diff options
Diffstat (limited to 'lib/sqfshelper/serialize_fstree.c')
| -rw-r--r-- | lib/sqfshelper/serialize_fstree.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/lib/sqfshelper/serialize_fstree.c b/lib/sqfshelper/serialize_fstree.c deleted file mode 100644 index 14f0a42..0000000 --- a/lib/sqfshelper/serialize_fstree.c +++ /dev/null @@ -1,220 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * serialize_fstree.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#include "common.h" - -#include <assert.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> -#include <stdio.h> - -static sqfs_inode_generic_t *tree_node_to_inode(tree_node_t *node) -{ - sqfs_inode_generic_t *inode; - size_t extra = 0; - - if (S_ISLNK(node->mode)) - extra = strlen(node->data.slink_target); - - inode = alloc_flex(sizeof(*inode), 1, extra); - if (inode == NULL) { - perror("creating inode"); - return NULL; - } - - switch (node->mode & S_IFMT) { - case S_IFSOCK: - inode->base.type = SQFS_INODE_SOCKET; - inode->data.ipc.nlink = 1; - break; - case S_IFIFO: - inode->base.type = SQFS_INODE_FIFO; - inode->data.ipc.nlink = 1; - break; - case S_IFLNK: - inode->base.type = SQFS_INODE_SLINK; - inode->data.slink.nlink = 1; - inode->data.slink.target_size = extra; - inode->slink_target = (char *)inode->extra; - memcpy(inode->extra, node->data.slink_target, extra); - break; - case S_IFBLK: - inode->base.type = SQFS_INODE_BDEV; - inode->data.dev.nlink = 1; - inode->data.dev.devno = node->data.devno; - break; - case S_IFCHR: - inode->base.type = SQFS_INODE_CDEV; - inode->data.dev.nlink = 1; - inode->data.dev.devno = node->data.devno; - break; - default: - assert(0); - } - - return inode; -} - -static sqfs_inode_generic_t *write_dir_entries(const char *filename, - sqfs_dir_writer_t *dirw, - tree_node_t *node) -{ - sqfs_u32 xattr, parent_inode; - sqfs_inode_generic_t *inode; - tree_node_t *it; - int ret; - - ret = sqfs_dir_writer_begin(dirw, 0); - if (ret) - goto fail; - - for (it = node->data.dir.children; it != NULL; it = it->next) { - ret = sqfs_dir_writer_add_entry(dirw, it->name, it->inode_num, - it->inode_ref, it->mode); - if (ret) - goto fail; - } - - ret = sqfs_dir_writer_end(dirw); - if (ret) - goto fail; - - xattr = node->xattr_idx; - parent_inode = (node->parent == NULL) ? 0 : node->parent->inode_num; - - inode = sqfs_dir_writer_create_inode(dirw, 0, xattr, parent_inode); - if (inode == NULL) { - ret = SQFS_ERROR_ALLOC; - goto fail; - } - - return inode; -fail: - sqfs_perror(filename, "recoding directory entries", ret); - return NULL; -} - -int sqfs_serialize_fstree(const char *filename, sqfs_file_t *file, - sqfs_super_t *super, fstree_t *fs, - sqfs_compressor_t *cmp, sqfs_id_table_t *idtbl) -{ - sqfs_inode_generic_t *inode; - sqfs_meta_writer_t *im, *dm; - sqfs_dir_writer_t *dirwr; - sqfs_u32 offset; - sqfs_u64 block; - tree_node_t *n; - int ret = -1; - size_t i; - - im = sqfs_meta_writer_create(file, cmp, 0); - if (im == NULL) { - ret = SQFS_ERROR_ALLOC; - goto out_err; - } - - dm = sqfs_meta_writer_create(file, cmp, - SQFS_META_WRITER_KEEP_IN_MEMORY); - if (dm == NULL) { - ret = SQFS_ERROR_ALLOC; - goto out_im; - } - - dirwr = sqfs_dir_writer_create(dm); - if (dirwr == NULL) { - ret = SQFS_ERROR_ALLOC; - goto out_dm; - } - - super->inode_table_start = file->get_size(file); - - for (i = 0; i < fs->inode_tbl_size; ++i) { - n = fs->inode_table[i]; - - if (S_ISDIR(n->mode)) { - inode = write_dir_entries(filename, dirwr, n); - - if (inode == NULL) { - ret = 1; - goto out; - } - } else if (S_ISREG(n->mode)) { - inode = n->data.file.user_ptr; - n->data.file.user_ptr = NULL; - - if (inode == NULL) { - ret = SQFS_ERROR_INTERNAL; - goto out; - } - } else { - inode = tree_node_to_inode(n); - - if (inode == NULL) { - ret = SQFS_ERROR_ALLOC; - goto out; - } - } - - inode->base.mode = n->mode; - inode->base.mod_time = n->mod_time; - inode->base.inode_number = n->inode_num; - - sqfs_inode_set_xattr_index(inode, n->xattr_idx); - - ret = sqfs_id_table_id_to_index(idtbl, n->uid, - &inode->base.uid_idx); - if (ret) { - free(inode); - goto out; - } - - ret = sqfs_id_table_id_to_index(idtbl, n->gid, - &inode->base.gid_idx); - if (ret) { - free(inode); - goto out; - } - - sqfs_meta_writer_get_position(im, &block, &offset); - fs->inode_table[i]->inode_ref = (block << 16) | offset; - - ret = sqfs_meta_writer_write_inode(im, inode); - free(inode); - - if (ret) - goto out; - } - - ret = sqfs_meta_writer_flush(im); - if (ret) - goto out; - - ret = sqfs_meta_writer_flush(dm); - if (ret) - goto out; - - super->root_inode_ref = fs->root->inode_ref; - super->directory_table_start = file->get_size(file); - - ret = sqfs_meta_write_write_to_file(dm); - if (ret) - goto out; - - ret = 0; -out: - sqfs_dir_writer_destroy(dirwr); -out_dm: - sqfs_meta_writer_destroy(dm); -out_im: - sqfs_meta_writer_destroy(im); -out_err: - if (ret < 0) { - sqfs_perror(filename, "storing filesystem tree", - ret); - } - return ret; -} |