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(3PCAP).

RETURN VALUE

       pcap_setfilter() returns 0  on  success  and  PCAP_ERROR  on  failure.  If  PCAP_ERROR  is
       returned,  pcap_geterr(3PCAP) or pcap_perror(3PCAP) may be called with p as an argument to
       fetch or display the error text.

SEE ALSO

       pcap(3PCAP)

                                           25 July 2018                     PCAP_SETFILTER(3PCAP)