I am using ssh from my application and must pass "-t -t" to ssh in order for it to work correctly. Otherwise, the stdin of my application is interfered with by the call to ssh. Forcing a pseudo terminal to ssh via the -t -t avoids this issue, but instead results in the following obscure error message coming back from ssh, although the application seems to work correctly otherwise:
tcgetattr: Inappropriate ioctl for device
I'd like to get rid of this message to keep it from happening instead of just supressing it, but am not sure why it is coming and what I should do to prevent it. I only get the message when -t -t are passed to ssh.
Note a similar question was asked here:
http://www.perlmonks.org/?node_id=664789The man page for ssh says:
-t Force pseudo-tty allocation. This can be used to execute arbitrary
screen-based programs on a remote machine, which can be very useful,
e.g., when implementing menu services. Multiple -t options force tty
allocation, even if ssh has no local tty.
