Option to login to a pty instead of a serial port

[hackerb9]

Python has a pty (pseudo TTY) library, so it should be possible to open a shell on the current machine instead of requiring a connection over a serial port.

For example, I am trying to ascertain if an H19 terminal would work to connect to a TRS-80 Model 100 to provide a larger screen. The Model 100's internal screen codes appears to be based on something like an H19. For example, to position the cursor, one can use "PRINT CHR$(27)+Y+" ", just like on an H19.

I don't need a serial port to test this, but the h19term program currently requires one.

[horga83]

There are tools available to do this such as socat.  Haven a look it should be able to connect h19term to a pty. George

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On Sat, 2022-10-08 at 10:10 -0700, hackerb9 wrote: Python has a pty (pseudo TTY) library, so it should be possible to open a shell on the current machine instead of requiring a connection over a serial port. For example, I am trying to ascertain if an H19 terminal would work to connect to a TRS-80 Model 100 to provide a larger screen. The Model 100's internal screen codes appears to be based on something like an H19. For example, to position the cursor, one can use "PRINT CHR$(27)+Y+" ", just like on an H19. I don't need a serial port to test this, but the h19term program currently requires one. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[hackerb9]

Thanks for the tip! That worked.

If you want to document how to do it for other people, here's what I did:

1. Edit $HOME/.h19termrc and set

   [SerialComms]
   port = ttyH19
   

2. Run socat to create a virtual serial port called "ttyH19" in the current directory:

   TERM=h19 LANG=C  socat PTY,link=ttyH19,wait-slave EXEC:bash,pty,ctty,login,stderr,setsid,sigint,sighup,sigquit,sane &
   

3. In the same directory, run h19term.py.

   ./h19term.py
   

After that, you'll be logged into your current host in an H19 terminal. When you logout, h19term and socat will automatically quit.

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By the way, thank you for creating h19term.py. I haven't used an H19 in a looooong time.

[horga83]

Thank you.

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On Sun, 2022-10-09 at 21:26 -0700, hackerb9 wrote: Thanks for the tip! That worked. If you want to document how to do it for other people, here's what I did: 1. Edit $HOME/.h19termrc and set[SerialComms] port = ttyH19 2. Run socat to create a virtual serial port called "ttyH19" in the current directory:TERM=h19 socat PTY,link=ttyH19,wait-slave EXEC:bash,pty,ctty,login,stderr,setsid,sigint,sighup,sigquit,sane & 3. In the same directory, run h19term.py../h19term.py After that, you'll be logged into your current host in an H19 terminal. When you logout, h19term and socat will automatically quit. By the way, thank you for creating h19term.py. I haven't used an H19 in a looooong time. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: ***@***.***>