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-rw-r--r--lib/common/writer.c329
1 files changed, 0 insertions, 329 deletions
diff --git a/lib/common/writer.c b/lib/common/writer.c
deleted file mode 100644
index 9032a99..0000000
--- a/lib/common/writer.c
+++ /dev/null
@@ -1,329 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * writer.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "common.h"
-
-#include <string.h>
-#include <stdlib.h>
-
-#ifdef HAVE_SYS_SYSINFO_H
-#include <sys/sysinfo.h>
-
-static size_t os_get_num_jobs(void)
-{
- int nprocs;
-
- nprocs = get_nprocs_conf();
- return nprocs < 1 ? 1 : nprocs;
-}
-#else
-static size_t os_get_num_jobs(void)
-{
- return 1;
-}
-#endif
-
-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;
-}
-
-void sqfs_writer_cfg_init(sqfs_writer_cfg_t *cfg)
-{
- memset(cfg, 0, sizeof(*cfg));
-
- cfg->num_jobs = os_get_num_jobs();
- cfg->block_size = SQFS_DEFAULT_BLOCK_SIZE;
- cfg->devblksize = SQFS_DEVBLK_SIZE;
- cfg->comp_id = compressor_get_default();
-}
-
-int sqfs_writer_init(sqfs_writer_t *sqfs, const sqfs_writer_cfg_t *wrcfg)
-{
- sqfs_compressor_config_t cfg;
- int ret, flags;
-
- sqfs->filename = wrcfg->filename;
-
- if (compressor_cfg_init_options(&cfg, wrcfg->comp_id,
- wrcfg->block_size,
- wrcfg->comp_extra)) {
- return -1;
- }
-
- sqfs->outfile = sqfs_open_file(wrcfg->filename, wrcfg->outmode);
- if (sqfs->outfile == NULL) {
- perror(wrcfg->filename);
- return -1;
- }
-
- if (fstree_init(&sqfs->fs, wrcfg->fs_defaults))
- goto fail_file;
-
- ret = sqfs_compressor_create(&cfg, &sqfs->cmp);
-
-#ifdef WITH_LZO
- if (cfg.id == SQFS_COMP_LZO) {
- if (sqfs->cmp != NULL)
- sqfs_destroy(sqfs->cmp);
-
- ret = lzo_compressor_create(&cfg, &sqfs->cmp);
- }
-#endif
-
- if (ret != 0) {
- sqfs_perror(wrcfg->filename, "creating compressor", ret);
- goto fail_fs;
- }
-
- ret = sqfs_super_init(&sqfs->super, wrcfg->block_size,
- sqfs->fs.defaults.st_mtime, wrcfg->comp_id);
- if (ret) {
- sqfs_perror(wrcfg->filename, "initializing super block", ret);
- goto fail_cmp;
- }
-
- ret = sqfs_super_write(&sqfs->super, sqfs->outfile);
- if (ret) {
- sqfs_perror(wrcfg->filename, "writing super block", ret);
- goto fail_cmp;
- }
-
- ret = sqfs->cmp->write_options(sqfs->cmp, sqfs->outfile);
- if (ret < 0) {
- sqfs_perror(wrcfg->filename, "writing compressor options", ret);
- goto fail_cmp;
- }
-
- if (ret > 0)
- sqfs->super.flags |= SQFS_FLAG_COMPRESSOR_OPTIONS;
-
- sqfs->blkwr = sqfs_block_writer_create(sqfs->outfile,
- wrcfg->devblksize, 0);
- if (sqfs->blkwr == NULL) {
- perror("creating block writer");
- goto fail_cmp;
- }
-
- sqfs->fragtbl = sqfs_frag_table_create(0);
- if (sqfs->fragtbl == NULL) {
- perror("creating fragment table");
- goto fail_blkwr;
- }
-
- sqfs->data = sqfs_block_processor_create(sqfs->super.block_size,
- sqfs->cmp, wrcfg->num_jobs,
- wrcfg->max_backlog,
- sqfs->blkwr, sqfs->fragtbl);
- if (sqfs->data == NULL) {
- perror("creating data block processor");
- goto fail_fragtbl;
- }
-
- sqfs->idtbl = sqfs_id_table_create(0);
- if (sqfs->idtbl == NULL) {
- sqfs_perror(wrcfg->filename, "creating ID table",
- SQFS_ERROR_ALLOC);
- goto fail_data;
- }
-
- if (!wrcfg->no_xattr) {
- sqfs->xwr = sqfs_xattr_writer_create(0);
-
- if (sqfs->xwr == NULL) {
- sqfs_perror(wrcfg->filename, "creating xattr writer",
- SQFS_ERROR_ALLOC);
- goto fail_id;
- }
- }
-
- sqfs->im = sqfs_meta_writer_create(sqfs->outfile, sqfs->cmp, 0);
- if (sqfs->im == NULL) {
- fputs("Error creating inode meta data writer.\n", stderr);
- goto fail_xwr;
- }
-
- sqfs->dm = sqfs_meta_writer_create(sqfs->outfile, sqfs->cmp,
- SQFS_META_WRITER_KEEP_IN_MEMORY);
- if (sqfs->dm == NULL) {
- fputs("Error creating directory meta data writer.\n", stderr);
- goto fail_im;
- }
-
- flags = 0;
- if (wrcfg->exportable)
- flags |= SQFS_DIR_WRITER_CREATE_EXPORT_TABLE;
-
- sqfs->dirwr = sqfs_dir_writer_create(sqfs->dm, flags);
- if (sqfs->dirwr == NULL) {
- fputs("Error creating directory table writer.\n", stderr);
- goto fail_dm;
- }
-
- return 0;
-fail_dm:
- sqfs_destroy(sqfs->dm);
-fail_im:
- sqfs_destroy(sqfs->im);
-fail_xwr:
- if (sqfs->xwr != NULL)
- sqfs_destroy(sqfs->xwr);
-fail_id:
- sqfs_destroy(sqfs->idtbl);
-fail_data:
- sqfs_destroy(sqfs->data);
-fail_fragtbl:
- sqfs_destroy(sqfs->fragtbl);
-fail_blkwr:
- sqfs_destroy(sqfs->blkwr);
-fail_cmp:
- sqfs_destroy(sqfs->cmp);
-fail_fs:
- fstree_cleanup(&sqfs->fs);
-fail_file:
- sqfs_destroy(sqfs->outfile);
- return -1;
-}
-
-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)
- sqfs_print_statistics(&sqfs->super, sqfs->data, sqfs->blkwr);
-
- return 0;
-}
-
-void sqfs_writer_cleanup(sqfs_writer_t *sqfs, int status)
-{
- if (sqfs->xwr != NULL)
- sqfs_destroy(sqfs->xwr);
-
- sqfs_destroy(sqfs->dirwr);
- sqfs_destroy(sqfs->dm);
- sqfs_destroy(sqfs->im);
- sqfs_destroy(sqfs->idtbl);
- sqfs_destroy(sqfs->data);
- sqfs_destroy(sqfs->blkwr);
- sqfs_destroy(sqfs->fragtbl);
- sqfs_destroy(sqfs->cmp);
- fstree_cleanup(&sqfs->fs);
- sqfs_destroy(sqfs->outfile);
-
- if (status != EXIT_SUCCESS) {
-#if defined(_WIN32) || defined(__WINDOWS__)
- WCHAR *path = path_to_windows(sqfs->filename);
-
- if (path != NULL)
- DeleteFileW(path);
-
- free(path);
-#else
- unlink(sqfs->filename);
-#endif
- }
-}
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