built-in ftpd and uploaded file permissions

[Sergei Vyshenski]

Dear experts,

Using built-in ftpd,
is it possible to control permissions of uploaded files
for user anonymous?

Files, uploaded by anonymous, have permissions 644
irrespective of mask values requested by
1) option -u for ftpd, and
2) from file login.conf

I would prefer to have 660 for uploaded files, as
input directory has --Srwx-wx mode.

Thank you very much for any comment.
Sergei