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Using IPC::Run to control ssh client

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Contributed by eisvogel on Oct 25, 2000 at 01:24 UTC
Q&A  > programs and processes


Description:

Hi there. I have a fairly simply task; I just want to use the IPC::Run module (with <pty redirect operator) and the batch-mode run routine to execute the ssh1 client, so that I can write by handle to its stdin and read (by handle) from its stdout and stderr. Does anyone know of any good code somewhere to do this, or any code that uses IPC::Run with ptys to execute anything?

Many thanks!

Answer: Using IPC::Run to control ssh client
contributed by lachoy

The Net::SSH module looks as if it might be useful.

Answer: Using IPC::Run to control ssh client
contributed by Lightknight

For some reason, if we start ssh directly, ssh doesn't accept these ptys (and tries to launch ssh askpass). But if we start bash first, and from there launch ssh, it works.

my $h = start ['bash'], '<pty<', \$in, '>pty>', \$outAndErr, timeo +ut(15); pump $h until $outAndErr =~ /$prompt/; $outAndErr=''; $in .= "ssh user\@host\n"; pump $h until $outAndErr =~ /password:/; $outAndErr=''; $in .= "password\n"; pump $h until $outAndErr =~ /$remotePrompt/; $outAndErr=''; # You're in - do your stuff
Disclaimer: The original version of the above snippet works, but I've simplified it for this posting, and it is possible there are (minor) bugs in the above.

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