connects to an open port

connect.nim

# purpose:
# check that we're able to connect to site:port
import uri, net, system
proc check_site*(host: Uri, port: Port): bool {.raises: [OSError,
  SslError].} =
  var socket = newSocket()
  try:
    socket.connect(host.hostname, port)
    return true
  # except OSError:
  except:
    echo getCurrentExceptionMsg()
    echo getCurrentException().getStackTrace
    return false
  finally:
    socket.close

compile with -d:ssl

index out of bounds: (i:-1) <= (n:-1)
main.nim(58) main
main.nim(56) main
ctrl.nim(55) start
manage_network.nim(9) check_site
net.nim(1582) connect
nativesockets.nim(266) getAddrInfo
oserr.nim(62) raiseOSError
system.nim(3831) []
system.nim(3016) sysFatal