Technical data

PortServer Terminal Server Page 101
RTTY Program
The following is an extract from the RTTY source code mentioned on page 99, explaining the
command usage. RTTY is provided on a limited-support basis for our customers, when used with
the PortServer and other Digi network products.
/**********************************************************
* NAME
* rtty - Connect a tty to a remote TCP port.
*
* SYNOPSIS
* rtty [-dhw] tty host port
*
* DESCRIPTION
* rtty attaches the master side of a named pseudo tty
* to a TCP session.
*
* This is most often useful to allow a TCP terminal server
* port to appear as a local tty on some host computer.
*
* -[0-9] Wait for data to be written to the slave side of
* the pseudo tty before opening the connection;
* open the connection and sleep the given number
* seconds [0-9] before writing the data to the port.
*
* -d Daemonize. A detached child process is spawned
* to perform the program function, ignoring all
* signals.
*
* -h Hold the tty open so "stty" settings are not
* disrupted and EOF's are not sent when the tty
* is locally closed.
*
* -q Quit after one session is complete. Normally the
* program loops to handle multiple sessions.
*
* -s Suppress the copyright notice.
*
* -w Wait for data to be written to the tty port before
* executing the rsh command.
*
* -x Output debugging information. Specifying "x"
* twice produces even more output.
*
*
* To associate "ttypf" with the dedicated printer device
* connected to (PortServer) node ncx, port 4.
*
* rtty -dh ttypf ncx 2104
*
* To associate "ttysf" with a dial-in/dial-out (type mio)
* modem attached to (PortServer) node dbps port 13.
*
* rtty -1d ttysf dbps 2113
*/