patch from Erik de Castro Lopo <[email protected]>:

patch from Erik de Castro Lopo <[email protected]>:

  In the Linux kernel the packet statistics are zeroed during each retrieval.
  In contrast, on FreeBSD, the packet statistics are retrived using
  ioctl(BIOCGSTATS):

  The patch adds a static variable to pcap_stats_linux() which
  holds a running total of the packet statistics so that the behaviour
  of pcap_stats() on Linux matches the behaviour of FreeBSD.