[Bug 245] SSH can not log out under Solaris 2.6

[bugzilla-daemon at mindrot.org]

http://bugzilla.mindrot.org/show_bug.cgi?id=245





------- Additional Comments From dtucker at zip.com.au  2002-12-14 14:24 -------
The root cause appears to be an 8-year-old bug in Solaris (Sun bugid 1156877).
The bug is marked "fixed" but the testcase fails on my Solaris 8 box (with
recommended patches from a few weeks ago).

[quote]
The open routine of the master-side pty driver (ptm) sends an
M_SETOPTS message to the stream head that, among other things,
has the SO_ISTTY bit set.  This action has the effect of expressing
willingness to act as a controlling tty.  However, it is nonsensical
for the driver to do so, since it supports none of the other tty
semantics.
[snip]
However, opening /dev/ptmx with O_NOCTTY 
only prevents the problem until the user pushes another module on the 
stream head.  Note that this only happens if the process has no controlling
terminal already.
[snip]

Work Around
                                                                               
         Open the master-side pty with the O_NOCTTY open flag.

This works only if you don't push any streams modules - a
rather special case.
[/quote]




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