+++ This bug was initially created as a clone of Bug #677665 +++

Description of problem:
pinentry-ncurses fails if current tty is owned by different user
as the one running pinentry. This happens for example when users does "su -"
after logging in as normal user. The /dev/pts/XX file is not chown-ed to root
and therefore pinentry-ncurses fails

Version-Release number of selected component (if applicable):
pinentry-0.7.6-5.el6

How reproducible:
100%

Steps to Reproduce:
# ssh to a box as a normal user
# unset DISPLAY
# su -
# dd if=/dev/urandom of=testpartition bs=1M count=10
# losetup /dev/loop0 testpartition
# cryptsetup luksFormat /dev/loop0
(enter password)
# volume_key --save /dev/loop0 -o packet
  
Actual results:
volume_key: Error creating `packet': GPGME: Bad passphrase

Expected results:
No error and pinentry asks for password

Additional info:
Patch sent upstream by sochotni

--- Additional comment from sochotni on 2011-02-15 15:26:46 CET ---

More simple reproducer is this:
1. login as normal user
2. unset DISPLAY # to use curses 
3. su -
4. gpg2 --symmetric .bashrc

--- Additional comment from sochotni on 2011-02-15 15:29:28 CET ---

Created attachment 478883 [details]
Patch fixing the bug

This is patch that was sent upstream. Will be back after I hear back from them