can_modify_wim(WIMStruct *wim)
{
if (wim->hdr.total_parts != 1) {
- if (wim->filename)
- ERROR("Cannot modify \"%"TS"\": is a split WIM!", wim->filename);
- else
- ERROR("Cannot modify a split WIM!");
+ ERROR("Cannot modify \"%"TS"\": is part of a spanned set",
+ wim->filename);
return WIMLIB_ERR_SPLIT_UNSUPPORTED;
}
+ if (wim->hdr.flags & WIM_HDR_FLAG_READONLY) {
+ ERROR("Cannot modify \"%"TS"\": is marked read-only",
+ wim->filename);
+ return WIMLIB_ERR_WIM_IS_MARKED_READONLY;
+ }
return 0;
}