EMILE/libmap/map_partition_read.c

/*
 *
 * (c) 2004-2007 Laurent Vivier <Laurent@lvivier.info>
 *
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>

#include "libmap.h"

int map_partition_read(map_t* map, off_t block, size_t nb, char* sector)
{
	off_t offset;
	int ret;

	if (!map_partition_is_valid(map))
		return -1;

	offset = read_long((u_int32_t*)&map->partition.PyPartStart + block)
			* FLOPPY_SECTOR_SIZE;

	ret = map->device->read_sector(map->device, 
				       offset, sector,
				       nb * FLOPPY_SECTOR_SIZE);

	return ret;
}