Mon May 20 19:42:38 CEST 2002                               0.0.9

  [libsk]
  send-packets.c: segfault occurs when packets have to be send very
  quickly and that ctrl+c is entered. It is cause in cleanup() because:
    - it calls print_stats() which calls libnet_name2addr() (and not
      libnet_name2addr_r() which is buggy)
    - it attempts to write to stdout, which mess up completely with the
      writings done in send_packets().
  It can be any of the 2 reasons ... or another one, I can't say :-(
  This is currently fixed by blocking some signals in cleanup before
  exiting. 
