I suggest that you use a second fork(), and then exec in the child process of that fork. Something like this in setupProcess: 
#!/usr/bin/perl -w

use strict;


my $sshpid = fork();
defined($sshpid)
  or die "fork error: $!";
if ($sshpid)
{
  print "Parent PID is $$\n";
  # Parent
  $SIG{HUP} = sub { 
                    warn "Aborting ssh pid $sshpid\n"; 
                    kill 'ABRT', $sshpid;
                    exit(1);
                  };
  wait;
  exit(0);
}
else
{
  # Child
  exec '/bin/sleep 6'
    or die "exec error: $!";
}

[download]

I'm using an ABRT signal because that's what you used; I still don't think it's the right signal for this purpose, although I'm not sure what is if you can't use TERM.

In reply to Re: Re: Re: Signals and subprocesses using fork, and system or exec. by sgifford
in thread Signals and subprocesses using fork, and system or exec. by exussum0

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