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_com-
       pile().


RETURN VALUE

       pcap_setfilter()  returns  0  on  success  and -1 on failure.  If -1 is
       returned, pcap_geterr() or pcap_perror() may be called  with  p  as  an
       argument to fetch or display the error text.


SEE ALSO

       pcap(3), pcap_compile(3), pcap_geterr(3)



                                 5 April 2008                PCAP_SETFILTER(3)