Using a /dev/ptc on WindowsXP using Expect

[11a21a31a]

I am using Expect library with the TCL/TK interface on the Unix IRIX systems. I have ported this code using MKS Nutcracker tool to WindowsXP. While tryig to run a command like "spawn ls", the expect library gives an error saying, "The system has no more ptys. Ask your system administrator to create more". I checked this error string in the code and found that it's coming as the code is failing to open "/dev/ptc" on the WindowsXP machine. Could someone suggest suggest how to resolves this problem.

 

[marsd]

Why don't you use Gordon Chaffee's port of expect to NT
that already has solutions to these problems?

http://bmrc.berkeley.edu/people/chaffee/tcltk.html

 

[11a21a31a]

Thanks for the tip, but I have already checked it out. His version of Expect is supported for TCL 8.0 only, but I am using TCL 7.6, so can't use his port. Though I also tried a couple of other things meanwhile: I replaced the "/dev/ptc" by "/dev/null" and it works, but it's very unstable and gives "sync byte write" or a broken "pipe error" after a couple of spawns or sometimes in the first spawn command. I also tried to create a pipe ans use, that also suffers from the same problem. So the problem is still open for me ..

 

[marsd]

I doubt you will get any help with this topic. Expect for
windows in any shape,form or facsimile thereof is not
a trivial project and none of the tclers at comp.lang.tcl
will touch it.
David Gravereaux was the last.
You could post to comp.lang.tcl and see if he has any suggestions.