EMILE/libmap/map_open.c
2007-10-09 19:02:42 +00:00

51 lines
880 B
C

/*
*
* (c) 2004-2007 Laurent Vivier <Laurent@lvivier.info>
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include "libmap.h"
map_t* map_open(device_io_t *device)
{
map_t *map;
int ret;
ASSERT_DD(printf("INTERNAL ERROR: Bad Block 0 size structure\n");
return NULL;)
ASSERT_P(printf("INTERNAL ERROR: Bad Partition size structure\n");
return NULL;)
map = (map_t*)malloc(sizeof(map_t));
if (map == NULL)
return NULL;
map->device = device;
ret = device->read_sector(map->device, 0,
&map->drivers, sizeof(map->drivers));
if (ret == -1)
{
free(map);
return NULL;
}
ret = device->read_sector(map->device, sizeof(map->drivers),
&map->partition, sizeof(map->partition));
if (ret == -1)
{
free(map);
return NULL;
}
map->current = 0;
return map;
}