pcap_offline_filter(3) - NetBSD Manual Pages

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PCAP_OFFLINE_FILTER(3)                                  PCAP_OFFLINE_FILTER(3)




NAME

       pcap_offline_filter - check whether a filter matches a packet


SYNOPSIS

       #include <pcap/pcap.h>

       int pcap_offline_filter(const struct bpf_program *fp,
               const struct pcap_pkthdr *h, const u_char *pkt)


DESCRIPTION

       pcap_offline_filter()  checks whether a filter matches a packet.  fp is
       a pointer to a bpf_program struct, usually the  result  of  a  call  to
       pcap_compile().   h points to the pcap_pkthdr structure for the packet,
       and pkt points to the data in the packet.


RETURN VALUE

       pcap_offline_filter() returns the return value of the  filter  program.
       This  will  be zero if the packet doesn't match the filter and non-zero
       if the packet matches the filter.


SEE ALSO

       pcap(3), pcap_compile(3)



                                  13 May 2008           PCAP_OFFLINE_FILTER(3)