static int
lte_rollback_export(struct wim_lookup_table_entry *lte, void *_lookup_table)
{
struct wim_lookup_table *lookup_table = _lookup_table;
lte->refcnt -= lte->out_refcnt;
if (lte->was_exported) {
lookup_table_unlink(lookup_table, lte);
free_lookup_table_entry(lte);
}
return 0;
}
/* Creates and appends a 'struct wim_image_metadata' for an empty image.
*
* The resulting image will be the last in the WIM, so its index will be
* the new value of wim->hdr.image_count. */
static int
add_empty_image_metadata(WIMStruct *wim)
{
int ret;
struct wim_lookup_table_entry *metadata_lte;
struct wim_security_data *sd;
struct wim_image_metadata *imd;
/* Create lookup table entry for this metadata resource (for now really
* just a dummy entry). */
ret = WIMLIB_ERR_NOMEM;
metadata_lte = new_lookup_table_entry();
if (!metadata_lte)
goto out;
metadata_lte->flags = WIM_RESHDR_FLAG_METADATA;
metadata_lte->unhashed = 1;
/* Create empty security data (no security descriptors). */
sd = new_wim_security_data();
if (!sd)
goto out_free_metadata_lte;
imd = new_image_metadata();
if (!imd)
goto out_free_security_data;
/* A NULL root_dentry indicates a completely empty image, without even a
* root directory. */
imd->root_dentry = NULL;
imd->metadata_lte = metadata_lte;
imd->security_data = sd;
imd->modified = 1;
/* Append as next image index. */
ret = append_image_metadata(wim, imd);
if (ret)
put_image_metadata(imd, NULL);
goto out;
out_free_security_data:
free_wim_security_data(sd);
out_free_metadata_lte:
free_lookup_table_entry(metadata_lte);
out:
return ret;
}
