09-13-2011
On Debian and downstream, yes, but as far as I know not on Fedora or downstream.
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LEARN ABOUT OPENSOLARIS
ptem
ptem(7M) STREAMS Modules ptem(7M)
NAME
ptem - STREAMS Pseudo Terminal Emulation module
SYNOPSIS
int ioctl(fd, I_PUSH, "ptem");
DESCRIPTION
ptem is a STREAMS module that, when used in conjunction with a line discipline and pseudo terminal driver, emulates a terminal.
The ptem module must be pushed (see I_PUSH, streamio(7I)) onto the slave side of a pseudo terminal STREAM, before the ldterm(7M) module is
pushed.
On the write-side, the TCSETA, TCSETAF, TCSETAW, TCGETA, TCSETS, TCSETSW, TCSETSF, TCGETS, TCSBRK, JWINSIZE, TIOCGWINSZ, and TIOCSWINSZ
termio ioctl(2) messages are processed and acknowledged. If remote mode is not in effect, ptem handles the TIOCSTI ioctl by copying the
argument bytes into an M_DATA message and passing it back up the read side. Regardless of the remote mode setting, ptem acknowledges the
ioctl and passes a copy of it downstream for possible further processing. A hang up (that is, stty 0) is converted to a zero length M_DATA
message and passed downstream. Termio cflags and window row and column information are stored locally one per stream. M_DELAY messages are
discarded. All other messages are passed downstream unmodified.
On the read-side all messages are passed upstream unmodified with the following exceptions. All M_READ and M_DELAY messages are freed in
both directions. A TCSBRK ioctl is converted to an M_BREAK message and passed upstream and an acknowledgement is returned downstream. A
TIOCSIGNAL ioctl is converted into an M_PCSIG message, and passed upstream and an acknowledgement is returned downstream. Finally a
TIOCREMOTE ioctl is converted into an M_CTL message, acknowledged, and passed upstream; the resulting mode is retained for use in subse-
quent TIOCSTI parsing.
FILES
<sys/ptem.h>
SEE ALSO
stty(1), ioctl(2), ldterm(7M), pckt(7M), streamio(7I), termio(7I)
STREAMS Programming Guide
SunOS 5.11 3 Jul 1990 ptem(7M)