Given the following: (look familiar?) 
sub establishSession {
   my  @sshPort;
  if ($sshPort =~ /(\d+)/)
    {@sshPort = ("port", $1)}
else {return &error ("invalid port number");}
 
  &xferOpen ('SESSION', $clusterHost,"compression", "yes", @sshPort)
 
||  return &error("couldn't connect to $clusterHost : $xferError");

  return $success;
}

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I am trying to rewrite this routine so that it will make 3 atempts to succeed before "return &error()". Why doesn't this work? 
sub establishSession {
   my  @sshPort;
  if ($sshPort =~ /(\d+)/)
    {@sshPort = ("port", $1)}
else {return &error ("invalid port number");}

for (my $tries = 1; $tries < 4; $tries++) { 

print "Attempt $tries to connect\n";
  
&xferOpen ('SESSION', $clusterHost,"compression", "yes", @sshPort);
} 

return &error("couldn't connect to $clusterHost : $xferError");

  return $success;
}

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I can't seem to get the hang of iteration using a FOR loop. Here's the output: 
[ssesar@burl-dhcp152-211 20010808]$ ./pushproc-devel-20010808.pl
Attempt 1 to connect
SAxfer.pl: spawning timeout 3 ssh '-oBatchMode yes' -x -n -p 22 -c 3de
+s '-oCompression yes' localhost /bin/true
Attempt 2 to connect
Attempt 3 to connect 
p
pushproc.pl: ERROR: couldn't connect to localhost : process timed out 
+after 3 seconds
 
 
pushproc.pl: disconnecting from host (localhost)
 
pushproc.pl: reactivation of localhost failed
 
 
pushproc.pl statistics:
    1 hosts attempted
    0 host(s) succeeded
    1 host(s) failed
[ssesar@burl-dhcp152-211 20010808]$

[download]
What am I missing?

In reply to How to wrap a subroutine call in a for loop by Tuna

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