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-rw-r--r--lib/sqfshelper/Makemodule.am5
-rw-r--r--lib/sqfshelper/deserialize_fstree.c179
-rw-r--r--lib/sqfshelper/sqfs_reader.c73
-rw-r--r--lib/sqfshelper/tree_node_from_inode.c141
4 files changed, 1 insertions, 397 deletions
diff --git a/lib/sqfshelper/Makemodule.am b/lib/sqfshelper/Makemodule.am
index 5078f69..e155fa6 100644
--- a/lib/sqfshelper/Makemodule.am
+++ b/lib/sqfshelper/Makemodule.am
@@ -1,8 +1,5 @@
-libsqfshelper_a_SOURCES = lib/sqfshelper/deserialize_fstree.c
-libsqfshelper_a_SOURCES += lib/sqfshelper/serialize_fstree.c
+libsqfshelper_a_SOURCES = lib/sqfshelper/serialize_fstree.c
libsqfshelper_a_SOURCES += lib/sqfshelper/statistics.c
-libsqfshelper_a_SOURCES += lib/sqfshelper/tree_node_from_inode.c
-libsqfshelper_a_SOURCES += lib/sqfshelper/sqfs_reader.c
libsqfshelper_a_SOURCES += lib/sqfshelper/tree_node_to_inode.c
libsqfshelper_a_SOURCES += lib/sqfshelper/write_export_table.c
libsqfshelper_a_SOURCES += lib/sqfshelper/print_version.c
diff --git a/lib/sqfshelper/deserialize_fstree.c b/lib/sqfshelper/deserialize_fstree.c
deleted file mode 100644
index 411711b..0000000
--- a/lib/sqfshelper/deserialize_fstree.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * deserialize_fstree.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-
-#include "sqfs/meta_reader.h"
-#include "sqfs/dir.h"
-
-#include "highlevel.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-
-static bool node_would_be_own_parent(tree_node_t *root, tree_node_t *n)
-{
- while (root != NULL) {
- if (root->inode_num == n->inode_num)
- return true;
-
- root = root->parent;
- }
-
- return false;
-}
-
-static bool is_name_sane(const char *name)
-{
- if (strchr(name, '/') != NULL || strchr(name, '\\') != NULL)
- goto fail;
-
- if (strcmp(name, "..") == 0 || strcmp(name, ".") == 0)
- goto fail;
-
- return true;
-fail:
- fprintf(stderr, "WARNING: Found directory entry named '%s', "
- "skipping\n", name);
- return false;
-}
-
-static int fill_dir(sqfs_dir_reader_t *dr,
- tree_node_t *root, sqfs_id_table_t *idtbl,
- fstree_t *fs)
-{
- sqfs_inode_generic_t *inode;
- sqfs_dir_entry_t *ent;
- tree_node_t *n;
- int err;
-
- for (;;) {
- err = sqfs_dir_reader_read(dr, &ent);
- if (err > 0)
- break;
- if (err < 0)
- return -1;
-
- if (!is_name_sane((const char *)ent->name)) {
- free(ent);
- continue;
- }
-
- err = sqfs_dir_reader_get_inode(dr, &inode);
- if (err) {
- free(ent);
- return err;
- }
-
- n = tree_node_from_inode(inode, idtbl, (char *)ent->name);
- if (n == NULL) {
- free(ent);
- free(inode);
- return -1;
- }
-
- if (node_would_be_own_parent(root, n)) {
- fputs("WARNING: Found a directory that "
- "contains itself, skipping loop back "
- "reference!\n", stderr);
- free(n);
- free(ent);
- free(inode);
- continue;
- }
-
- free(ent);
-
- n->inode = inode;
- n->parent = root;
- n->next = root->data.dir->children;
- root->data.dir->children = n;
- }
-
- for (n = root->data.dir->children; n != NULL; n = n->next) {
- if (S_ISDIR(n->mode)) {
- err = sqfs_dir_reader_open_dir(dr, n->inode);
- if (err)
- return -1;
-
- if (fill_dir(dr, n, idtbl, fs))
- return -1;
- }
-
- free(n->inode);
- n->inode = NULL;
- }
-
- return 0;
-}
-
-int deserialize_fstree(fstree_t *out, sqfs_super_t *super,
- sqfs_compressor_t *cmp, sqfs_file_t *file)
-{
- sqfs_inode_generic_t *root;
- sqfs_id_table_t *idtbl;
