diff options
Diffstat (limited to 'lib/sqfs/data_writer')
| -rw-r--r-- | lib/sqfs/data_writer/block.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/lib/sqfs/data_writer/block.c b/lib/sqfs/data_writer/block.c index 5dce26c..7c52bb4 100644 --- a/lib/sqfs/data_writer/block.c +++ b/lib/sqfs/data_writer/block.c @@ -52,11 +52,32 @@ static size_t deduplicate_blocks(sqfs_data_writer_t *proc, size_t count) static int allign_file(sqfs_data_writer_t *proc, sqfs_block_t *blk) { + sqfs_u32 chksum; + void *padding; + sqfs_u64 size; + size_t diff; + int ret; + if (!(blk->flags & SQFS_BLK_ALLIGN)) return 0; - return padd_sqfs(proc->file, proc->file->get_size(proc->file), - proc->devblksz); + size = proc->file->get_size(proc->file); + diff = size % proc->devblksz; + if (diff == 0) + return 0; + + padding = calloc(1, diff); + if (padding == 0) + return SQFS_ERROR_ALLOC; + + chksum = crc32(0, padding, diff); + + ret = proc->file->write_at(proc->file, size, padding, diff); + free(padding); + if (ret) + return ret; + + return store_block_location(proc, size, diff | (1 << 24), chksum); } int process_completed_block(sqfs_data_writer_t *proc, sqfs_block_t *blk) |