[rt.cpan.org #64717] GetStatus() resets timer

[TIMBRODY via RT]

Wed Jan 12 11:19:29 2011: Request 64717 was acted upon.
Transaction: Ticket created by TIMBRODY
       Queue: Win32-Daemon
     Subject: GetStatus() resets timer
   Broken in: 20101014
    Severity: Important
       Owner: Nobody
  Requestors: timbr...@cpan.org
      Status: new
 Ticket <URL: https://rt.cpan.org/Ticket/Display.html?id=64717 >


It looks like getting the service status (e.g. via 
Win32::Service::GetStatus) resets the timer in Win32::Daemon. If a 
process queries the service status more frequently than the timer period 
set during StartService() the 'running' callback will never get executed.

This is an edge case but would allow a non-privileged user to trivially 
DoS a Win32::Daemon service e.g.

while(1)
{
Win32::Service::GetStatus('','ServiceID',my $s);
sleep(1);
}