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Re: df --local
- From: Michael A Chase <mchase at ix dot netcom dot com>
- To: cygwin at cygwin dot com, Igor Pechtchanski <pechtcha at cs dot nyu dot edu>
- Date: Sat, 21 Sep 2002 11:40:25 -0700 (Pacific Daylight Time)
- Subject: Re: df --local
- References: <Pine.GSO.4.44.0209211238040.15469-100000@slinky.cs.nyu.edu>
On Sat, 21 Sep 2002 12:46:13 -0400 (EDT) Igor Pechtchanski <pechtcha@cs.nyu.edu> wrote:
> On Sat, 21 Sep 2002, egor duda wrote:
>
> > Friday, 20 September, 2002 Rob Brown rob@mp3.com wrote:
> >
> > RB> OK, that will *mostly* work except for the cdrom drive issue.
> >
> > The proper way is to convert path to win32 form and then use
> > GetDriveType() and GetVolumeInformation() APIs.
>
> This is related to the question I asked on the cygwin-developers list (
> http://www.cygwin.com/ml/cygwin-developers/2002-09/msg00078.html ). Maybe
> people can discuss it here...
>
> Basically, Cygwin's getmntent() returns either "user" or "system" as the
> fstype, whereas on other systems (Linux, etc) the fstype is the type of
> the filesystem (cdrom, nfs, local, etc). I was proposing a change to make
> the user/system distinction part of mnt_opts, and set the type field to
> whatever's returned by GetVolumeInformation(). This method is called in
> path.cc anyway, to distinguish Samba filesystems...
It sounds like a good idea to me. I found the current values being used in
a few places.
newlib/libc/sys/linux/fstab.c
Just passing the value through.
newlib/libc/sys/linux/mntent_r.c
Extracting the value from a string.
I'm not sure where the string is created, possibly path.cc.
winsup/cygwin/path.cc
Converts bits in flags to string ("user" or "system").
winsup/utils/cygcheck.cc
Prints whatever it finds in mnt->mnt_type.
winsup/utils/mount.cc
Uses current values of mnt_type several places.
winsup/utils/path.cc
Converts m->issys to string ("user" or "system").
winsup/utils/umount.cc
Tests p->mnt_type for current values.
It looks like the main confusion would come from people parsing the output
from cygcheck or mount and expecting the current values of "user" or
"system".
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