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login: give session ownership of VT

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The tty associated with a VT should be owned by the owner of the session
running on the VT. This is important for supporting a socket activated X
server, since the X server will open the tty itself.

This commit makes sure to chown the tty any time a session is
created and and chown it back to root any time the session
is removed. This behavior is copied from /bin/login.
This commit is contained in:
Ray Strode 2014-04-22 13:27:58 -04:00 committed by David Herrmann
parent 26e376bfe3
commit d6176c6c97
Notes: Lennart Poettering 2014-05-24 11:17:12 +08:00 
Backport: bugfix
1 changed files with 6 additions and 0 deletions
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6
src/login/logind-session.c
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@ -972,6 +972,10 @@ void session_mute_vt(Session *s) {
if (vt < 0)
return;
r = fchown(vt, s->user->uid, -1);
if (r < 0)
goto error;
r = ioctl(vt, KDSKBMODE, K_OFF);
if (r < 0)
goto error;
@ -1026,6 +1030,8 @@ void session_restore_vt(Session *s) {
mode.mode = VT_AUTO;
ioctl(vt, VT_SETMODE, &mode);
fchown(vt, 0, -1);
s->vtfd = safe_close(s->vtfd);
}