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src/exfat_dir.c: exFAT cluster number is using 32 bits, fix EOC detection

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This commit is contained in:
Christophe Grenier 2014-03-21 08:47:33 +01:00
parent 3012b0fc19
commit bb43d90c9d
1 changed files with 20 additions and 5 deletions
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25
src/exfat_dir.c
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@ -96,12 +96,11 @@ static unsigned int exfat_get_next_cluster(disk_t *disk_car,const partition_t *p
free(buffer);
return 0;
}
/* FAT32 used 28 bits, the 4 high bits are reserved
* 0x00000000: free cluster
* 0x0FFFFFF7: bad cluster
* 0x0FFFFFF8+: EOC End of cluster
/* 0x00000000: free cluster
* 0xFFFFFFF7: bad cluster
* 0xFFFFFFFF: EOC End of cluster
* */
next_cluster=le32(p32[offset_o])&0xFFFFFFF;
next_cluster=le32(p32[offset_o]);
free(buffer);
return next_cluster;
}
@ -276,6 +275,22 @@ dir_partition_t dir_partition_exfat_init(disk_t *disk, const partition_t *partit
{
log_error("dir_partition_exfat_init: iconv_open failed\n");
}
#endif
#ifdef DEBUG_EXFAT
log_info("start_sector=%llu\n", (long long unsigned)le64(exfat_header->start_sector));
log_info("nr_sectors =%llu\n", (long long unsigned)le64(exfat_header->nr_sectors));
log_info("fat_blocknr =%u\n",le32(exfat_header->fat_blocknr));
log_info("fat_block_counts=%u\n", le32(exfat_header->fat_block_counts));
log_info("clus_blocknr=%u\n", le32(exfat_header->clus_blocknr));
log_info("total_clusters=%u\n", le32(exfat_header->total_clusters));
log_info("rootdir_clusnr=%u\n", le32(exfat_header->rootdir_clusnr));
log_info("serial_number=0x%08x\n", le32(exfat_header->serial_number));
log_info("state=0x%x\n", le16(exfat_header->state));
log_info("blocksize_bits=%u\n", exfat_header->blocksize_bits);
log_info("block_per_clus_bits=%u\n", exfat_header->block_per_clus_bits);
log_info("number_of_fats=%u\n", exfat_header->number_of_fats);
log_info("drive_select=0x%x\n", exfat_header->drive_select);
log_info("allocated_percent=%u\n", exfat_header->allocated_percent);
#endif
strncpy(dir_data->current_directory,"/",sizeof(dir_data->current_directory));
dir_data->current_inode=0;