diff options
Diffstat (limited to 'difftool/sqfsdiff.c')
-rw-r--r-- | difftool/sqfsdiff.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/difftool/sqfsdiff.c b/difftool/sqfsdiff.c deleted file mode 100644 index 2871322..0000000 --- a/difftool/sqfsdiff.c +++ /dev/null @@ -1,168 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * sqfsdiff.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#include "sqfsdiff.h" - -static int open_sfqs(sqfs_state_t *state, const char *path) -{ - int ret; - - state->file = sqfs_open_file(path, SQFS_FILE_OPEN_READ_ONLY); - if (state->file == NULL) { - perror(path); - return -1; - } - - ret = sqfs_super_read(&state->super, state->file); - if (ret) { - sqfs_perror(path, "reading super block", ret); - goto fail_file; - } - - sqfs_compressor_config_init(&state->cfg, state->super.compression_id, - state->super.block_size, - SQFS_COMP_FLAG_UNCOMPRESS); - - ret = sqfs_compressor_create(&state->cfg, &state->cmp); - -#ifdef WITH_LZO - if (state->super.compression_id == SQFS_COMP_LZO && ret != 0) - ret = lzo_compressor_create(&state->cfg, &state->cmp); -#endif - - if (ret != 0) { - sqfs_perror(path, "creating compressor", ret); - goto fail_file; - } - - if (state->super.flags & SQFS_FLAG_COMPRESSOR_OPTIONS) { - ret = state->cmp->read_options(state->cmp, state->file); - if (ret) { - sqfs_perror(path, "reading compressor options", ret); - goto fail_cmp; - } - } - - state->idtbl = sqfs_id_table_create(0); - if (state->idtbl == NULL) { - sqfs_perror(path, "creating ID table", SQFS_ERROR_ALLOC); - goto fail_cmp; - } - - ret = sqfs_id_table_read(state->idtbl, state->file, - &state->super, state->cmp); - if (ret) { - sqfs_perror(path, "loading ID table", ret); - goto fail_id; - } - - state->dr = sqfs_dir_reader_create(&state->super, state->cmp, - state->file); - if (state->dr == NULL) { - sqfs_perror(path, "creating directory reader", - SQFS_ERROR_ALLOC); - goto fail_id; - } - - ret = sqfs_dir_reader_get_full_hierarchy(state->dr, state->idtbl, - NULL, 0, &state->root); - if (ret) { - sqfs_perror(path, "loading filesystem tree", ret); - goto fail_dr; - } - - state->data = sqfs_data_reader_create(state->file, - state->super.block_size, - state->cmp); - if (state->data == NULL) { - sqfs_perror(path, "creating data reader", SQFS_ERROR_ALLOC); - goto fail_tree; - } - - ret = sqfs_data_reader_load_fragment_table(state->data, &state->super); - if (ret) { - sqfs_perror(path, "loading fragment table", ret); - goto fail_data; - } - - return 0; -fail_data: - sqfs_destroy(state->data); -fail_tree: - sqfs_dir_tree_destroy(state->root); -fail_dr: - sqfs_destroy(state->dr); -fail_id: - sqfs_destroy(state->idtbl); -fail_cmp: - sqfs_destroy(state->cmp); -fail_file: - sqfs_destroy(state->file); - return -1; -} - -static void close_sfqs(sqfs_state_t *state) -{ - sqfs_destroy(state->data); - sqfs_dir_tree_destroy(state->root); - sqfs_destroy(state->dr); - sqfs_destroy(state->idtbl); - sqfs_destroy(state->cmp); - sqfs_destroy(state->file); -} - -int main(int argc, char **argv) -{ - int status, ret = 0; - sqfsdiff_t sd; - - memset(&sd, 0, sizeof(sd)); - process_options(&sd, argc, argv); - - if (sd.extract_dir != NULL) { - if (mkdir_p(sd.extract_dir)) - return 2; - } - - if (open_sfqs(&sd.sqfs_old, sd.old_path)) - return 2; - - if (open_sfqs(&sd.sqfs_new, sd.new_path)) { - status = 2; - goto out_sqfs_old; - } - - if (sd.extract_dir != NULL) { - if (chdir(sd.extract_dir)) { - perror(sd.extract_dir); - ret = -1; - goto out; - } - } - - ret = node_compare(&sd, sd.sqfs_old.root, sd.sqfs_new.root); - if (ret != 0) - goto out; - - if (sd.compare_super) { - ret = compare_super_blocks(&sd.sqfs_old.super, - &sd.sqfs_new.super); - if (ret != 0) - goto out; - } -out: - if (ret < 0) { - status = 2; - } else if (ret > 0) { - status = 1; - } else { - status = 0; - } - close_sfqs(&sd.sqfs_new); -out_sqfs_old: - close_sfqs(&sd.sqfs_old); - return status; -} |