550     _Py_PREPARSE_DATA_BUFFER rdb = NULL;  in _winapi_CreateJunction_impl()  local
611         sizeof(rdb->MountPointReparseBuffer) -  in _winapi_CreateJunction_impl()
612         sizeof(rdb->MountPointReparseBuffer.PathBuffer) +  in _winapi_CreateJunction_impl()
615     rdb = (_Py_PREPARSE_DATA_BUFFER)PyMem_RawCalloc(1, rdb_size);  in _winapi_CreateJunction_impl()
616     if (rdb == NULL)  in _winapi_CreateJunction_impl()
619     rdb->ReparseTag = IO_REPARSE_TAG_MOUNT_POINT;  in _winapi_CreateJunction_impl()
620     rdb->ReparseDataLength = rdb_size - _Py_REPARSE_DATA_BUFFER_HEADER_SIZE;  in _winapi_CreateJunction_impl()
621     rdb->MountPointReparseBuffer.SubstituteNameOffset = 0;  in _winapi_CreateJunction_impl()
622     rdb->MountPointReparseBuffer.SubstituteNameLength =  in _winapi_CreateJunction_impl()
624     rdb->MountPointReparseBuffer.PrintNameOffset =  in _winapi_CreateJunction_impl()
625         rdb->MountPointReparseBuffer.SubstituteNameLength + sizeof(WCHAR);  in _winapi_CreateJunction_impl()
626     rdb->MountPointReparseBuffer.PrintNameLength = print_len * sizeof(WCHAR);  in _winapi_CreateJunction_impl()
630     wcscpy(rdb->MountPointReparseBuffer.PathBuffer, L"\\??\\");  in _winapi_CreateJunction_impl()
632                          rdb->MountPointReparseBuffer.PathBuffer + prefix_len,  in _winapi_CreateJunction_impl()
637     wcscpy(rdb->MountPointReparseBuffer.PathBuffer +  in _winapi_CreateJunction_impl()
639              rdb->MountPointReparseBuffer.PathBuffer + prefix_len);  in _winapi_CreateJunction_impl()
652     if (!DeviceIoControl(junction, FSCTL_SET_REPARSE_POINT, rdb, rdb_size,  in _winapi_CreateJunction_impl()
661     PyMem_RawFree(rdb);  in _winapi_CreateJunction_impl()