+----------------------------------------------------------------------------+ | | | This man page documents libpcap version 1.10.0. | | | | Your system may have a different version installed, possibly with some | | local modifications. To achieve the best results, please make sure this | | version of this man page suits your needs. If necessary, try to look for | | a different version on this web site or in the man pages available in your | | installation. | | | +----------------------------------------------------------------------------+ PCAP_SETFILTER(3PCAP) PCAP_SETFILTER(3PCAP) NAME pcap_setfilter - set the filter SYNOPSIS #include 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)