- sqfs_dir_reader_t *dr;
- int status = -1;
-
- dr = sqfs_dir_reader_create(super, cmp, file);
- if (dr == NULL)
- return -1;
-
- idtbl = sqfs_id_table_create();
- if (idtbl == NULL)
- goto out_dr;
-
- if (sqfs_id_table_read(idtbl, file, super, cmp))
- goto out_id;
-
- if (sqfs_dir_reader_get_root_inode(dr, &root))
- goto out_id;
-
- if (root->base.type != SQFS_INODE_DIR &&
- root->base.type != SQFS_INODE_EXT_DIR) {
- free(root);
- fputs("File system root inode is not a directory inode!\n",
- stderr);
- goto out_id;
- }
-
- memset(out, 0, sizeof(*out));
- out->block_size = super->block_size;
- out->defaults.st_uid = 0;
- out->defaults.st_gid = 0;
- out->defaults.st_mode = 0755;
- out->defaults.st_mtime = super->modification_time;
-
- out->root = tree_node_from_inode(root, idtbl, "");
-
- if (out->root == NULL) {
- free(root);
- goto out_id;
- }
-
- if (sqfs_dir_reader_open_dir(dr, root)) {
- free(root);
- goto fail_fs;
- }
-
- free(root);
-
- if (fill_dir(dr, out->root, idtbl, out))
- goto fail_fs;
-
- tree_node_sort_recursive(out->root);
-
- status = 0;
-out_id:
- sqfs_id_table_destroy(idtbl);
-out_dr:
- sqfs_dir_reader_destroy(dr);
- return status;
-fail_fs:
- fstree_cleanup(out);
- goto out_id;
-}
diff --git a/lib/sqfshelper/sqfs_reader.c b/lib/sqfshelper/sqfs_reader.c
deleted file mode 100644
index b947cf7..0000000
--- a/lib/sqfshelper/sqfs_reader.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * sqfs_reader.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-
-#include "highlevel.h"
-
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-int sqfs_reader_open(sqfs_reader_t *rd, const char *filename)
-{
- sqfs_compressor_config_t cfg;
-
- memset(rd, 0, sizeof(*rd));
-
- rd->file = sqfs_open_file(filename, SQFS_FILE_OPEN_READ_ONLY);
- if (rd->file == NULL)
- return -1;
-
- if (sqfs_super_read(&rd->super, rd->file))
- goto fail_fd;
-
- if (!sqfs_compressor_exists(rd->super.compression_id)) {
- fprintf(stderr, "%s: unknown compressor used.\n", filename);
- goto fail_fd;
- }
-
- sqfs_compressor_config_init(&cfg, rd->super.compression_id,
- rd->super.block_size,
- SQFS_COMP_FLAG_UNCOMPRESS);
-
- rd->cmp = sqfs_compressor_create(&cfg);
- if (rd->cmp == NULL)
- goto fail_fd;
-
- if (rd->super.flags & SQFS_FLAG_COMPRESSOR_OPTIONS) {
- if (rd->cmp->read_options(rd->cmp, rd->file))
- goto fail_cmp;
- }
-
- if (deserialize_fstree(&rd->fs, &rd->super, rd->cmp, rd->file))
- goto fail_cmp;
-
- fstree_gen_file_list(&rd->fs);
-
- rd->data = data_reader_create(rd->file, &rd->super, rd->cmp);
- if (rd->data == NULL)
- goto fail_fs;
-
- return 0;
-fail_fs:
- fstree_cleanup(&rd->fs);
-fail_cmp:
- rd->cmp->destroy(rd->cmp);
-fail_fd:
- rd->file->destroy(rd->file);
- memset(rd, 0, sizeof(*rd));
- return -1;
-}
-
-void sqfs_reader_close(sqfs_reader_t *rd)
-{
- data_reader_destroy(rd->data);
- fstree_cleanup(&rd->fs);
- rd->cmp->destroy(rd->cmp);
- rd->file->destroy(rd->file);
- memset(rd, 0, sizeof(*rd));
-}
diff --git a/lib/sqfshelper/tree_node_from_inode.c b/lib/sqfshelper/tree_node_from_inode.c
deleted file mode 100644
index 3ada722..0000000
--- a/lib/sqfshelper/tree_node_from_inode.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * tree_node_from_inode.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "config.h"
-
-#include "highlevel.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-
