mc/lib/vfs/mc-vfs
Artem S. Tashkinov 07de6670ed Ticket #2050: extfs/urar: disable user/system configuration for list and copyout operations.
My system wide .rarrc contains these switches

switches= -m5 -mdG -r -s -t -ol -tl

So whenever you list the contents of any archive or copy a file out of
it, RAR/UNRAR will traverse *all* sub directories (note -r, recursive
switch) in a current directory trying to find *all* archives with the
same name. So, the net result might be that unrar/rar will extract
the wrong file and spend a lot of time trying to find archives with
the same name.

That's why I strongly suggest disabling user/system configuration
for archive list and copyout operations (note the added -cfg switch).

I have contacted Eugene Roshal and he said that he won't disable -r switch
for extract and archive list operations, so, we can only fix this problem
on our side.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
2010-04-22 10:18:46 +04:00
..
extfs Ticket #2050: extfs/urar: disable user/system configuration for list and copyout operations. 2010-04-22 10:18:46 +04:00
samba Reorganized pathes to files in '#include' directives 2010-01-26 10:30:22 +02:00
.gitignore Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
COPYING.LGPL Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
HACKING Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
Makefile.am extfs.ini file is replaced to extfs.d directory. 2010-02-15 16:10:02 +00:00
README Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
README.fish Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
cpio.c Changes for build after moving util.[ch] 2010-01-26 10:30:24 +02:00
direntry.c Applied MC indentation policy. 2010-03-30 16:21:22 +04:00
extfs.c Ticlet #1909: fix of extfs_read_archive() function. 2010-04-03 11:10:29 +04:00
fish.c Applied MC indentation policy. 2010-03-30 16:21:22 +04:00
fish.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
ftpfs.c Ticket #2018: strcpy() is used for overlaping strings. 2010-02-18 13:21:25 +00:00
ftpfs.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
gc.c Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
gc.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
local.c Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
local.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
mcfs.c Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
mcfs.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
mcfsutil.c Ticket #1925: Fixed conditional compile of mcserver 2010-01-27 21:56:46 +01:00
mcfsutil.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
mcserv.c Ticket #1902: (reopened defect) Possible security risk in mcserv.c 2010-02-05 17:36:19 +02:00
netutil.c Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
netutil.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
sfs.c extfs.ini file is replaced to extfs.d directory. 2010-02-15 16:10:02 +00:00
smbfs.c Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
smbfs.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
tar.c Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
undelfs.c Identation of some source files. 2010-02-26 11:26:00 +02:00
utilvfs.c Changes for build after moving util.[ch] 2010-01-26 10:30:24 +02:00
utilvfs.h Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
vfs-impl.h Reorganization of sources. Part 1. 2010-01-26 10:30:23 +02:00
vfs.c Applied MC indentation policy. 2010-03-30 16:21:22 +04:00
vfs.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00
xdirentry.h Moved dir $(srcdir)/vfs into $(srcdir)/lib/vfs/mc-vfs 2010-01-26 10:30:21 +02:00

README

NOTE: Although vfs has been meant to be implemented as a separate
entity redistributable under the LGPL in its current implementation it
uses GPLed code from src/. So there are two possibilities if you want
to use vfs:

1. Distribute your copy of vfs under the GPL. Then you can freely
include the GPLed functions from the rest of the mc source code.

2. Distribute your copy of vfs under the LGPL. Then you cannot include
the functions outside the vfs subdirectory. You must then either
rewrite them or work around them in other ways.

========================================================================

Hi!

I'm midnight commander's vfs layer. Before you start hacking me,
please read this file. I'm integral part of midnight commander, but I
try to go out and live my life myself as a shared library, too. That
means that I should try to use as little functions from midnight as
possible (so I'm tiny, nice and people like me), that I should not
pollute name space by unnecessary symbols (so I do not crash fellow
programs) and that I should have a clean interface between myself and
midnight.

Because I'm rather close to midnight, try to:

* Keep the indentation as the rest of the code. Following could help
you with your friend emacs:

(defun mc-c-mode ()
	"C mode with adjusted defaults for use with the Midnight commander."
	(interactive)
	(c-mode)
	(c-set-style "K&R")
	(setq	c-indent-level 4
		c-continued-statement-offset 4
		c-brace-offset 0
		c-argdecl-indent 4
		c-label-offset -4
		c-brace-imaginary-offset 0
		c-continued-brace-offset 0
		c-tab-always-indent nil
		c-basic-offset 4
		tab-width 8
		comment-column 60))

(setq auto-mode-alist (cons '(".*/mc/.*\\.[ch]$" . mc-c-mode)
                       auto-mode-alist))

And because I'm trying to live life on my own as libvfs.so, try to:

* Make sure all exported symbols are defined in vfs.h and begin with
'vfs_'.

* Do not make any references from midnight into modules like tar. It
would probably pollute name space and midnight would depend on concrete
configuration of libvfs. mc_setctl() and mc_ctl() are your
friends. (And mine too :-).

							 Pavel Machek
							 pavel@ucw.cz

PS: If you'd like to use my features in whole operating system, you
might want to link me to rpc.nfsd. On
http://atrey.karlin.mff.cuni.cz/~pavel/podfuk/podfuk.html you'll find
how to do it.

PPS: I have a friend, shared library called avfs, which is LD_PRELOAD
capable. You can reach her at http://www.inf.bme.hu/~mszeredi/avfs.