samba - Dec 2005 - win98 opening remote lmhosts as read-write

I'm playing with the #INCLUDE directive available for windows'
\windows\LMHOSTS file. It works like this:

192.168.1.10	PANDORA	#PRE
#INCLUDE \\PANDORA\public\lmhosts

This makes windows (at least the 98 version I'm testing) fetch the
remote lmhosts file.

During boot, windows 98 fetches this file allright. But with a catch:
for some reason, it opens it in read-write mode, even though nothing is
written to it. This is bad :( It means I would need to expose this file
for anonymous remote read-write access.

I thought about using the fake_perms VFS module to overcome this, but it
only intercepts stat() and fstat(). Would it be a bad idea to extend it
to also intercept the open call and lie about the file being opened as
read-write?