MFC rev 1.32, 1.33, 1.34: revision 1.32 date: 2005/09/18 19:24:05;  author: cognet;  state: Exp;  lines: +8 -2 Open the tty device and pass the fd for SNPSTTY.
MFC rev 1.32, 1.33, 1.34:
revision 1.32
date: 2005/09/18 19:24:05;  author: cognet;  state: Exp;  lines: +8 -2
Open the tty device and pass the fd for SNPSTTY.

revision 1.33
date: 2005/09/19 13:48:45;  author: ru;  state: Exp;  lines: +3 -3
Restore the ability to detach from a tty via SIOCSTTY and document
recent changes in a manpage.

revision 1.34
date: 2005/09/21 14:30:14;  author: cognet;  state: Exp;  lines: +8 -8
Close the tty file descriptor once we're done with it.
Use O_NONBLOCK when opening the tty device.

Approved by:	re

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