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so_long/get_map.c
2024-01-24 13:45:01 +01:00

83 lines
1.9 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* get_map.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: adjoly <adjoly@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/01/08 13:13:18 by adjoly #+# #+# */
/* Updated: 2024/01/23 11:45:20 by adjoly ### ########.fr */
/* */
/* ************************************************************************** */
#include "printf/ft_printf.h"
#include "so_long.h"
#include <stddef.h>
size_t ft_filesize(char *file_name)
{
size_t i;
int fd;
ssize_t rd;
char *buf;
fd = open(file_name, O_RDONLY);
buf = ft_calloc(1, 1);
if (!buf)
return (0);
i = 0;
while (buf && i < SIZE_MAX)
{
rd = read(fd, buf, 1);
if (rd <= 0)
break ;
i++;
}
free(buf);
close(fd);
return (i);
}
char **ft_getmap(int fd, char **map_read, char *buf, char *tmp)
{
ssize_t rd;
size_t i;
i = 0;
while (buf && i < SIZE_MAX)
{
rd = read(fd, buf, 1);
if (rd <= 0)
break ;
tmp[i] = buf[0];
i++;
}
close(fd);
tmp[i] = '\0';
map_read = ft_split(tmp, '\n');
return (map_read);
}
char **ft_read_map(char *file_name, char **map_read)
{
int fd;
char *tmp;
char *buf;
size_t filesize;
filesize = ft_filesize(file_name);
if (filesize == 0)
return (NULL);
tmp = ft_calloc(filesize + 1, 1);
if (!tmp)
return (NULL);
buf = ft_calloc(1, 1);
if (!buf)
return (NULL);
fd = open(file_name, O_RDONLY);
map_read = ft_getmap(fd, map_read, buf, tmp);
free(buf);
free(tmp);
return (map_read);
}