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pcap_stats(3)                                              pcap_stats(3)


       pcap_stats - get capture statistics


       #include <pcap/pcap.h>

       pcap_stats(3) *p, struct pcap_stat *ps);


       pcap_stats() fills in the struct pcap_stat pointed to by its second
       argument.  The values represent packet statistics from the start of the
       run to the time of the call.

       pcap_stats() is supported only on live captures, not on ``savefiles''; no
       statistics are stored in ``savefiles'', so no statistics are available
       when reading from a ``savefile''.

       A struct pcap_stat has the following members:

                     number of packets received;

                     number of packets dropped because there was no room in the
                     operating system's buffer when they arrived, because
                     packets weren't being read fast enough;

                     number of packets dropped by the network interface or its

       The statistics do not behave the same way on all platforms.  ps_recv
       might count packets whether they passed any filter set with
       pcap_setfilter(3) or not, or it might count only packets that pass
       the filter.  It also might, or might not, count packets dropped because
       there was no room in the operating system's buffer when they arrived.
       ps_drop is not available on all platforms; it is zero on platforms where
       it's not available.  If packet filtering is done in libpcap, rather than
       in the operating system, it would count packets that don't pass the
       filter.  Both ps_recv and ps_drop might, or might not, count packets not
       yet read from the operating system and thus not yet seen by the
       application.  ps_ifdrop might, or might not, be implemented; if it's
       zero, that might mean that no packets were dropped by the interface, or
       it might mean that the statistic is unavailable, so it should not be
       treated as an indication that the interface did not drop any packets.


       pcap_stats() returns 0 on success, PCAP_ERROR_NOT_ACTIVATED if called on
       a capture handle that has been created but not activated, or PCAP_ERROR
       if there is another error or if p doesn't support packet statistics. If
       PCAP_ERROR is returned, pcap_geterr(3) or pcap_perror(3) may be
       called with p as an argument to fetch or display the error text.



                                  5 March 2022                 pcap_stats(3)

libpcap 1.10.2 - Generated Sun Jan 1 19:55:39 CST 2023
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