pcap_setfilter(3) - NetBSD Manual Pages

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PCAP_SETFILTER(3)                                            PCAP_SETFILTER(3)




NAME

       pcap_setfilter - set the filter


SYNOPSIS

       #include <pcap/pcap.h>

       int pcap_setfilter(pcap_t *p, struct bpf_program *fp);


DESCRIPTION

       pcap_setfilter()  is used to specify a filter program.  fp is a pointer
       to  a  bpf_program  struct,  usually  the   result   of   a   call   to
       pcap_compile(3).


RETURN VALUE

       pcap_setfilter()  returns  0  on  success and PCAP_ERROR on failure. 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.


SEE ALSO

       pcap(3)



                                 25 July 2018                PCAP_SETFILTER(3)