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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* finish.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "simple_writer.h"
#include "common.h"
#include <stdlib.h>
static void print_statistics(const sqfs_super_t *super,
const sqfs_block_processor_t *blk,
const sqfs_block_writer_t *wr)
{
const sqfs_block_processor_stats_t *proc_stats;
sqfs_u64 bytes_written, blocks_written;
char read_sz[32], written_sz[32];
size_t ratio;
proc_stats = sqfs_block_processor_get_stats(blk);
blocks_written = wr->get_block_count(wr);
bytes_written = super->inode_table_start - sizeof(*super);
if (proc_stats->input_bytes_read > 0) {
ratio = (100 * bytes_written) / proc_stats->input_bytes_read;
} else {
ratio = 100;
}
print_size(proc_stats->input_bytes_read, read_sz, false);
print_size(bytes_written, written_sz, false);
fputs("---------------------------------------------------\n", stdout);
printf("Data bytes read: %s\n", read_sz);
printf("Data bytes written: %s\n", written_sz);
printf("Data compression ratio: " PRI_SZ "%%\n", ratio);
fputc('\n', stdout);
printf("Data blocks written: " PRI_U64 "\n", blocks_written);
printf("Out of which were fragment blocks: " PRI_U64 "\n",
proc_stats->frag_block_count);
printf("Duplicate blocks omitted: " PRI_U64 "\n",
proc_stats->data_block_count + proc_stats->frag_block_count -
blocks_written);
printf("Sparse blocks omitted: " PRI_U64 "\n",
proc_stats->sparse_block_count);
fputc('\n', stdout);
printf("Fragments actually written: " PRI_U64 "\n",
proc_stats->actual_frag_count);
printf("Duplicated fragments omitted: " PRI_U64 "\n",
proc_stats->total_frag_count - proc_stats->actual_frag_count);
printf("Total number of inodes: %u\n", super->inode_count);
printf("Number of unique group/user IDs: %u\n", super->id_count);
fputc('\n', stdout);
}
static int padd_sqfs(sqfs_file_t *file, sqfs_u64 size, size_t blocksize)
{
size_t padd_sz = size % blocksize;
int status = -1;
sqfs_u8 *buffer;
if (padd_sz == 0)
return 0;
padd_sz = blocksize - padd_sz;
buffer = calloc(1, padd_sz);
if (buffer == NULL)
goto fail_errno;
if (file->write_at(file, file->get_size(file),
buffer, padd_sz)) {
goto fail_errno;
}
status = 0;
out:
free(buffer);
return status;
fail_errno:
perror("padding output file to block size");
goto out;
}
int sqfs_writer_finish(sqfs_writer_t *sqfs, const sqfs_writer_cfg_t *cfg)
{
int ret;
if (!cfg->quiet)
fputs("Waiting for remaining data blocks...\n", stdout);
ret = sqfs_block_processor_finish(sqfs->data);
if (ret) {
sqfs_perror(cfg->filename, "finishing data blocks", ret);
return -1;
}
if (!cfg->quiet)
fputs("Writing inodes and directories...\n", stdout);
sqfs->super.inode_count = sqfs->fs.unique_inode_count;
if (sqfs_serialize_fstree(cfg->filename, sqfs))
return -1;
if (!cfg->quiet)
fputs("Writing fragment table...\n", stdout);
ret = sqfs_frag_table_write(sqfs->fragtbl, sqfs->outfile,
&sqfs->super, sqfs->cmp);
if (ret) {
sqfs_perror(cfg->filename, "writing fragment table", ret);
return -1;
}
if (cfg->exportable) {
if (!cfg->quiet)
fputs("Writing export table...\n", stdout);
ret = sqfs_dir_writer_write_export_table(sqfs->dirwr,
sqfs->outfile, sqfs->cmp,
sqfs->fs.root->inode_num,
sqfs->fs.root->inode_ref,
&sqfs->super);
if (ret)
return -1;
}
if (!cfg->quiet)
fputs("Writing ID table...\n", stdout);
ret = sqfs_id_table_write(sqfs->idtbl, sqfs->outfile,
&sqfs->super, sqfs->cmp);
if (ret) {
sqfs_perror(cfg->filename, "writing ID table", ret);
return -1;
}
if (!cfg->no_xattr) {
if (!cfg->quiet)
fputs("Writing extended attributes...\n", stdout);
ret = sqfs_xattr_writer_flush(sqfs->xwr, sqfs->outfile,
&sqfs->super, sqfs->cmp);
if (ret) {
sqfs_perror(cfg->filename,
"writing extended attributes", ret);
return -1;
}
}
sqfs->super.bytes_used = sqfs->outfile->get_size(sqfs->outfile);
ret = sqfs_super_write(&sqfs->super, sqfs->outfile);
if (ret) {
sqfs_perror(cfg->filename, "updating super block", ret);
return -1;
}
if (padd_sqfs(sqfs->outfile, sqfs->super.bytes_used,
cfg->devblksize)) {
return -1;
}
if (!cfg->quiet)
print_statistics(&sqfs->super, sqfs->data, sqfs->blkwr);
return 0;
}
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