get_next_line/get_next_line.c

94 lines
2.3 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_next_line.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: gbrochar <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2016/03/22 00:00:51 by gbrochar #+# #+# */
/* Updated: 2019/02/22 10:11:53 by gbrochar ### ########.fr */
/* */
/* ************************************************************************** */
#include "get_next_line.h"
char *ft_strjoin2(char *str, char *str2)
{
char *tmp;
tmp = ft_strjoin(str, str2);
free(str);
return (tmp);
}
int gnl_manage_return(char **line, char **stock)
{
char *tmp;
char *tmp2;
if ((tmp = ft_strchr(*stock, '\n')))
{
*tmp = '\0';
tmp2 = ft_strdup(tmp + 1);
*line = ft_strdup(*stock);
ft_memdel((void **)stock);
*stock = ft_strdup(tmp2);
free(tmp2);
tmp2 = NULL;
tmp = NULL;
return (1);
}
if (ft_strlen(*stock) == 0)
{
ft_memdel((void **)stock);
return (0);
}
*line = ft_strdup(*stock);
ft_memdel((void **)stock);
return (1);
}
int gnl_manage_read(char **line, char **stock)
{
char *tmp;
char *tmp2;
if ((tmp = ft_strchr(*stock, '\n')))
{
*tmp = '\0';
tmp2 = ft_strdup(tmp + 1);
*line = ft_strdup(*stock);
ft_memdel((void **)stock);
*stock = ft_strdup(tmp2);
free(tmp2);
tmp2 = NULL;
tmp = NULL;
return (1);
}
return (0);
}
int get_next_line(int fd, char **line, int error)
{
static char *stock = NULL;
char buffer[BUFF_SIZE + 1];
int ret;
if (stock && error)
ft_memdel((void **)&stock);
if (error)
return (-1);
buffer[0] = '\0';
if (stock)
if (gnl_manage_read(line, &stock))
return (1);
while ((ret = read(fd, buffer, BUFF_SIZE)) > 0)
{
buffer[ret] = '\0';
stock = ft_strjoin2(stock, buffer);
if (gnl_manage_read(line, &stock))
return (1);
}
return (ret < 0 ? ret : gnl_manage_return(line, &stock));
}