42_adjoly/get_next_line
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add protection

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This commit is contained in:
Adam Joly
2023-12-14 13:22:32 +01:00
parent f2b4286731
commit dfbf968e48
1 changed files with 13 additions and 5 deletions
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18
get_next_line.c
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@ -6,11 +6,12 @@
/* By: adjoly <adjoly@student.42.fr> +#+ +:+ +#+ */ /* By: adjoly <adjoly@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */ /* +#+#+#+#+#+ +#+ */
/* Created: 2023/12/01 17:11:59 by adjoly #+# #+# */ /* Created: 2023/12/01 17:11:59 by adjoly #+# #+# */
/* Updated: 2023/12/14 11:52:20 by adjoly ### ########.fr */ /* Updated: 2023/12/14 13:06:54 by adjoly ### ########.fr */
/* */ /* */
/* ************************************************************************** */ /* ************************************************************************** */
#include "get_next_line.h" #include "get_next_line.h"
#include <unistd.h>
char check_line(char *res, char *buf) char check_line(char *res, char *buf)
{ {
@ -37,12 +38,22 @@ char check_line(char *res, char *buf)
return (0); return (0);
} }
char *gnl_end_file(char *res)
{
if (res[0] != 0)
return (res);
free(res);
return (NULL);
}
char *get_next_line(int fd) char *get_next_line(int fd)
{ {
static char *buf; static char *buf;
char *res; char *res;
ssize_t bytes_read; ssize_t bytes_read;
if (BUFFER_SIZE <= 0 || fd < 0 || fd > 1023)
return (NULL);
res = ft_calloc(1, 1); res = ft_calloc(1, 1);
if (!buf) if (!buf)
buf = ft_calloc(sizeof(char), BUFFER_SIZE + 1); buf = ft_calloc(sizeof(char), BUFFER_SIZE + 1);
@ -56,10 +67,7 @@ char *get_next_line(int fd)
{ {
free(buf); free(buf);
buf = NULL; buf = NULL;
if (res[0] != 0) return (gnl_end_file(res));
return (res);
free(res);
return (NULL);
} }
buf[bytes_read] = 0; buf[bytes_read] = 0;
} }