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Diffstat (limited to 'lib/sqfs/blk_proc/block.c')
-rw-r--r--lib/sqfs/blk_proc/block.c131
1 files changed, 0 insertions, 131 deletions
diff --git a/lib/sqfs/blk_proc/block.c b/lib/sqfs/blk_proc/block.c
deleted file mode 100644
index 69a7119..0000000
--- a/lib/sqfs/blk_proc/block.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
-/*
- * process_block.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#define SQFS_BUILDING_DLL
-#include "internal.h"
-
-#include <string.h>
-
-static int store_block_location(sqfs_block_processor_t *proc, uint64_t offset,
- uint32_t size, uint32_t chksum)
-{
- size_t new_sz;
- void *new;
-
- if (proc->num_blocks == proc->max_blocks) {
- new_sz = proc->max_blocks * 2;
- new = realloc(proc->blocks, sizeof(proc->blocks[0]) * new_sz);
-
- if (new == NULL)
- return SQFS_ERROR_ALLOC;
-
- proc->blocks = new;
- proc->max_blocks = new_sz;
- }
-
- proc->blocks[proc->num_blocks].offset = offset;
- proc->blocks[proc->num_blocks].hash = MK_BLK_HASH(chksum, size);
- proc->num_blocks += 1;
- return 0;
-}
-
-static size_t deduplicate_blocks(sqfs_block_processor_t *proc, size_t count)
-{
- size_t i, j;
-
- for (i = 0; i < proc->file_start; ++i) {
- for (j = 0; j < count; ++j) {
- if (proc->blocks[i + j].hash !=
- proc->blocks[proc->file_start + j].hash)
- break;
- }
-
- if (j == count)
- break;
- }
-
- return i;
-}
-
-static int allign_file(sqfs_block_processor_t *proc, sqfs_block_t *blk)
-{
- if (!(blk->flags & SQFS_BLK_ALLIGN))
- return 0;
-
- return padd_sqfs(proc->file, proc->file->get_size(proc->file),
- proc->devblksz);
-}
-
-int process_completed_block(sqfs_block_processor_t *proc, sqfs_block_t *blk)
-{
- size_t start, count;
- uint64_t offset;
- uint32_t out;
- int err;
-
- if (blk->flags & SQFS_BLK_FIRST_BLOCK) {
- proc->start = proc->file->get_size(proc->file);
- proc->file_start = proc->num_blocks;
-
- err = allign_file(proc, blk);
- if (err)
- return err;
- }
-
- if (blk->size != 0) {
- out = blk->size;
- if (!(blk->flags & SQFS_BLK_IS_COMPRESSED))
- out |= 1 << 24;
-
- offset = proc->file->get_size(proc->file);
-
- if (blk->flags & SQFS_BLK_FRAGMENT_BLOCK) {
- offset = htole64(offset);
- proc->fragments[blk->index].start_offset = offset;
- proc->fragments[blk->index].pad0 = 0;
- proc->fragments[blk->index].size = htole32(out);
- } else {
- blk->inode->block_sizes[blk->index] = out;
- }
-
- err = store_block_location(proc, offset, out, blk->checksum);
- if (err)
- return err;
-
- err = proc->file->write_at(proc->file, offset,
- blk->data, blk->size);
- if (err)
- return err;
- }
-
- if (blk->flags & SQFS_BLK_LAST_BLOCK) {
- err = allign_file(proc, blk);
- if (err)
- return err;
-
- count = proc->num_blocks - proc->file_start;
- start = deduplicate_blocks(proc, count);
- offset = proc->blocks[start].offset;
-
- sqfs_inode_set_file_block_start(blk->inode, offset);
-
- if (start < proc->file_start) {
- offset = start + count;
-
- if (offset >= proc->file_start) {
- proc->num_blocks = offset;
- } else {
- proc->num_blocks = proc->file_start;
- }
-
- err = proc->file->truncate(proc->file, proc->start);
- if (err)
- return err;
- }
- }
-
- return 0;
-}