)
{
if (!temp)
return (NULL);
line = ft_substr(*temp, 0, ln + 1);
*temp = get_reminder(temp, ln + 1);
return (line);
}