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This directory has a few utilities that will hopefully make it easier to trace
tty problems. Here's how to proceed:
1) test tty sanity on the local host (the one you're running zssh on).
- cd in this directory, type make to build the tools.
- run ./local_test. this script runs local_tty_test, which basically opens
a pty/tty pair on the local host, prints all 256 ascii chars on the tty,
and displays what comes out of the pty on stdout.
it also checks the other direction - writing to the pty, reading frome the
tty.
2) test tty sanity on the remote host (the one you're ssh'ing to).
same thing: copy the zssh source tree there, run configure, cd to the test/
directory, type make and run the script.
3) end to end test:
[local side]
- on the local host, cd to this directory (test/).
- connect to the remote side using zssh
[remote side, through zssh]
- cd to the test/ directory that got created in step 2)
- there should be a ttydump program in there. it roughly does a
cat > output.dump
(as the tty is put in raw mode however, it's immune to ^C and stuff, so
you'll have to kill it from another term)
run it:
$ ./ttydump
type ' kill 15627 ' to kill me
output file is output.dump
- now hit the zssh escape key, and type
zssh > hook ./ttyprint
that will send our reference output on the tty.
- now kill ttydump from another term on the remote host.
- check the output:
$ ./check_remote_test
remote tty test passed !
4) end to end test, the other way this time:
proceed likewise but with the remote side sending, and local side receiving:
[remote side, through zssh]
- it's a little bit more tricky because you need to setup the local side before
the remote side can send, so :
$ sleep 20 ; ./ttyprint
- hit zssh escape key
zssh > hook ./ttydump
[local side]
- wait 20 seconds, kill ttydump
- check the output:
$ ./check_remote_test
remote tty test passed !
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