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Re^4: Fork exec and not wait?

by packetstormer (Monk)
on Jan 24, 2013 at 20:32 UTC ( #1015232=note: print w/replies, xml ) Need Help??

in reply to Re^3: Fork exec and not wait?
in thread Fork exec and not wait?

OK, thanks for the replies. I hope my tone wasn't dismissive of anyone's suggestions, I certainly didn't mean to be and I am grateful for anyone taking the time to respond!

Here is some code. I pass a string from a webpage and I then need to bring up an ssh tunnel in the background (I know I could do this using some existing modules instead of the system call but I stumbled across this issues and I'd like to figure it out this way!

#!/usr/bin/perl use strict; use CGI; use Frontier::Client; use Template; my $catch = $cgi->param("catch"); my $exec = 'ssh -T -N -i /home/user/.ssh/keys +/login.key -p 2022 -L 1111:'; my $pid; defined($pid = fork()) or die "We've go some forking trouble - $!\n"; if ($pid == 0) { exec($exec); die "No exec here and here's why: $!\n"; exit(); } my $server = Frontier::Client->new(url => $catch, ); my $name = $cgi->param("title"); my $cat = $cgi->param("category"); my $priority = "1"; my $Top = $server->boolean("0"); my $method = "appenurl"; my $u = $cgi->param("u"); my $i = $cgi->param("i"); my $r = $cgi->param("r"); my $url = "$u&$i&$r"; my $result = $server->call("appendurl",($name,$cat,$priority,$Top,$url +) );
So, if I pass the CGI param via the command line I get the tunnel up and sits at the remote login prompt (after a sucessful login) it doesn't continue on to the XMLRPC part. In a browser, the headers (which I am calling from a templat e not included in this code) don't get printed, the script just hangs.

I am starting to think I am doing something really trivially, stupid at this stage?

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