OK, this will not work for Net::SSH::Perl -- I don't have that module installed, and I hear it is nontrivial on a Solaris platform. Besides, at some point I need to go home. But your problem intrigued me because I currently had no way to handle problems with my existing Net::SSH use. I played for quite a while with IO::Capture before I realized that the output from the Net::SSH->ssh() method was neither STDERR nor STDOUT for my script.
So I wrote a little program using Net::SSH->sshopen3() which seems to work pretty well in both the happy and unhappy cases:
#!/usr/local/bin/perl -w
use Net::SSH qw(sshopen3);
use strict;
Main: {
my $host = 'nobody@nowhere.com';
my @command = ('ls -al;', 'echo Howdy!');
my $reader = IO::File->new();
my $writer = IO::File->new();
my $error = IO::File->new();
sshopen3( $host, $writer, $reader, $error, @command ) or die $!;
local $/ = undef;
my $output_stream = <$reader>;
my $error_stream = <$error>;
if ( length $error_stream ) {
print "SSH error: $error_stream";
}
if ( length $output_stream ) {
print "SSH output: $output_stream";
}
}
If you use the $host string I have provided, you should see a message to that effect in $error_stream, which you could capture and reformat for display in your CGI script. I hope that helps you at least a little.
No good deed goes unpunished. -- (attributed to) Oscar Wilde
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