toad@CS.CMU.EDU (Todd Kaufmann) (03/27/91)
On most machines here in cs.cmu.edu we are running Mach, which don't
usually have rsh (but of course perl runs on everything!). I've been
playing with the receptionish & client examples from the camel book, but if
the line doesn't have a newline after it, it isn't flushed.
Simple example "demon" script:
#!/bin/csh -f
# test non-blocking io
set flag=1
while ($flag)
echo -n "prompt> "
set ans=$<
if ("$ans" == "q") set flag=0
echo Did you say $ans \?
end
exit 0
the problem is that the prompt isn't seen until a line has been entered
(and then you see the previous prompt). I've tried (trial-n-error) to put
in an ioctl call in receptionist (add CBREAK - wrong?), but that didn't
seem to do it. rsh and telnet do this.. how?
What am I doing wrong?
Eventually I'd like to add passing sigint & sigquit to the remote end.
Does anyone have that?
.. oh yeah, I'm using perl 3.0, patch level 41. (and what about wait3?)
thanks a bunch,
Todd Kaufmann
Center for Machine Translation
CMU 412/ 268-7130