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)