2.0.4b: file structure leackage. Serious bug!

[Andrej Borsenkow]

This is 2.0.4b + Win2k patch of Matt Chapman.

Problem description: trying to extract large (~50M) Zip archive using WinZIP
(context explorer menu -> extract to), I got errors:

[1999/06/21 17:55:43, 0] smbd/files.c:(85)
  ERROR! Out of file structures

Analysing it, it looks the following problem:

WinZIP tries to create directory structure for every extracted file. Every time
it does so, SAMBA allocates a file structure for every directory level created -
but never frees it at all. So, after WinZIP is through with

\a\b\c\d\file

SAMBA frees file structure for ``file'' but not structures for a,b,c,d.

It is not related to system files - they are properly closed

I attach log level 5 that show this.

[sorry, I copy this to samba-technical as the last time I never got any response
from samba-bugs]

regards

/andrej
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