-static size_t compute_size(sqfs_inode_generic_t *inode, const char *name)
-{
- size_t size = sizeof(tree_node_t) + strlen(name) + 1;
-
- switch (inode->base.type) {
- case SQFS_INODE_DIR:
- case SQFS_INODE_EXT_DIR:
- size += sizeof(dir_info_t);
- break;
- case SQFS_INODE_FILE:
- case SQFS_INODE_EXT_FILE:
- size += sizeof(file_info_t);
- size += inode->num_file_blocks *
- sizeof(((file_info_t *)0)->block_size[0]);
- break;
- case SQFS_INODE_SLINK:
- case SQFS_INODE_EXT_SLINK:
- size += strlen(inode->slink_target) + 1;
- break;
- default:
- break;
- }
-
- return size;
-}
-
-static void copy_block_sizes(sqfs_inode_generic_t *inode, tree_node_t *out)
-{
- size_t i;
-
- out->name += inode->num_file_blocks *
- sizeof(out->data.file->block_size[0]);
-
- for (i = 0; i < inode->num_file_blocks; ++i)
- out->data.file->block_size[i] = inode->block_sizes[i];
-}
-
-tree_node_t *tree_node_from_inode(sqfs_inode_generic_t *inode,
- const sqfs_id_table_t *idtbl,
- const char *name)
-{
- tree_node_t *out;
-
- out = calloc(1, compute_size(inode, name));
- if (out == NULL) {
- perror("converting inode to fs tree node");
- return NULL;
- }
-
- if (sqfs_id_table_index_to_id(idtbl, inode->base.uid_idx, &out->uid)) {
- free(out);
- return NULL;
- }
-
- if (sqfs_id_table_index_to_id(idtbl, inode->base.gid_idx, &out->gid)) {
- free(out);
- return NULL;
- }
-
- out->mode = inode->base.mode;
- out->inode_num = inode->base.inode_number;
- out->mod_time = inode->base.mod_time;
- out->name = (char *)out->payload;
-
- switch (inode->base.type) {
- case SQFS_INODE_DIR:
- out->data.dir = (dir_info_t *)out->payload;
- out->name += sizeof(dir_info_t);
-
- out->data.dir->size = inode->data.dir.size;
- break;
- case SQFS_INODE_EXT_DIR:
- out->data.dir = (dir_info_t *)out->payload;
- out->name += sizeof(dir_info_t);
-
- out->data.dir->size = inode->data.dir_ext.size;
- break;
- case SQFS_INODE_FILE:
- out->data.file = (file_info_t *)out->payload;
- out->name += sizeof(file_info_t);
-
- out->data.file->size = inode->data.file.file_size;
- out->data.file->startblock = inode->data.file.blocks_start;
- out->data.file->fragment = inode->data.file.fragment_index;
- out->data.file->fragment_offset =
- inode->data.file.fragment_offset;
-
- copy_block_sizes(inode, out);
- break;
- case SQFS_INODE_EXT_FILE:
- out->data.file = (file_info_t *)out->payload;
- out->name += sizeof(file_info_t);
-
- out->data.file->size = inode->data.file_ext.file_size;
- out->data.file->sparse = inode->data.file_ext.sparse;
- out->data.file->startblock = inode->data.file_ext.blocks_start;
- out->data.file->fragment = inode->data.file_ext.fragment_idx;
- out->data.file->fragment_offset =
- inode->data.file_ext.fragment_offset;
-
- copy_block_sizes(inode, out);
- break;
- case SQFS_INODE_SLINK:
- case SQFS_INODE_EXT_SLINK:
- out->data.slink_target = (char *)out->payload;
- strcpy(out->data.slink_target, inode->slink_target);
-
- out->name = (char *)out->payload +
- strlen(inode->slink_target) + 1;
- break;
- case SQFS_INODE_BDEV:
- case SQFS_INODE_CDEV:
- out->name = (char *)out->payload;
- out->data.devno = inode->data.dev.devno;
- break;
- case SQFS_INODE_EXT_BDEV:
- case SQFS_INODE_EXT_CDEV:
- out->name = (char *)out->payload;
- out->data.devno = inode->data.dev_ext.devno;
- break;
- default:
- break;
- }
-
- strcpy(out->name, name);
- return out;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 08:04:52 +0000