478 read_bootsectandvi(boot_sector *bs, volume_info *volinfo, int *fatsize)  in read_bootsectandvi()  argument
500 	memcpy(bs, block, sizeof(boot_sector));  in read_bootsectandvi()
501 	bs->reserved = FAT2CPU16(bs->reserved);  in read_bootsectandvi()
502 	bs->fat_length = FAT2CPU16(bs->fat_length);  in read_bootsectandvi()
503 	bs->secs_track = FAT2CPU16(bs->secs_track);  in read_bootsectandvi()
504 	bs->heads = FAT2CPU16(bs->heads);  in read_bootsectandvi()
505 	bs->total_sect = FAT2CPU32(bs->total_sect);  in read_bootsectandvi()
508 	if (bs->fat_length == 0) {  in read_bootsectandvi()
510 		bs->fat32_length = FAT2CPU32(bs->fat32_length);  in read_bootsectandvi()
511 		bs->flags = FAT2CPU16(bs->flags);  in read_bootsectandvi()
512 		bs->root_cluster = FAT2CPU32(bs->root_cluster);  in read_bootsectandvi()
513 		bs->info_sector = FAT2CPU16(bs->info_sector);  in read_bootsectandvi()
514 		bs->backup_boot = FAT2CPU16(bs->backup_boot);  in read_bootsectandvi()
518 		vistart = (volume_info *)&(bs->fat32_length);  in read_bootsectandvi()
547 	boot_sector bs;  in get_fs_info()  local
551 	ret = read_bootsectandvi(&bs, &volinfo, &mydata->fatsize);  in get_fs_info()
558 		mydata->fatlength = bs.fat32_length;  in get_fs_info()
559 		mydata->total_sect = bs.total_sect;  in get_fs_info()
561 		mydata->fatlength = bs.fat_length;  in get_fs_info()
562 		mydata->total_sect = (bs.sectors[1] << 8) + bs.sectors[0];  in get_fs_info()
564 			mydata->total_sect = bs.total_sect;  in get_fs_info()
569 	mydata->fats = bs.fats;  in get_fs_info()
570 	mydata->fat_sect = bs.reserved;  in get_fs_info()
572 	mydata->rootdir_sect = mydata->fat_sect + mydata->fatlength * bs.fats;  in get_fs_info()
574 	mydata->sect_size = (bs.sector_size[1] << 8) + bs.sector_size[0];  in get_fs_info()
575 	mydata->clust_size = bs.cluster_size;  in get_fs_info()
596 		mydata->root_cluster = bs.root_cluster;  in get_fs_info()
598 		mydata->rootdir_size = ((bs.dir_entries[1]  * (int)256 +  in get_fs_info()
599 					 bs.dir_entries[0]) *  in get_fs_info()
1016 	boot_sector bs;  in file_fat_detectfs()  local
1062 	if (read_bootsectandvi(&bs, &volinfo, &fatsize)) {  in file_fat_detectfs()