sysv_pty(8) [osf1 man page]

SYSV_PTY(8)						      System Manager's Manual						       SYSV_PTY(8)

NAME

       SYSV_PTY - Makes the system use the SVR4 pseudo terminal name space

SYNOPSIS

       /dev/SYSV_PTY

DESCRIPTION

       The  SYSV_PTY  shell  script activates the SVR4 pty (pseudo terminal) name space as the default.  The SVR4 pty special files have a name in
       the form of /dev/pts/N.	The SYSV_PTY shell script takes no arguments.  To reactivate the BSD pseudoterminal name space, invoke the MAKEDEV
       command to create the pty special files.

SEE ALSO

       Commands: MAKEDEV(8)

       Files: pty(7)

																       SYSV_PTY(8)

PTY(4)							   BSD Kernel Interfaces Manual 						    PTY(4)

NAME

     pty -- BSD-style compatibility pseudo-terminal driver

SYNOPSIS

     device pty

DESCRIPTION

     The pty driver provides support for the traditional BSD naming scheme that was used for accessing pseudo-terminals.  When the device
     /dev/ptyXX is being opened, a new terminal shall be created with the pts(4) driver.  A device node for this terminal shall be created, which
     has the name /dev/ttyXX.

     New code should not try to allocate pseudo-terminals using this interface.  It is only provided for compatibility with older C libraries that
     tried to open such devices when posix_openpt(2) was being called.

FILES

     The BSD-style compatibility pseudo-terminal driver uses the following device names:

     /dev/pty[l-sL-S][0-9a-v]  Pseudo-terminal master devices.

     /dev/tty[l-sL-S][0-9a-v]  Pseudo-terminal slave devices.

DIAGNOSTICS

     None.

SEE ALSO

     posix_openpt(2), pts(4), tty(4)

HISTORY

     A pseudo-terminal driver appeared in 4.2BSD.

BUGS

     Unlike previous implementations, the master slave device nodes are destroyed when the PTY becomes unused.	A call to stat(2) on a nonexistent
     master device will already cause a new master device node to be created.  The master device can only be destroyed by opening and closing it.

     The pty driver cannot be unloaded, because it cannot determine if it is being used.

BSD
								  August 20, 2008							       BSD