Subj : RE: tcpser
To   : alterego
From : Blue White
Date : Mon May 11 2020 15:24:06

 al>   Re: tcpser
 al>   By: Blue White to All on Sun May 10 2020 06:39 pm

 BW> commands to older software that is listening on a serial port,
 BW> am I correct in believing that tcpser "creates" a virtual
 BW> serial port and that the serial port you are trying to emulate
 BW> does not actually have to physically exist on the host
 BW> machine?

 al> Not exactly.

 al> tcpser is a virtual modem, and basically bridges a serial device to
 al> a TCP socket and responds "OK" to modem AT commands.

 al> You need to give it a device to listen on - which could be ttyS0
 al> (if you have something physically connected to it).

If the /dev/ttyS1 exists, for example, but there is no actual physical
hardware serial port that ttyS1 points to, it won't work then?

 al> In my use case, I use another tool tty0tty which creates a virtual
 al> null modem. On one side tcpser listens (eg: tnt0), and on the other
 al> side the serial application connects to (eg: tnt1). In my case, I
 al> pass tnt1 to dosemu - which makes it available to a DOS machine as
 al> COM1. ...????

That is what I would be hoping to do... have a dosemu machine which
would identify an emulated modem as a COM port.

#

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