75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* get_next_line.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: kcolin <marvin@42.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2024/10/23 20:32:46 by kcolin #+# #+# */
|
|
/* Updated: 2024/11/06 17:33:37 by kcolin ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "get_next_line.h"
|
|
#include <stdlib.h>
|
|
|
|
/*
|
|
static int num_allocs = 0;
|
|
|
|
static void *xmalloc(size_t size)
|
|
{
|
|
if (FAIL_AFTER > 0 && num_allocs++ >= FAIL_AFTER)
|
|
{
|
|
return 0;
|
|
}
|
|
return malloc(size);
|
|
}
|
|
|
|
#define malloc(x) xmalloc(x)
|
|
*/
|
|
|
|
char *read_at_least_one_line(char *buffer, int fd)
|
|
{
|
|
char *read_buffer;
|
|
int bytes_read;
|
|
|
|
read_buffer = malloc((BUFFER_SIZE + 1 ) * sizeof(char));
|
|
if (read_buffer == NULL)
|
|
return (NULL);
|
|
bytes_read = 1;
|
|
while (!ft_strchr(buffer, '\n') && bytes_read > 0)
|
|
{
|
|
bytes_read = read(fd, read_buffer, BUFFER_SIZE);
|
|
if (bytes_read < 0)
|
|
{
|
|
free(buffer);
|
|
free(read_buffer);
|
|
return (NULL);
|
|
}
|
|
read_buffer[bytes_read] = '\0';
|
|
buffer = ft_strjoin(buffer, read_buffer);
|
|
}
|
|
free(read_buffer);
|
|
return (buffer);
|
|
}
|
|
|
|
#include <stdio.h>
|
|
|
|
char *get_next_line(int fd)
|
|
{
|
|
static char *buffer = NULL;
|
|
char *out;
|
|
size_t line_length;
|
|
|
|
if (fd < 0)
|
|
return (NULL);
|
|
buffer = read_at_least_one_line(buffer, fd);
|
|
if (buffer == NULL)
|
|
return (NULL);
|
|
line_length = 0;
|
|
while (buffer[line_length] != '\0' || buffer[line_length] != '\n')
|
|
line_length++;
|
|
out = ft_substr(buffer, 0, line_length + 1);
|
|
buffer = ft_substr(buffer, line_length, ft_strlen(buffer) - line_length);
|
|
return (out);
|
|
}
|