[PATCH]: Use the user supplied cygdrive prefix

[Pavel Tsekov <ptsekov at gmx dot net>]

Hello,

with the latest release (1.5.13-1) I have trouble accessing drives via a
prefix other than /cygdrive. It seems that this was introduced by the
following change:

2004-10-28  Pierre Humblet <pierre.humblet@ieee.org>

        * path.cc (mount_info::from_registry): Deimpersonate while
        accessing HKLM.
        (mount_info::read_cygdrive_info_from_registry): Ditto.
        * cygheap.h: Define NO_IMPERSONATION.
        (cygheap_user::issetuid): Replace INVALID_HANDLE_VALUE by
        NO_IMPERSONATION.
        (cygheap_user::has_impersonation_tokens): Ditto.
        (cygheap_user::close_impersonation_tokens): Ditto.
        * uinfo.cc (uinfo_init): Ditto.
        * syscalls.cc (seteuid32): Ditto.
        * security.cc (set_impersonation_token): Ditto.

Here is how the system behaves without the patch:

Administrator@mordor ~
$ mount
C:\cygwin\usr\X11R6\lib\X11\fonts on /usr/X11R6/lib/X11/fonts type system
(binmode)
C:\cygwin\usr\share\mc\extfs on /usr/share/mc/extfs type system
(binmode,cygexec)
C:\cygwin\bin on /usr/bin type system (binmode)
C:\cygwin\lib on /usr/lib type system (binmode)
C:\cygwin on / type system (binmode)
c: on /cygdrive/c type system (binmode,noumount)

Administrator@mordor ~
$ mount -p
Prefix              Type         Flags
/mnt                user         binmode
/cygdrive           system       binmode

Administrator@mordor ~
$ cd /mnt/c
bash: cd: /mnt/c: No such file or directory

Administrator@mordor ~
$

and with the patch:

Administrator@mordor ~
$ mount
C:\cygwin\usr\X11R6\lib\X11\fonts on /usr/X11R6/lib/X11/fonts type system
(binmode)
C:\cygwin\usr\share\mc\extfs on /usr/share/mc/extfs type system
(binmode,cygexec)
C:\cygwin\bin on /usr/bin type system (binmode)
C:\cygwin\lib on /usr/lib type system (binmode)
C:\cygwin on / type system (binmode)
c: on /mnt/c type user (binmode,noumount)

Administrator@mordor ~
$ mount -p
Prefix              Type         Flags
/mnt                user         binmode
/cygdrive           system       binmode

Administrator@mordor ~
$ cd /mnt/c

Administrator@mordor /mnt/c
$


Here is the changelog entry:

2005-03-06  Pavel Tsekov  <ptsekov@gmx.net>

	* path.cc (mount_info::read_cygdrive_info_from_registry):
	Use the user prefix if it exists.

Attachment: path.cc.cygdrive.patch
Description: Text document