[scponly] Is there a way to forbid df ?...

[YLB]

Hi ! :)

I assume that my client (which is sftpdrive) is using the df function
as it shows me 40Gb free on the server (which is true, but I don't
want my users know that : I want they get informations relative to
their quota). So is there a way to disallow df function in scponly ?
(or to make it show the real user's freespace : quota - du [user's
homedir])

Cheers,

YLB.